PStackX (cyclops-react 2.0.0-MI1 API)

All Superinterfaces:

java.util.Collection<T>, CollectionX<T>, Convert<Higher<PStackX.µ,T>>, ConvertableSequence<T>, ConvertableToReactiveSeq<T>, CyclopsCollectable<T>, ExtendedTraversable<T>, FilterableTransformable<T>, Filters<T>, FluentCollectionX<T>, FluentSequenceX<T>, Fn1<java.lang.Long,T>, FoldableTraversable<T>, Folds<T>, java.util.function.Function<java.lang.Long,T>, org.jooq.lambda.function.Function1<java.lang.Long,T>, Higher<PStackX.µ,T>, java.lang.Iterable<T>, IterableFilterable<T>, java.util.List<T>, OnEmpty<T>, OnEmptySwitch<T,org.pcollections.PStack<T>>, org.pcollections.PCollection<T>, PersistentCollectionX<T>, org.pcollections.PSequence<T>, org.pcollections.PStack<T>, org.reactivestreams.Publisher<T>, ReactiveStreamsTerminalOperations<T>, Sequential<T>, To<PStackX<T>>, ToStream<T>, Transformable<T>, TransformerTraversable<T>, Traversable<T>, Zippable<T>

All Known Implementing Classes:

LazyPStackX
```
public interface PStackX<T>
extends To<PStackX<T>>, org.pcollections.PStack<T>, PersistentCollectionX<T>, FluentSequenceX<T>, OnEmptySwitch<T,org.pcollections.PStack<T>>, Higher<PStackX.µ,T>
```

Nested Class Summary

Nested Classes
Modifier and Type	Interface and Description
`static class`	`PStackX.µ`
`static class`	`PStackX.Instances` Companion class for creating Type Class instances for working with PStacks

Nested classes/interfaces inherited from interface cyclops.function.Fn1
Fn1.FunctionalOperations<T1,R>

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method and Description
`default PStackX<T>`	`append(T... values)` Append values to the take of this ReactiveSeq
`default PStackX<T>`	`append(T value)`
`default <U> PStackX<U>`	`cast(java.lang.Class<? extends U> type)` Cast all elements in a stream to a given type, possibly throwing a `ClassCastException`.
`default <R> PStackX<R>`	`coflatMap(java.util.function.Function<? super PStackX<T>,? extends R> fn)` coflatMap pattern, can be used to perform lazy reductions / collections / folds and other terminal operations
`default PStackX<ReactiveSeq<T>>`	`combinations()` Generate the combinations based on values in the ExtendedTraversable.
`default PStackX<ReactiveSeq<T>>`	`combinations(int size)` Generate the combinations based on values in the ExtendedTraversable.
`default PStackX<T>`	`combine(java.util.function.BiPredicate<? super T,? super T> predicate, java.util.function.BinaryOperator<T> op)` Combine two adjacent elements in a PStackX using the supplied BinaryOperator This is a stateful grouping & reduction operation.
`default PStackX<T>`	`cycle(long times)` Convert to a Stream with the values repeated specified times
`default PStackX<T>`	`cycle(Monoid<T> m, long times)` Convert to a Stream with the result of a reduction operation repeated specified times
`default PStackX<T>`	`cycleUntil(java.util.function.Predicate<? super T> predicate)` Repeat in a Stream until specified predicate holds
`default PStackX<T>`	`cycleWhile(java.util.function.Predicate<? super T> predicate)` Repeat in a Stream while specified predicate holds
`default PStackX<T>`	`deleteBetween(int start, int end)` Delete elements between given indexes in a Stream
`default PStackX<T>`	`distinct()`
`default PStackX<T>`	`drop(long num)` `assertThat(ReactiveSeq.of(4,3,6,7).drop(2).toList(),equalTo(Arrays.asList(6,7)));`
`default PStackX<T>`	`dropRight(int num)` Generate a new Traversable that drops the specified number elements from the take of this Traversable
`default PStackX<T>`	`dropUntil(java.util.function.Predicate<? super T> p)` Generate a new Traversable that drops elements from this Traversable until the predicate holds
`default PStackX<T>`	`dropWhile(java.util.function.Predicate<? super T> p)` Generate a new Traversable that drops elements from this Traversable as long as the predicate holds
`PStackX<T>`	`efficientOpsOff()`
`PStackX<T>`	`efficientOpsOn()`
`static <T> PStackX<T>`	`empty()` `List<String> empty = PStack.empty(); //or PStack<String> empty = PStack.empty();`
`default <R> PStackX<R>`	`emptyUnit()`
`static <T> PStackX<T>`	`fill(long limit, T s)` Generate a PStackX from the provided value up to the provided limit number of times
`default PStackX<T>`	`filter(java.util.function.Predicate<? super T> pred)` Keep only elements for which the supplied predicates hold e.g.
`default PStackX<T>`	`filterNot(java.util.function.Predicate<? super T> fn)` Remove any elements for which the predicate holds (inverse operation to filter) e.g.
`default <R> PStackX<R>`	`flatMap(java.util.function.Function<? super T,? extends java.lang.Iterable<? extends R>> mapper)` Perform a flatMap operation on this collection.
`default <R> PStackX<R>`	`flatMapP(java.util.function.Function<? super T,? extends org.reactivestreams.Publisher<? extends R>> fn)`
`default <R> PStackX<R>`	`flatMapS(java.util.function.Function<? super T,? extends java.util.stream.Stream<? extends R>> fn)`
`default <R1,R> PStackX<R>`	`forEach2(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1, java.util.function.BiFunction<? super T,? super R1,? extends R> yieldingFunction)` Perform a two level nested internal iteration over this Stream and the supplied stream
`default <R1,R> PStackX<R>`	`forEach2(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1, java.util.function.BiFunction<? super T,? super R1,java.lang.Boolean> filterFunction, java.util.function.BiFunction<? super T,? super R1,? extends R> yieldingFunction)` Perform a two level nested internal iteration over this Stream and the supplied stream
`default <R1,R2,R> PStackX<R>`	`forEach3(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1, java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2, Fn3<? super T,? super R1,? super R2,? extends R> yieldingFunction)` Perform a three level nested internal iteration over this Stream and the supplied streams
`default <R1,R2,R> PStackX<R>`	`forEach3(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1, java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2, Fn3<? super T,? super R1,? super R2,java.lang.Boolean> filterFunction, Fn3<? super T,? super R1,? super R2,? extends R> yieldingFunction)` Perform a three level nested internal iteration over this Stream and the supplied streams
`default <R1,R2,R3,R> PStackX<R>`	`forEach4(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1, java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2, Fn3<? super T,? super R1,? super R2,? extends java.lang.Iterable<R3>> stream3, Fn4<? super T,? super R1,? super R2,? super R3,? extends R> yieldingFunction)` Perform a three level nested internal iteration over this Stream and the supplied streams
`default <R1,R2,R3,R> PStackX<R>`	`forEach4(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1, java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2, Fn3<? super T,? super R1,? super R2,? extends java.lang.Iterable<R3>> stream3, Fn4<? super T,? super R1,? super R2,? super R3,java.lang.Boolean> filterFunction, Fn4<? super T,? super R1,? super R2,? super R3,? extends R> yieldingFunction)` Perform a three level nested internal iteration over this Stream and the supplied streams
`default <X> PStackX<X>`	`from(java.util.Collection<X> col)` Conctruct an Extended Collection from a standard Collection
`static <T> PStackX<T>`	`fromCollection(java.util.Collection<T> values)` `List<String> list = PStacks.of(Arrays.asList("a","b","c")); // or PStack<String> list = PStacks.of(Arrays.asList("a","b","c"));`
`static <T> PStackX<T>`	`fromIterable(java.lang.Iterable<T> iterable)`
`static <T> PStackX<T>`	`fromIterator(java.util.Iterator<T> it)` Construct a PStackX from the provided Iterator
`static <T> PStackX<T>`	`fromPublisher(org.reactivestreams.Publisher<? extends T> publisher)` Construct a PStackX from an Publisher
`static <T> PStackX<T>`	`fromStream(java.util.stream.Stream<T> stream)` Reduce (immutable Collection) a Stream to a PStack, note for efficiency reasons, the produced PStack is reversed.
`static <T> PStackX<T>`	`generate(long limit, java.util.function.Supplier<T> s)` Generate a PStackX from the provided Supplier up to the provided limit number of times
`default <K> PStackX<org.jooq.lambda.tuple.Tuple2<K,ReactiveSeq<T>>>`	`grouped(java.util.function.Function<? super T,? extends K> classifier)` Group this Traversable by the provided classifying function and collected by the provided Collector
`default <K,A,D> PStackX<org.jooq.lambda.tuple.Tuple2<K,D>>`	`grouped(java.util.function.Function<? super T,? extends K> classifier, java.util.stream.Collector<? super T,A,D> downstream)` Group this Traversable by the provided classifying function and collected by the provided Collector
`default PStackX<ListX<T>>`	`grouped(int groupSize)` Group elements in a Stream
`default <C extends java.util.Collection<? super T>> PStackX<C>`	`grouped(int size, java.util.function.Supplier<C> supplier)` Batch elements in a Stream by size into a collection created by the supplied factory
`default PStackX<ListX<T>>`	`groupedStatefullyUntil(java.util.function.BiPredicate<ListX<? super T>,? super T> predicate)` Create Travesable of Lists where each List is populated while the supplied bipredicate holds.
`default PStackX<ListX<T>>`	`groupedUntil(java.util.function.Predicate<? super T> predicate)` Create a Traversable batched by List, where each batch is populated until the predicate holds
`default <C extends java.util.Collection<? super T>> PStackX<C>`	`groupedUntil(java.util.function.Predicate<? super T> predicate, java.util.function.Supplier<C> factory)` Create a ReactiveSeq batched by a Collection, where each batch is populated until the predicate holds
`default PStackX<ListX<T>>`	`groupedWhile(java.util.function.Predicate<? super T> predicate)` Create a Traversable batched by List, where each batch is populated while the predicate holds
`default <C extends java.util.Collection<? super T>> PStackX<C>`	`groupedWhile(java.util.function.Predicate<? super T> predicate, java.util.function.Supplier<C> factory)` Create a SequenceM batched by a Collection, where each batch is populated while the predicate holds
`default PStackX<T>`	`insertAt(int pos, T... values)` Insert data into a stream at given position
`default PStackX<T>`	`insertAtS(int pos, java.util.stream.Stream<T> stream)` Insert a Stream into the middle of this stream at the specified position
`default PStackX<T>`	`intersperse(T value)` Returns a stream with a given value interspersed between any two values of this stream.
`boolean`	`isEfficientOps()`
`static <T> PStackX<T>`	`iterate(long limit, T seed, java.util.function.UnaryOperator<T> f)` Create a PStackX by iterative application of a function to an initial element up to the supplied limit number of times
`default <W extends WitnessType<W>> ListT<W,T>`	`liftM(W witness)`
`default PStackX<T>`	`limit(long num)` `assertThat(ReactiveSeq.of(4,3,6,7).limit(2).toList(),equalTo(Arrays.asList(4,3));`
`default PStackX<T>`	`limitLast(int num)` Limit results to the last x elements in a SequenceM
`default PStackX<T>`	`limitUntil(java.util.function.Predicate<? super T> p)` Take elements from the Stream until the predicate returns true, after which all elements are excluded.
`default PStackX<T>`	`limitWhile(java.util.function.Predicate<? super T> p)` Take elements from the Stream while the predicate holds, once the predicate returns false all subsequent elements are excluded
`default <R> PStackX<R>`	`map(java.util.function.Function<? super T,? extends R> mapper)` Transform this functor using the supplied transformation function
`default PStackX<T>`	`materialize()`
`PStackX<T>`	`minus(int i)` Remove the element at the supplied index
`PStackX<T>`	`minus(java.lang.Object remove)` Remove the specified element from this collection
`PStackX<T>`	`minusAll(java.util.Collection<?> list)` Remove all the specified elements from this collection
`default <T> Reducer<org.pcollections.PStack<T>>`	`monoid()`
`static <T> PStackX<T>`	`narrow(PStackX<? extends T> stackX)` Narrow a covariant PStackX
`static <T> PStackX<T>`	`narrowK(Higher<PStackX.µ,T> list)` Convert the raw Higher Kinded Type for PStack types into the PStackType type definition class
`default PStackX<T>`	`notNull()` Filter elements retaining only values which are not null
`static <T> PStackX<T>`	`of(T... values)` Construct a PStack from the provided values
`default <U> PStackX<U>`	`ofType(java.lang.Class<? extends U> type)` Keep only those elements in a stream that are of a given type.
`default PStackX<T>`	`onEmpty(T value)` If this Container instance is empty, create a new instance containing the provided value
`default PStackX<T>`	`onEmptyGet(java.util.function.Supplier<? extends T> supplier)` If this Container instance is empty, create a new instance containing the value returned from the provided Supplier
`default PStackX<T>`	`onEmptySwitch(java.util.function.Supplier<? extends org.pcollections.PStack<T>> supplier)` Switch to container created by provided Supplier, if current Container empty
`default <X extends java.lang.Throwable> PStackX<T>`	`onEmptyThrow(java.util.function.Supplier<? extends X> supplier)` If this container instance is empty, throw the exception returned by the provided Supplier
`default PStackX<ReactiveSeq<T>>`	`permutations()` Generate the permutations based on values in the ExtendedTraversable.
`PStackX<T>`	`plus(int i, T e)` Add the supplied element at the supplied index
`PStackX<T>`	`plus(T e)` Add an element to this Collection
`PStackX<T>`	`plusAll(java.util.Collection<? extends T> list)` Add all supplied elements to this Collection
`PStackX<T>`	`plusAll(int i, java.util.Collection<? extends T> list)` Add all of the supplied elements at the supplied index
`default PStackX<T>`	`plusInOrder(T e)` Add an element to the collection
`default PStackX<T>`	`plusLoop(int max, java.util.function.IntFunction<T> value)`
`default PStackX<T>`	`plusLoop(java.util.function.Supplier<java.util.Optional<T>> supplier)`
`default PStackX<T>`	`prepend(T... values)` Prepend given values to the skip of the Stream
`default PStackX<T>`	`prepend(T value)`
`default PStackX<T>`	`prependS(java.util.stream.Stream<? extends T> stream)` Prepend Stream to this ReactiveSeq
`static PStackX<java.lang.Integer>`	`range(int start, int end)` Create a PStackX that contains the Integers between skip and take
`static PStackX<java.lang.Long>`	`rangeLong(long start, long end)` Create a PStackX that contains the Longs between skip and take
`default <EX extends java.lang.Throwable> PStackX<T>`	`recover(java.lang.Class<EX> exceptionClass, java.util.function.Function<? super EX,? extends T> fn)` Recover from a particular exception type
`default PStackX<T>`	`recover(java.util.function.Function<? super java.lang.Throwable,? extends T> fn)` Recover from an exception with an alternative value
`default PStackX<T>`	`removeAllS(java.lang.Iterable<? extends T> it)` Remove all elements in the supplied Iterable from this filterable
`default PStackX<T>`	`removeAllS(java.util.stream.Stream<? extends T> stream)` Remove all elements in the supplied Stream from this filterable
`default PStackX<T>`	`removeAllS(T... values)` Remove all supplied elements from this filterable
`default PStackX<T>`	`retainAllS(java.lang.Iterable<? extends T> it)` Retain only the supplied elements in the returned Filters
`default PStackX<T>`	`retainAllS(java.util.stream.Stream<? extends T> seq)` Retain only the supplied elements in the returned Filters
`default PStackX<T>`	`retainAllS(T... values)` Retain only the supplied elements in the returned Filters
`default <R> PStackX<R>`	`retry(java.util.function.Function<? super T,? extends R> fn)` Retry a transformation if it fails.
`default <R> PStackX<R>`	`retry(java.util.function.Function<? super T,? extends R> fn, int retries, long delay, java.util.concurrent.TimeUnit timeUnit)` Retry a transformation if it fails.
`default PStackX<T>`	`reverse()` Potentially efficient Stream reversal.
`default PStackX<T>`	`scanLeft(Monoid<T> monoid)` Scan left using supplied Monoid
`default <U> PStackX<U>`	`scanLeft(U seed, java.util.function.BiFunction<? super U,? super T,? extends U> function)` Scan left
`default PStackX<T>`	`scanRight(Monoid<T> monoid)` Scan right
`default <U> PStackX<U>`	`scanRight(U identity, java.util.function.BiFunction<? super T,? super U,? extends U> combiner)` Scan right
`default PStackX<T>`	`shuffle()`
`default PStackX<T>`	`shuffle(java.util.Random random)`
`static <T> PStackX<T>`	`singleton(T value)` Construct a PStack containing a single value
`default PStackX<T>`	`skip(long num)` `assertThat(ReactiveSeq.of(4,3,6,7).skip(2).toList(),equalTo(Arrays.asList(6,7)));`
`default PStackX<T>`	`skipLast(int num)` assertThat(ReactiveSeq.of(1,2,3,4,5) .skipLast(2) .collect(Collectors.toList()),equalTo(Arrays.asList(1,2,3)));
`default PStackX<T>`	`skipUntil(java.util.function.Predicate<? super T> p)` Drop elements from the Stream until the predicate returns true, after which all elements are included
`default PStackX<T>`	`skipWhile(java.util.function.Predicate<? super T> p)` SkipWhile drops elements from the Stream while the predicate holds, once the predicte returns true all subsequent elements are included *
`default PStackX<T>`	`slice(long from, long to)`
`default PStackX<PVectorX<T>>`	`sliding(int windowSize)` Create a sliding view over this Sequence
`default PStackX<PVectorX<T>>`	`sliding(int windowSize, int increment)` Create a sliding view over this Sequence
`default PStackX<T>`	`sorted()` `assertThat(ReactiveSeq.of(4,3,6,7)).sorted().toList(),equalTo(Arrays.asList(3,4,6,7)));`
`default PStackX<T>`	`sorted(java.util.Comparator<? super T> c)` `assertThat(ReactiveSeq.of(4,3,6,7).sorted((a,b) -> b-a).toList(),equalTo(Arrays.asList(7,6,4,3)));`
`default <U extends java.lang.Comparable<? super U>> PStackX<T>`	`sorted(java.util.function.Function<? super T,? extends U> function)`
`default ReactiveSeq<T>`	`stream()`
`PStackX<T>`	`subList(int start, int end)` Create a sub sequence between the two supplied index
`default PStackX<T>`	`take(long num)` `assertThat(ReactiveSeq.of(4,3,6,7).take(2).toList(),equalTo(Arrays.asList(4,3));`
`default PStackX<T>`	`takeRight(int num)` Generate a new Traversable that takes the specified number elements from the take of this Traversable
`default PStackX<T>`	`takeUntil(java.util.function.Predicate<? super T> p)` Generate a new Traversable that takes elements from this Traversable until the predicate holds
`default PStackX<T>`	`takeWhile(java.util.function.Predicate<? super T> p)` Generate a new Traversable that takes elements from this Traversable as long as the predicate holds
`default org.pcollections.PStack<T>`	`toPStack()`
`default PStackX<T>`	`toPStackX()`
`default <R> PStackX<R>`	`trampoline(java.util.function.Function<? super T,? extends Trampoline<? extends R>> mapper)` Performs a map operation that can call a recursive method without running out of stack space
`static <U,T> PStackX<T>`	`unfold(U seed, java.util.function.Function<? super U,java.util.Optional<org.jooq.lambda.tuple.Tuple2<T,U>>> unfolder)` Unfold a function into a PStackX
`default <R> PStackX<R>`	`unit(java.util.Collection<R> col)` Create a new instance of the same colleciton type from the supplied collection
`default <R> PStackX<R>`	`unit(R value)`
`default <R> PStackX<R>`	`unitIterator(java.util.Iterator<R> it)` Create an IterableFunctor instance of the same type from an Iterator
`static <C2,T> Higher<C2,Higher<PStackX.µ,T>>`	`widen2(Higher<C2,PStackX<T>> list)` Widen a PStackType nested inside another HKT encoded type
`PStackX<T>`	`with(int i, T e)` Replace the value at the specifed index with the supplied value
`default <U> PStackX<org.jooq.lambda.tuple.Tuple2<T,U>>`	`zip(java.lang.Iterable<? extends U> other)` Zip (merge) this collection with the supplied Iterable into a Colleciton containing Tuples Each Tuple contains one element from this collection and one from the other
`default <U,R> PStackX<R>`	`zip(java.lang.Iterable<? extends U> other, java.util.function.BiFunction<? super T,? super U,? extends R> zipper)` Zip (combine) this Zippable with the supplied Iterable using the supplied combining function
`default <S,U> PStackX<org.jooq.lambda.tuple.Tuple3<T,S,U>>`	`zip3(java.lang.Iterable<? extends S> second, java.lang.Iterable<? extends U> third)` zip 3 Streams into one
`default <T2,T3,T4> PStackX<org.jooq.lambda.tuple.Tuple4<T,T2,T3,T4>>`	`zip4(java.lang.Iterable<? extends T2> second, java.lang.Iterable<? extends T3> third, java.lang.Iterable<? extends T4> fourth)` zip 4 Streams into 1
`default <U> PStackX<org.jooq.lambda.tuple.Tuple2<T,U>>`	`zipS(java.util.stream.Stream<? extends U> other)` Zip (combine) this Zippable with the supplied Stream combining both into a Tuple2
`default <U,R> PStackX<R>`	`zipS(java.util.stream.Stream<? extends U> other, java.util.function.BiFunction<? super T,? super U,? extends R> zipper)` Zip (combine) this Zippable with the supplied Stream, using the supplied combining function
`default PStackX<org.jooq.lambda.tuple.Tuple2<T,java.lang.Long>>`	`zipWithIndex()` Add an index to the current Stream

Methods inherited from interface com.aol.cyclops2.types.To
to

Methods inherited from interface org.pcollections.PStack
subList

Methods inherited from interface org.pcollections.PSequence
add, addAll, remove, set

Methods inherited from interface org.pcollections.PCollection
add, addAll, clear, remove, removeAll, retainAll

Methods inherited from interface java.util.List
add, addAll, clear, contains, containsAll, equals, get, hashCode, indexOf, isEmpty, iterator, lastIndexOf, listIterator, listIterator, remove, removeAll, replaceAll, retainAll, size, sort, spliterator, toArray, toArray

Methods inherited from interface com.aol.cyclops2.data.collections.extensions.CollectionX
findAny, findFirst, getAtIndex, groupBy, head, headAndTail, isEmpty, iterator, peek, single, single, singleOptional

Methods inherited from interface com.aol.cyclops2.types.FoldableTraversable
apply, foldFuture, foldLazy, foldTry, forEach, forEach, forEach, forEach, forEach, runFuture, runLazy, seq, visit

Methods inherited from interface cyclops.function.Fn1
andThen, andThen, bind, compose, functionOps, lift, lift, liftF, liftOpt, liftTry, memoize, memoize, product, reader, λ, λv

Methods inherited from interface org.jooq.lambda.function.Function1
apply, applyPartially, applyPartially, curry, curry, from, toFunction

Methods inherited from interface java.util.function.Function
identity

Methods inherited from interface com.aol.cyclops2.types.stream.CyclopsCollectable
allMatch, anyMatch, avg, avgDouble, avgInt, avgLong, bitAnd, bitAndInt, bitAndLong, bitOr, bitOrInt, bitOrLong, collect, collectable, commonPrefix, commonSuffix, count, count, countDistinct, countDistinct, countDistinctBy, countDistinctBy, max, max, max, max, maxAll, maxAll, maxAll, maxAll, maxAllBy, maxAllBy, maxBy, maxBy, median, median, medianBy, medianBy, min, min, min, min, minAll, minAll, minAll, minAll, minAllBy, minAllBy, minBy, minBy, mode, modeAll, modeAllBy, modeBy, noneMatch, percentile, percentile, percentileBy, percentileBy, sum, sumDouble, sumInt, sumLong, toCollection, toList, toList, toMap, toMap, toSet, toSet, toString, toString

Methods inherited from interface com.aol.cyclops2.types.Folds
endsWith, endsWithIterable, firstValue, foldLeft, foldLeft, foldLeft, foldLeft, foldRight, foldRight, foldRight, foldRightMapToType, get, join, join, join, mapReduce, mapReduce, print, print, printErr, printOut, reduce, reduce, reduce, reduce, reduce, reduce, reduce, schedule, scheduleFixedDelay, scheduleFixedRate, startsWith, startsWithIterable, toConcurrentLazyCollection, toConcurrentLazyStreamable, toLazyCollection, xMatch

Methods inherited from interface com.aol.cyclops2.types.stream.ConvertableSequence
toDequeX, toFutureStream, toFutureStream, toListX, toMapX, toOptional, toPBagX, toPMapX, toPOrderedSetX, toPQueueX, toPSetX, toPVectorX, toQueueX, toSetX, toSimpleReact, toSimpleReact, toSortedSetX, toStreamable, toValue

Methods inherited from interface java.util.Collection
parallelStream, removeIf

Methods inherited from interface com.aol.cyclops2.hkt.Higher
apply_, apply, transform

Methods inherited from interface com.aol.cyclops2.hkt.Convert
convert

- Method Detail
 - widen2
```
static <C2,T> Higher<C2,Higher<PStackX.µ,T>> widen2(Higher<C2,PStackX<T>> list)
```
 Widen a PStackType nested inside another HKT encoded type
 
 Parameters:
 
 list - HTK encoded type containing a PStack to widen
 
 Returns:
 
 HKT encoded type with a widened PStack
 - narrowK
```
static <T> PStackX<T> narrowK(Higher<PStackX.µ,T> list)
```
 Convert the raw Higher Kinded Type for PStack types into the PStackType type definition class
 
 Parameters:
 
 list - HKT encoded list into a PStackType
 
 Returns:
 
 PStackType
 - liftM
```
default <W extends WitnessType<W>> ListT<W,T> liftM(W witness)
```
 - narrow
```
static <T> PStackX<T> narrow(PStackX<? extends T> stackX)
```
 Narrow a covariant PStackX
```
 
 PStackX<? extends Fruit> set = PStackX.of(apple,bannana);
 PStackX<Fruit> fruitSet = PStackX.narrow(set);
 
 
```
 Parameters:
 
 stackX - to narrow generic type
 
 Returns:
 
 POrderedSetX with narrowed type
 - range
```
static PStackX<java.lang.Integer> range(int start,
 int end)
```
 Create a PStackX that contains the Integers between skip and take
 
 Parameters:
 
 start - Number of range to skip from
 
 end - Number for range to take at
 
 Returns:
 
 Range PStackX
 - rangeLong
```
static PStackX<java.lang.Long> rangeLong(long start,
 long end)
```
 Create a PStackX that contains the Longs between skip and take
 
 Parameters:
 
 start - Number of range to skip from
 
 end - Number for range to take at
 
 Returns:
 
 Range PStackX
 - unfold
```
static <U,T> PStackX<T> unfold(U seed,
 java.util.function.Function<? super U,java.util.Optional<org.jooq.lambda.tuple.Tuple2<T,U>>> unfolder)
```
 Unfold a function into a PStackX
```
 
 PStackX.unfold(1,i->i<=6 ? Optional.of(Tuple.tuple(i,i+1)) : Optional.empty());
 
 //(1,2,3,4,5)
 
 
```
 Parameters:
 
 seed - Initial value
 
 unfolder - Iteratively applied function, terminated by an empty Optional
 
 Returns:
 
 PStackX generated by unfolder function
 - generate
```
static <T> PStackX<T> generate(long limit,
 java.util.function.Supplier<T> s)
```
 Generate a PStackX from the provided Supplier up to the provided limit number of times
 
 Parameters:
 
 limit - Max number of elements to generate
 
 s - Supplier to generate PStackX elements
 
 Returns:
 
 PStackX generated from the provided Supplier
 - fill
```
static <T> PStackX<T> fill(long limit,
 T s)
```
 Generate a PStackX from the provided value up to the provided limit number of times
 
 Parameters:
 
 limit - Max number of elements to generate
 
 s - Value for PStackX elements
 
 Returns:
 
 PStackX generated from the provided Supplier
 - iterate
```
static <T> PStackX<T> iterate(long limit,
 T seed,
 java.util.function.UnaryOperator<T> f)
```
 Create a PStackX by iterative application of a function to an initial element up to the supplied limit number of times
 
 Parameters:
 
 limit - Max number of elements to generate
 
 seed - Initial element
 
 f - Iteratively applied to each element to generate the next element
 
 Returns:
 
 PStackX generated by iterative application
 - of
```
@SafeVarargs
static <T> PStackX<T> of(T... values)
```
 Construct a PStack from the provided values
```
 
 List<String> list = PStacks.of("a","b","c");
 
 // or
 
 PStack<String> list = PStacks.of("a","b","c");
 
 
 
 
```
 Parameters:
 
 values - To add to PStack
 
 Returns:
 
 new PStack
 - fromIterator
```
static <T> PStackX<T> fromIterator(java.util.Iterator<T> it)
```
 Construct a PStackX from the provided Iterator
 
 Parameters:
 
 it - Iterator to populate PStackX
 
 Returns:
 
 Newly populated PStackX
 - fromPublisher
```
static <T> PStackX<T> fromPublisher(org.reactivestreams.Publisher<? extends T> publisher)
```
 Construct a PStackX from an Publisher
 
 Parameters:
 
 publisher - to construct PStackX from
 
 Returns:
 
 PStackX
 - fromIterable
```
static <T> PStackX<T> fromIterable(java.lang.Iterable<T> iterable)
```
 - fromCollection
```
static <T> PStackX<T> fromCollection(java.util.Collection<T> values)
```
```
 
 List<String> list = PStacks.of(Arrays.asList("a","b","c"));
 
 // or
 
 PStack<String> list = PStacks.of(Arrays.asList("a","b","c"));
 
 
 
```
 Specified by:
 
 fromCollection in interface CollectionX<T>
 
 Parameters:
 
 values - To add to PStack
 
 Returns:
 - empty
```
static <T> PStackX<T> empty()
```
```
 
 List<String> empty = PStack.empty();
 //or
 
 PStack<String> empty = PStack.empty();
 
 
```
 Returns:
 
 an empty PStack
 - singleton
```
static <T> PStackX<T> singleton(T value)
```
 Construct a PStack containing a single value List<String> single = PStacks.singleton("1"); //or PStack<String> single = PStacks.singleton("1");
 
 Parameters:
 
 value - Single value for PVector
 
 Returns:
 
 PVector with a single value
 - fromStream
```
static <T> PStackX<T> fromStream(java.util.stream.Stream<T> stream)
```
 Reduce (immutable Collection) a Stream to a PStack, note for efficiency reasons, the produced PStack is reversed.
```
 
 PStack<Integer> list = PStacks.fromStream(Stream.of(1,2,3));
 
 //list = [3,2,1]
 
```
 Parameters:
 
 stream - to convert to a PVector
 
 Returns:
 - materialize
```
default PStackX<T> materialize()
```
 Specified by:
 
 materialize in interface CollectionX<T>
 - forEach4
```
default <R1,R2,R3,R> PStackX<R> forEach4(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1,
 java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2,
 Fn3<? super T,? super R1,? super R2,? extends java.lang.Iterable<R3>> stream3,
 Fn4<? super T,? super R1,? super R2,? super R3,? extends R> yieldingFunction)
```
 Description copied from interface: CollectionX
 Perform a three level nested internal iteration over this Stream and the supplied streams
```
 
 
 //collectionX [1,2]
 
 collectionX.forEach4(a->ListX.range(10,13),
 (a,b)->ListX.of(""+(a+b),"hello world"),
 (a,b,c)->ListX.of(a,b,c)),
 (a,b,c,d)->c+":"a+":"+b);
 
 
 
```
 Specified by:
 
 forEach4 in interface CollectionX<T>
 
 Parameters:
 
 stream1 - Nested Stream to iterate over
 
 stream2 - Nested Stream to iterate over
 
 stream3 - Nested Stream to iterate over
 
 yieldingFunction - Function with pointers to the current element from both Streams that generates the new elements
 
 Returns:
 
 CollectionX with elements generated via nested iteration
 - forEach4
```
default <R1,R2,R3,R> PStackX<R> forEach4(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1,
 java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2,
 Fn3<? super T,? super R1,? super R2,? extends java.lang.Iterable<R3>> stream3,
 Fn4<? super T,? super R1,? super R2,? super R3,java.lang.Boolean> filterFunction,
 Fn4<? super T,? super R1,? super R2,? super R3,? extends R> yieldingFunction)
```
 Description copied from interface: CollectionX
 Perform a three level nested internal iteration over this Stream and the supplied streams
```
 
 //collectionX [1,2,3]
 
 collectionX.forEach4(a->ListX.range(10,13),
 (a,b)->ListX.of(""+(a+b),"hello world"),
 (a,b,c)->ListX.of(a,b,c),
 (a,b,c,d)-> c!=3,
 (a,b,c)->c+":"a+":"+b);
 
 
 
 
 
```
 Specified by:
 
 forEach4 in interface CollectionX<T>
 
 Parameters:
 
 stream1 - Nested Stream to iterate over
 
 stream2 - Nested Stream to iterate over
 
 stream3 - Nested Stream to iterate over
 
 filterFunction - Filter to apply over elements before passing non-filtered values to the yielding function
 
 yieldingFunction - Function with pointers to the current element from both Streams that generates the new elements
 
 Returns:
 
 CollectionX with elements generated via nested iteration
 - forEach3
```
default <R1,R2,R> PStackX<R> forEach3(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1,
 java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2,
 Fn3<? super T,? super R1,? super R2,? extends R> yieldingFunction)
```
 Description copied from interface: CollectionX
 Perform a three level nested internal iteration over this Stream and the supplied streams
```
 
 
 //collectionX [1,2]
 
 collectionX.forEach3(a->IntStream.range(10,13),
 (a,b)->Stream.of(""+(a+b),"hello world"),
 (a,b,c)->c+":"a+":"+b);
 
 
 //CollectionX[11:1:2,hello world:1:2,14:1:4,hello world:1:4,12:1:2,hello world:1:2,15:1:5,hello world:1:5]
 
 
```
 Specified by:
 
 forEach3 in interface CollectionX<T>
 
 Parameters:
 
 stream1 - Nested Stream to iterate over
 
 stream2 - Nested Stream to iterate over
 
 yieldingFunction - Function with pointers to the current element from both Streams that generates the new elements
 
 Returns:
 
 ReactiveSeq with elements generated via nested iteration
 - forEach3
```
default <R1,R2,R> PStackX<R> forEach3(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1,
 java.util.function.BiFunction<? super T,? super R1,? extends java.lang.Iterable<R2>> stream2,
 Fn3<? super T,? super R1,? super R2,java.lang.Boolean> filterFunction,
 Fn3<? super T,? super R1,? super R2,? extends R> yieldingFunction)
```
 Description copied from interface: CollectionX
 Perform a three level nested internal iteration over this Stream and the supplied streams
```
 
 //collectionX [1,2,3]
 
 collectionX.forEach3(a->ListX.range(10,13),
 (a,b)->Stream.of(""+(a+b),"hello world"),
 (a,b,c)-> c!=3,
 (a,b,c)->c+":"a+":"+b);
 
 
 //CollectionX[11:1:2,hello world:1:2,14:1:4,hello world:1:4,12:1:2,hello world:1:2,15:1:5,hello world:1:5]
 
 
```
 Specified by:
 
 forEach3 in interface CollectionX<T>
 
 Parameters:
 
 stream1 - Nested Stream to iterate over
 
 stream2 - Nested Stream to iterate over
 
 filterFunction - Filter to apply over elements before passing non-filtered values to the yielding function
 
 yieldingFunction - Function with pointers to the current element from both Streams that generates the new elements
 
 Returns:
 
 ReactiveSeq with elements generated via nested iteration
 - forEach2
```
default <R1,R> PStackX<R> forEach2(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1,
 java.util.function.BiFunction<? super T,? super R1,? extends R> yieldingFunction)
```
 Description copied from interface: CollectionX
 Perform a two level nested internal iteration over this Stream and the supplied stream
```
 
 //collectionX [1,2,3]
 
 collectionX.of(1,2,3).forEach2(a->ListX.range(10,13),
 (a,b)->a+b);
 
 
 //ReactiveSeq[11,14,12,15,13,16]
 
 
```
 Specified by:
 
 forEach2 in interface CollectionX<T>
 
 Parameters:
 
 stream1 - Nested Iterable to iterate over
 
 yieldingFunction - Function with pointers to the current element from both Streams that generates the new elements
 
 Returns:
 
 ReactiveSeq with elements generated via nested iteration
 - forEach2
```
default <R1,R> PStackX<R> forEach2(java.util.function.Function<? super T,? extends java.lang.Iterable<R1>> stream1,
 java.util.function.BiFunction<? super T,? super R1,java.lang.Boolean> filterFunction,
 java.util.function.BiFunction<? super T,? super R1,? extends R> yieldingFunction)
```
 Description copied from interface: CollectionX
 Perform a two level nested internal iteration over this Stream and the supplied stream
```
 
 
 //collectionX [1,2,3]
 
 collectionX.of(1,2,3).forEach2(a->ListX.range(10,13),
 (a,b)-> a<3 && b>10,
 (a,b)->a+b);
 
 
 //CollectionX[14,15]
 
 
```
 Specified by:
 
 forEach2 in interface CollectionX<T>
 
 Parameters:
 
 stream1 - Nested Stream to iterate over
 
 filterFunction - Filter to apply over elements before passing non-filtered values to the yielding function
 
 yieldingFunction - Function with pointers to the current element from both Streams that generates the new elements
 
 Returns:
 
 ReactiveSeq with elements generated via nested iteration
 - take
```
default PStackX<T> take(long num)
```
 Description copied from interface: Traversable
```
 assertThat(ReactiveSeq.of(4,3,6,7).take(2).toList(),equalTo(Arrays.asList(4,3));
 
```
 Specified by:
 
 take in interface CollectionX<T>
 
 Specified by:
 
 take in interface Traversable<T>
 
 Parameters:
 
 num - Limit element size to num
 
 Returns:
 
 Monad converted to Stream with elements up to num
 - drop
```
default PStackX<T> drop(long num)
```
 Description copied from interface: Traversable
```
 assertThat(ReactiveSeq.of(4,3,6,7).drop(2).toList(),equalTo(Arrays.asList(6,7))); 
 
```
 Specified by:
 
 drop in interface CollectionX<T>
 
 Specified by:
 
 drop in interface Traversable<T>
 
 Parameters:
 
 num - Number of elemenets to drop
 
 Returns:
 
 Traversable with specified number of elements skipped
 - toPStackX
```
default PStackX<T> toPStackX()
```
 Specified by:
 
 toPStackX in interface ConvertableSequence<T>
 - coflatMap
```
default <R> PStackX<R> coflatMap(java.util.function.Function<? super PStackX<T>,? extends R> fn)
```
 coflatMap pattern, can be used to perform lazy reductions / collections / folds and other terminal operations
```
 
 
 PStackX.of(1,2,3)
 .map(i->i*2)
 .coflatMap(s -> s.reduce(0,(a,b)->a+b))
 
 //PStackX[12]
 
 
```
 Parameters:
 
 fn - mapping function
 
 Returns:
 
 Transformed PStackX
 - combine
```
default PStackX<T> combine(java.util.function.BiPredicate<? super T,? super T> predicate,
 java.util.function.BinaryOperator<T> op)
```
 Combine two adjacent elements in a PStackX using the supplied BinaryOperator This is a stateful grouping & reduction operation. The output of a combination may in turn be combined with it's neighbor
```
 
 PStackX.of(1,1,2,3)
 .combine((a, b)->a.equals(b),Semigroups.intSum)
 .toListX()
 
 //ListX(3,4) 
 
```
 Specified by:
 
 combine in interface CollectionX<T>
 
 Specified by:
 
 combine in interface PersistentCollectionX<T>
 
 Specified by:
 
 combine in interface Traversable<T>
 
 Parameters:
 
 predicate - Test to see if two neighbors should be joined
 
 op - Reducer to combine neighbors
 
 Returns:
 
 Combined / Partially Reduced PStackX
 - unit
```
default <R> PStackX<R> unit(java.util.Collection<R> col)
```
 Description copied from interface: FluentCollectionX
 
 Create a new instance of the same colleciton type from the supplied collection
 
 Specified by:
 
 unit in interface FluentCollectionX<T>
 
 Specified by:
 
 unit in interface PersistentCollectionX<T>
 
 Parameters:
 
 col - Collection data to populate the new collection
 
 Returns:
 
 Collection as the same type as this collection
 - unit
```
default <R> PStackX<R> unit(R value)
```
 Specified by:
 
 unit in interface CollectionX<T>
 - unitIterator
```
default <R> PStackX<R> unitIterator(java.util.Iterator<R> it)
```
 Description copied from interface: Traversable
 Create an IterableFunctor instance of the same type from an Iterator
```
 
 ReactiveSeq<Integer> newSeq = seq.unitIterable(myIterator);

 
 
```
 Specified by:
 
 unitIterator in interface Traversable<T>
 
 Parameters:
 
 it - Iterator to create new IterableFunctor from
 
 Returns:
 
 New IterableFunctor instance
 - emptyUnit
```
default <R> PStackX<R> emptyUnit()
```
 Specified by:
 
 emptyUnit in interface PersistentCollectionX<T>
 - toPStack
```
default org.pcollections.PStack<T> toPStack()
```
 - plusInOrder
```
default PStackX<T> plusInOrder(T e)
```
 Description copied from interface: FluentCollectionX
 
 Add an element to the collection
 
 Specified by:
 
 plusInOrder in interface FluentCollectionX<T>
 
 Specified by:
 
 plusInOrder in interface PersistentCollectionX<T>
 
 Parameters:
 
 e - Element to add
 
 Returns:
 
 Collection with element added
 - stream
```
default ReactiveSeq<T> stream()
```
 Specified by:
 
 stream in interface java.util.Collection<T>
 
 Specified by:
 
 stream in interface CollectionX<T>
 
 Specified by:
 
 stream in interface ConvertableSequence<T>
 
 Specified by:
 
 stream in interface ExtendedTraversable<T>
 
 Specified by:
 
 stream in interface FoldableTraversable<T>
 
 Specified by:
 
 stream in interface PersistentCollectionX<T>
 
 Specified by:
 
 stream in interface Sequential<T>
 
 Specified by:
 
 stream in interface ToStream<T>
 
 Specified by:
 
 stream in interface TransformerTraversable<T>
 
 Specified by:
 
 stream in interface Traversable<T>
 
 Returns:
 
 This Traversable converted to a Stream
 - from
```
default <X> PStackX<X> from(java.util.Collection<X> col)
```
 Description copied from interface: CollectionX
 
 Conctruct an Extended Collection from a standard Collection
 
 Specified by:
 
 from in interface CollectionX<T>
 
 Specified by:
 
 from in interface PersistentCollectionX<T>
 
 Parameters:
 
 col - Collection to extend
 
 Returns:
 
 Extended Collection
 - monoid
```
default <T> Reducer<org.pcollections.PStack<T>> monoid()
```
 Specified by:
 
 monoid in interface PersistentCollectionX<T>
 - reverse
```
default PStackX<T> reverse()
```
 Description copied from interface: Traversable
 Potentially efficient Stream reversal. Is efficient if - Sequence created via a range - Sequence created via a List - Sequence created via an Array / var args Otherwise Sequence collected into a Collection prior to reversal
```
 assertThat( of(1, 2, 3).reverse().toList(),
 equalTo(asList(3, 2, 1))); 
```
 Specified by:
 
 reverse in interface CollectionX<T>
 
 Specified by:
 
 reverse in interface PersistentCollectionX<T>
 
 Specified by:
 
 reverse in interface Traversable<T>
 - efficientOpsOn
```
PStackX<T> efficientOpsOn()
```
 - efficientOpsOff
```
PStackX<T> efficientOpsOff()
```
 - isEfficientOps
```
boolean isEfficientOps()
```
 - filter
```
default PStackX<T> filter(java.util.function.Predicate<? super T> pred)
```
 Description copied from interface: Filters
 Keep only elements for which the supplied predicates hold e.g.
```
 
 
 of(1,2,3).filter(i->i>2);
 
 //[3]
 
 
 
```
 Specified by:
 
 filter in interface CollectionX<T>
 
 Specified by:
 
 filter in interface FilterableTransformable<T>
 
 Specified by:
 
 filter in interface Filters<T>
 
 Specified by:
 
 filter in interface FluentSequenceX<T>
 
 Specified by:
 
 filter in interface PersistentCollectionX<T>
 
 Parameters:
 
 pred - to filter elements by, retaining matches
 
 Returns:
 
 Filters with elements removed where the predicate does not hold
 - map
```
default <R> PStackX<R> map(java.util.function.Function<? super T,? extends R> mapper)
```
 Description copied from interface: Transformable
 Transform this functor using the supplied transformation function
```
 
 
 
 of(1,2,3).map(i->i*2)
 
 //[2,4,6]
 
 
 
```
 Specified by:
 
 map in interface CollectionX<T>
 
 Specified by:
 
 map in interface FilterableTransformable<T>
 
 Specified by:
 
 map in interface FluentSequenceX<T>
 
 Specified by:
 
 map in interface PersistentCollectionX<T>
 
 Specified by:
 
 map in interface Transformable<T>
 
 Parameters:
 
 mapper - Transformation function
 
 Returns:
 
 Transformed Transformable
 - flatMap
```
default <R> PStackX<R> flatMap(java.util.function.Function<? super T,? extends java.lang.Iterable<? extends R>> mapper)
```
 Description copied from interface: CollectionX
 
 Perform a flatMap operation on this collection. Results from the returned Iterables (from the provided transformation function) are flattened into the resulting collection.
 
 Specified by:
 
 flatMap in interface CollectionX<T>
 
 Specified by:
 
 flatMap in interface FluentSequenceX<T>
 
 Specified by:
 
 flatMap in interface PersistentCollectionX<T>
 
 Parameters:
 
 mapper - Transformation function to be applied (and flattened)
 
 Returns:
 
 A collection containing the flattened results of the transformation function
 - limit
```
default PStackX<T> limit(long num)
```
 Description copied from interface: Traversable
```
 assertThat(ReactiveSeq.of(4,3,6,7).limit(2).toList(),equalTo(Arrays.asList(4,3));
 
```
 Specified by:
 
 limit in interface CollectionX<T>
 
 Specified by:
 
 limit in interface PersistentCollectionX<T>
 
 Specified by:
 
 limit in interface Traversable<T>
 
 Parameters:
 
 num - Limit element size to num
 
 Returns:
 
 Monad converted to Stream with elements up to num
 - skip
```
default PStackX<T> skip(long num)
```
 Description copied from interface: Traversable
```
 assertThat(ReactiveSeq.of(4,3,6,7).skip(2).toList(),equalTo(Arrays.asList(6,7))); 
 
```
 Specified by:
 
 skip in interface CollectionX<T>
 
 Specified by:
 
 skip in interface PersistentCollectionX<T>
 
 Specified by:
 
 skip in interface Traversable<T>
 
 Parameters:
 
 num - Number of elemenets to skip
 
 Returns:
 
 Stream with specified number of elements skipped
 - takeRight
```
default PStackX<T> takeRight(int num)
```
 Description copied from interface: Traversable
 Generate a new Traversable that takes the specified number elements from the take of this Traversable
```
 
 ListX.of(1,2,3).takeRight(2);
 //[2,3]
 
 
```
 Specified by:
 
 takeRight in interface CollectionX<T>
 
 Specified by:
 
 takeRight in interface PersistentCollectionX<T>
 
 Specified by:
 
 takeRight in interface Traversable<T>
 
 Parameters:
 
 num - Take this number of elements from the take of this Traversable
 
 Returns:
 
 Traversable generated by application of the predicate to the elements in this Traversable in order
 - dropRight
```
default PStackX<T> dropRight(int num)
```
 Description copied from interface: Traversable
 Generate a new Traversable that drops the specified number elements from the take of this Traversable
```
 
 ListX.of(1,2,3).dropRight(2);
 //[1]
 
 
```
 Specified by:
 
 dropRight in interface CollectionX<T>
 
 Specified by:
 
 dropRight in interface PersistentCollectionX<T>
 
 Specified by:
 
 dropRight in interface Traversable<T>
 
 Parameters:
 
 num - Drop this number of elements from the take of this Traversable
 
 Returns:
 
 Traversable generated by application of the predicate to the elements in this Traversable in order
 - takeWhile
```
default PStackX<T> takeWhile(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 Generate a new Traversable that takes elements from this Traversable as long as the predicate holds
```
 
 ListX.of(1,2,3).takeWhile(i<3);
 //[1,2]
 
 
```
 Specified by:
 
 takeWhile in interface CollectionX<T>
 
 Specified by:
 
 takeWhile in interface PersistentCollectionX<T>
 
 Specified by:
 
 takeWhile in interface Traversable<T>
 
 Parameters:
 
 p - Predicate to determine when values should be taken
 
 Returns:
 
 Traversable generated by application of the predicate to the elements in this Traversable in order
 - dropWhile
```
default PStackX<T> dropWhile(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 Generate a new Traversable that drops elements from this Traversable as long as the predicate holds
```
 
 ListX.of(1,2,3).dropWhile(i<3);
 //[3]
 
 
```
 Specified by:
 
 dropWhile in interface CollectionX<T>
 
 Specified by:
 
 dropWhile in interface PersistentCollectionX<T>
 
 Specified by:
 
 dropWhile in interface Traversable<T>
 
 Parameters:
 
 p - Predicate to determine when values should be dropped
 
 Returns:
 
 Traversable generated by application of the predicate to the elements in this Traversable in order
 - takeUntil
```
default PStackX<T> takeUntil(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 Generate a new Traversable that takes elements from this Traversable until the predicate holds
```
 
 ListX.of(1,2,3).takeUntil(i<2);
 //[1,2]
 
 
```
 Specified by:
 
 takeUntil in interface CollectionX<T>
 
 Specified by:
 
 takeUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 takeUntil in interface Traversable<T>
 
 Parameters:
 
 p - Predicate to determine when values should be taken until
 
 Returns:
 
 Traversable generated by application of the predicate to the elements in this Traversable in order
 - dropUntil
```
default PStackX<T> dropUntil(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 Generate a new Traversable that drops elements from this Traversable until the predicate holds
```
 
 ListX.of(1,2,3).dropUntil(i>2);
 //[3]
 
 
```
 Specified by:
 
 dropUntil in interface CollectionX<T>
 
 Specified by:
 
 dropUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 dropUntil in interface Traversable<T>
 
 Parameters:
 
 p - Predicate to determine when values should be dropped
 
 Returns:
 
 Traversable generated by application of the predicate to the elements in this Traversable in order
 - trampoline
```
default <R> PStackX<R> trampoline(java.util.function.Function<? super T,? extends Trampoline<? extends R>> mapper)
```
 Description copied from interface: PersistentCollectionX
 Performs a map operation that can call a recursive method without running out of stack space
```
 
 ReactiveSeq.of(10,20,30,40)
 		 .trampoline(i-> fibonacci(i))
 		 .forEach(System.out::println); 
 		 
 Trampoline<Long> fibonacci(int i){
 	return fibonacci(i,1,0);
 }
 Trampoline<Long> fibonacci(int n, long a, long b) {
 	return n == 0 ? Trampoline.done(b) : Trampoline.more( ()->fibonacci(n-1, a+b, a));
 }		 
 		 
 55
 6765
 832040
 102334155
 
 
 ReactiveSeq.of(10_000,200_000,3_000_000,40_000_000)
 		 .trampoline(i-> fibonacci(i))
 		 .forEach(System.out::println);
 		 
 		 
 completes successfully
 
```
 Specified by:
 
 trampoline in interface CollectionX<T>
 
 Specified by:
 
 trampoline in interface PersistentCollectionX<T>
 
 Specified by:
 
 trampoline in interface Transformable<T>
 
 Parameters:
 
 mapper - TCO Transformation function
 
 Returns:
 
 Transformable transformed by the supplied transformation function
 - slice
```
default PStackX<T> slice(long from,
 long to)
```
 Specified by:
 
 slice in interface CollectionX<T>
 
 Specified by:
 
 slice in interface PersistentCollectionX<T>
 
 Specified by:
 
 slice in interface Traversable<T>
 - sorted
```
default > PStackX<T> sorted(java.util.function.Function<? super T,? extends U> function)
```
 Specified by:
 
 sorted in interface CollectionX<T>
 
 Specified by:
 
 sorted in interface PersistentCollectionX<T>
 
 Specified by:
 
 sorted in interface Traversable<T>
 - minusAll
```
PStackX<T> minusAll(java.util.Collection<?> list)
```
 Description copied from interface: FluentCollectionX
 
 Remove all the specified elements from this collection
 
 Specified by:
 
 minusAll in interface FluentCollectionX<T>
 
 Specified by:
 
 minusAll in interface FluentSequenceX<T>
 
 Specified by:
 
 minusAll in interface org.pcollections.PCollection<T>
 
 Specified by:
 
 minusAll in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 minusAll in interface org.pcollections.PStack<T>
 
 Parameters:
 
 list - of elements to remove
 
 Returns:
 
 Collection with the elements removed
 - minus
```
PStackX<T> minus(java.lang.Object remove)
```
 Description copied from interface: FluentCollectionX
 
 Remove the specified element from this collection
 
 Specified by:
 
 minus in interface FluentCollectionX<T>
 
 Specified by:
 
 minus in interface FluentSequenceX<T>
 
 Specified by:
 
 minus in interface org.pcollections.PCollection<T>
 
 Specified by:
 
 minus in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 minus in interface org.pcollections.PStack<T>
 
 Parameters:
 
 remove - Element to remove
 
 Returns:
 
 Collection with element removed
 - with
```
PStackX<T> with(int i,
 T e)
```
 Description copied from interface: FluentSequenceX
 
 Replace the value at the specifed index with the supplied value
 
 Specified by:
 
 with in interface FluentSequenceX<T>
 
 Specified by:
 
 with in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 with in interface org.pcollections.PStack<T>
 
 Parameters:
 
 i -
 
 e -
 
 Returns:
 
 See Also:
 
 PStack.with(int, java.lang.Object)
 - plus
```
PStackX<T> plus(int i,
 T e)
```
 Description copied from interface: FluentSequenceX
 
 Add the supplied element at the supplied index
 
 Specified by:
 
 plus in interface FluentSequenceX<T>
 
 Specified by:
 
 plus in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 plus in interface org.pcollections.PStack<T>
 
 Parameters:
 
 i -
 
 e -
 
 Returns:
 
 See Also:
 
 PStack.plus(int, java.lang.Object)
 - plus
```
PStackX<T> plus(T e)
```
 Description copied from interface: FluentCollectionX
 
 Add an element to this Collection
 
 Specified by:
 
 plus in interface FluentCollectionX<T>
 
 Specified by:
 
 plus in interface FluentSequenceX<T>
 
 Specified by:
 
 plus in interface org.pcollections.PCollection<T>
 
 Specified by:
 
 plus in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 plus in interface org.pcollections.PStack<T>
 
 Parameters:
 
 e - Element to add
 
 Returns:
 
 Collection with element added
 - plusAll
```
PStackX<T> plusAll(java.util.Collection<? extends T> list)
```
 Description copied from interface: FluentCollectionX
 
 Add all supplied elements to this Collection
 
 Specified by:
 
 plusAll in interface FluentCollectionX<T>
 
 Specified by:
 
 plusAll in interface FluentSequenceX<T>
 
 Specified by:
 
 plusAll in interface org.pcollections.PCollection<T>
 
 Specified by:
 
 plusAll in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 plusAll in interface org.pcollections.PStack<T>
 
 Parameters:
 
 list - of elements to add
 
 Returns:
 
 Collection with elements added
 - plusAll
```
PStackX<T> plusAll(int i,
 java.util.Collection<? extends T> list)
```
 Description copied from interface: FluentSequenceX
 
 Add all of the supplied elements at the supplied index
 
 Specified by:
 
 plusAll in interface FluentSequenceX<T>
 
 Specified by:
 
 plusAll in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 plusAll in interface org.pcollections.PStack<T>
 
 Parameters:
 
 i -
 
 list -
 
 Returns:
 
 See Also:
 
 PStack.plusAll(int, java.util.Collection)
 - minus
```
PStackX<T> minus(int i)
```
 Description copied from interface: FluentSequenceX
 
 Remove the element at the supplied index
 
 Specified by:
 
 minus in interface FluentSequenceX<T>
 
 Specified by:
 
 minus in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 minus in interface org.pcollections.PStack<T>
 
 Parameters:
 
 i -
 
 Returns:
 
 See Also:
 
 PStack.minus(int)
 - subList
```
PStackX<T> subList(int start,
 int end)
```
 Description copied from interface: FluentSequenceX
 
 Create a sub sequence between the two supplied index
 
 Specified by:
 
 subList in interface FluentSequenceX<T>
 
 Specified by:
 
 subList in interface java.util.List<T>
 
 Specified by:
 
 subList in interface org.pcollections.PSequence<T>
 
 Specified by:
 
 subList in interface org.pcollections.PStack<T>
 
 Parameters:
 
 start - Index of our sub sequence (inclusive)
 
 end - Index of our sub sequence (exclusive)
 
 Returns:
 - grouped
```
default PStackX<ListX<T>> grouped(int groupSize)
```
 Description copied from interface: Traversable
 Group elements in a Stream
```
 
 List<List<Integer>> list = ReactiveSeq.of(1, 2, 3, 4, 5, 6).grouped(3).collect(Collectors.toList());
 
 assertThat(list.get(0), hasItems(1, 2, 3));
 assertThat(list.get(1), hasItems(4, 5, 6));
 
 
 
```
 Specified by:
 
 grouped in interface CollectionX<T>
 
 Specified by:
 
 grouped in interface PersistentCollectionX<T>
 
 Specified by:
 
 grouped in interface Traversable<T>
 
 Parameters:
 
 groupSize - Size of each Group
 
 Returns:
 
 Stream with elements grouped by size
 - grouped
```
default <K,A,D> PStackX<org.jooq.lambda.tuple.Tuple2<K,D>> grouped(java.util.function.Function<? super T,? extends K> classifier,
 java.util.stream.Collector<? super T,A,D> downstream)
```
 Description copied from interface: Traversable
 
 Group this Traversable by the provided classifying function and collected by the provided Collector
 
 Specified by:
 
 grouped in interface CollectionX<T>
 
 Specified by:
 
 grouped in interface PersistentCollectionX<T>
 
 Specified by:
 
 grouped in interface Traversable<T>
 
 Parameters:
 
 classifier - Grouping function
 
 downstream - Collector to create the grouping collection
 
 Returns:
 
 Traversable of grouped data
 - grouped
```
default <K> PStackX<org.jooq.lambda.tuple.Tuple2<K,ReactiveSeq<T>>> grouped(java.util.function.Function<? super T,? extends K> classifier)
```
 Description copied from interface: Traversable
 
 Group this Traversable by the provided classifying function and collected by the provided Collector
 
 Specified by:
 
 grouped in interface CollectionX<T>
 
 Specified by:
 
 grouped in interface PersistentCollectionX<T>
 
 Specified by:
 
 grouped in interface Traversable<T>
 
 Parameters:
 
 classifier - Grouping function
 
 Returns:
 
 Traversable of grouped data
 - zip
```
default  PStackX<org.jooq.lambda.tuple.Tuple2<T,U>> zip(java.lang.Iterable<? extends U> other)
```
 Description copied from interface: CollectionX
 
 Zip (merge) this collection with the supplied Iterable into a Colleciton containing Tuples Each Tuple contains one element from this collection and one from the other
 
 Specified by:
 
 zip in interface CollectionX<T>
 
 Specified by:
 
 zip in interface PersistentCollectionX<T>
 
 Specified by:
 
 zip in interface Zippable<T>
 
 Parameters:
 
 other - Collection to merge with this one
 
 Returns:
 
 Merged collection
 - zip
```
default <U,R> PStackX<R> zip(java.lang.Iterable<? extends U> other,
 java.util.function.BiFunction<? super T,? super U,? extends R> zipper)
```
 Description copied from interface: Zippable
 
 Zip (combine) this Zippable with the supplied Iterable using the supplied combining function
 
 Specified by:
 
 zip in interface CollectionX<T>
 
 Specified by:
 
 zip in interface PersistentCollectionX<T>
 
 Specified by:
 
 zip in interface Traversable<T>
 
 Specified by:
 
 zip in interface Zippable<T>
 
 Parameters:
 
 other - to zip with
 
 zipper - Zip function
 
 Returns:
 
 Combined zippable
 - zipS
```
default <U,R> PStackX<R> zipS(java.util.stream.Stream<? extends U> other,
 java.util.function.BiFunction<? super T,? super U,? extends R> zipper)
```
 Description copied from interface: Zippable
 
 Zip (combine) this Zippable with the supplied Stream, using the supplied combining function
 
 Specified by:
 
 zipS in interface CollectionX<T>
 
 Specified by:
 
 zipS in interface PersistentCollectionX<T>
 
 Specified by:
 
 zipS in interface Zippable<T>
 
 Parameters:
 
 other - Stream to combine with
 
 zipper - Zip / combining function
 
 Returns:
 
 Combined zippable
 - permutations
```
default PStackX<ReactiveSeq<T>> permutations()
```
 Description copied from interface: ExtendedTraversable
 
 Generate the permutations based on values in the ExtendedTraversable.
 
 Specified by:
 
 permutations in interface CollectionX<T>
 
 Specified by:
 
 permutations in interface ExtendedTraversable<T>
 
 Specified by:
 
 permutations in interface PersistentCollectionX<T>
 
 Returns:
 
 Permutations from this ExtendedTraversable
 - combinations
```
default PStackX<ReactiveSeq<T>> combinations(int size)
```
 Description copied from interface: ExtendedTraversable
 Generate the combinations based on values in the ExtendedTraversable.
```
 
 ExtendedTraversable<Integer> stream = ReactiveSeq.of(1,2,3);
 stream.combinations(2)
 
 //ReactiveSeq[ReactiveSeq[1,2],ReactiveSeq[1,3],ReactiveSeq[2,3]]
 
 
```
 Specified by:
 
 combinations in interface CollectionX<T>
 
 Specified by:
 
 combinations in interface ExtendedTraversable<T>
 
 Specified by:
 
 combinations in interface PersistentCollectionX<T>
 
 Parameters:
 
 size - of combinations
 
 Returns:
 
 All combinations of the elements in this ExtendedTraversable of the specified size
 - combinations
```
default PStackX<ReactiveSeq<T>> combinations()
```
 Description copied from interface: ExtendedTraversable
 Generate the combinations based on values in the ExtendedTraversable.
```
 
 ReactiveSeq.of(1,2,3).combinations()
 
 //ReactiveSeq[ReactiveSeq[],ReactiveSeq[1],ReactiveSeq[2],ReactiveSeq[3].ReactiveSeq[1,2],ReactiveSeq[1,3],ReactiveSeq[2,3]
 			,ReactiveSeq[1,2,3]]
 
 
```
 Specified by:
 
 combinations in interface CollectionX<T>
 
 Specified by:
 
 combinations in interface ExtendedTraversable<T>
 
 Specified by:
 
 combinations in interface PersistentCollectionX<T>
 
 Returns:
 
 All combinations of the elements in this ExtendedTraversable
 - sliding
```
default PStackX<PVectorX<T>> sliding(int windowSize)
```
 Description copied from interface: Traversable
 Create a sliding view over this Sequence
```
 
 List<List<Integer>> list = ReactiveSeq.of(1, 2, 3, 4, 5, 6).sliding(2).collect(Collectors.toList());
 
 assertThat(list.get(0), hasItems(1, 2));
 assertThat(list.get(1), hasItems(2, 3));
 
 
 
 
```
 Specified by:
 
 sliding in interface CollectionX<T>
 
 Specified by:
 
 sliding in interface PersistentCollectionX<T>
 
 Specified by:
 
 sliding in interface Traversable<T>
 
 Parameters:
 
 windowSize - Size of sliding window
 
 Returns:
 
 SequenceM with sliding view
 - sliding
```
default PStackX<PVectorX<T>> sliding(int windowSize,
 int increment)
```
 Description copied from interface: Traversable
 Create a sliding view over this Sequence
```
 
 List<List<Integer>> list = ReactiveSeq.of(1, 2, 3, 4, 5, 6).sliding(3, 2).collect(Collectors.toList());
 
 assertThat(list.get(0), hasItems(1, 2, 3));
 assertThat(list.get(1), hasItems(3, 4, 5)); 
 
 
 
 
 
```
 Specified by:
 
 sliding in interface CollectionX<T>
 
 Specified by:
 
 sliding in interface PersistentCollectionX<T>
 
 Specified by:
 
 sliding in interface Traversable<T>
 
 Parameters:
 
 windowSize - number of elements in each batch
 
 increment - for each window
 
 Returns:
 
 SequenceM with sliding view
 - scanLeft
```
default  PStackX scanLeft(U seed,
 java.util.function.BiFunction<? super U,? super T,? extends U> function)
```
 Description copied from interface: Traversable
 Scan left
```
 
 assertThat(of("a", "b", "c").scanLeft("", String::concat).toList().size(),
 		is(4));
 
 
```
 Specified by:
 
 scanLeft in interface CollectionX<T>
 
 Specified by:
 
 scanLeft in interface PersistentCollectionX<T>
 
 Specified by:
 
 scanLeft in interface Traversable<T>
 - scanRight
```
default  PStackX scanRight(U identity,
 java.util.function.BiFunction<? super T,? super U,? extends U> combiner)
```
 Description copied from interface: Traversable
 Scan right
```
 
 assertThat(of("a", "ab", "abc").map(str->str.length()).scanRight(0, (t, u) -> u + t).toList().size(),
 is(asList(0, 3, 5, 6).size()));
 
 
 
```
 Specified by:
 
 scanRight in interface CollectionX<T>
 
 Specified by:
 
 scanRight in interface PersistentCollectionX<T>
 
 Specified by:
 
 scanRight in interface Traversable<T>
 - scanLeft
```
default PStackX<T> scanLeft(Monoid<T> monoid)
```
 Description copied from interface: Traversable
 Scan left using supplied Monoid
```
 
 
 	assertEquals(asList("", "a", "ab", "abc"),ReactiveSeq.of("a", "b", "c")
 													.scanLeft(Reducers.toString("")).toList());
 
 
 
```
 Specified by:
 
 scanLeft in interface CollectionX<T>
 
 Specified by:
 
 scanLeft in interface PersistentCollectionX<T>
 
 Specified by:
 
 scanLeft in interface Traversable<T>
 
 Returns:
 - scanRight
```
default PStackX<T> scanRight(Monoid<T> monoid)
```
 Description copied from interface: Traversable
 Scan right
```
 
 assertThat(of("a", "b", "c").scanRight(Monoid.of("", String::concat)).toList().size(),
 is(asList("", "c", "bc", "abc").size()));
 
 
```
 Specified by:
 
 scanRight in interface CollectionX<T>
 
 Specified by:
 
 scanRight in interface PersistentCollectionX<T>
 
 Specified by:
 
 scanRight in interface Traversable<T>
 - cycle
```
default PStackX<T> cycle(long times)
```
 Description copied from interface: Traversable
 Convert to a Stream with the values repeated specified times
```
 
 		ReactiveSeq.of(1,2,2)
 								.cycle(3)
 								.collect(Collectors.toList());
 								
 		//List[1,2,2,1,2,2,1,2,2]
 
 
 
```
 Specified by:
 
 cycle in interface CollectionX<T>
 
 Specified by:
 
 cycle in interface PersistentCollectionX<T>
 
 Specified by:
 
 cycle in interface Traversable<T>
 
 Parameters:
 
 times - Times values should be repeated within a Stream
 
 Returns:
 
 Stream with values repeated
 - cycle
```
default PStackX<T> cycle(Monoid<T> m,
 long times)
```
 Description copied from interface: Traversable
 Convert to a Stream with the result of a reduction operation repeated specified times
```
 
 List<Integer> list = ReactiveSeq.of(1,2,2))
 .cycle(Reducers.toCountInt(),3)
 .collect(Collectors.toList());
 //List[3,3,3];
 
 
```
 Specified by:
 
 cycle in interface CollectionX<T>
 
 Specified by:
 
 cycle in interface PersistentCollectionX<T>
 
 Specified by:
 
 cycle in interface Traversable<T>
 
 Parameters:
 
 m - Monoid to be used in reduction
 
 times - Number of times value should be repeated
 
 Returns:
 
 Stream with reduced values repeated
 - cycleWhile
```
default PStackX<T> cycleWhile(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 Repeat in a Stream while specified predicate holds
```
 
 MutableInt count = MutableInt.of(0);
 ReactiveSeq.of(1, 2, 2).cycleWhile(next -> count++ < 6).collect(Collectors.toList());
 
 // List(1,2,2,1,2,2)
 
 
```
 Specified by:
 
 cycleWhile in interface CollectionX<T>
 
 Specified by:
 
 cycleWhile in interface PersistentCollectionX<T>
 
 Specified by:
 
 cycleWhile in interface Traversable<T>
 
 Parameters:
 
 predicate - repeat while true
 
 Returns:
 
 Repeating Stream
 - cycleUntil
```
default PStackX<T> cycleUntil(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 Repeat in a Stream until specified predicate holds
```
 
 	MutableInt count =MutableInt.of(0);
 		ReactiveSeq.of(1,2,2)
 		 		.cycleUntil(next -> count.get()>6)
 		 		.peek(i-> count.mutate(i->i+1))
 		 		.collect(Collectors.toList());
 
 		//List[1,2,2,1,2,2,1]	
 
 
```
 Specified by:
 
 cycleUntil in interface CollectionX<T>
 
 Specified by:
 
 cycleUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 cycleUntil in interface Traversable<T>
 
 Parameters:
 
 predicate - repeat while true
 
 Returns:
 
 Repeating Stream
 - zipS
```
default  PStackX<org.jooq.lambda.tuple.Tuple2<T,U>> zipS(java.util.stream.Stream<? extends U> other)
```
 Description copied from interface: Traversable
 
 Zip (combine) this Zippable with the supplied Stream combining both into a Tuple2
 
 Specified by:
 
 zipS in interface CollectionX<T>
 
 Specified by:
 
 zipS in interface PersistentCollectionX<T>
 
 Specified by:
 
 zipS in interface Traversable<T>
 
 Specified by:
 
 zipS in interface Zippable<T>
 
 Parameters:
 
 other - Stream to combine with
 
 Returns:
 
 Combined Zippable
 - zip3
```
default <S,U> PStackX<org.jooq.lambda.tuple.Tuple3<T,S,U>> zip3(java.lang.Iterable<? extends S> second,
 java.lang.Iterable<? extends U> third)
```
 Description copied from interface: Traversable
 zip 3 Streams into one
```
 
 List<Tuple3<Integer, Integer, Character>> list = of(1, 2, 3, 4, 5, 6).zip3(of(100, 200, 300, 400), of('a', 'b', 'c')).collect(Collectors.toList());
 
 // [[1,100,'a'],[2,200,'b'],[3,300,'c']]
 
 
 
```
 Specified by:
 
 zip3 in interface CollectionX<T>
 
 Specified by:
 
 zip3 in interface PersistentCollectionX<T>
 
 Specified by:
 
 zip3 in interface Traversable<T>
 
 Specified by:
 
 zip3 in interface Zippable<T>
 - zip4
```
default <T2,T3,T4> PStackX<org.jooq.lambda.tuple.Tuple4<T,T2,T3,T4>> zip4(java.lang.Iterable<? extends T2> second,
 java.lang.Iterable<? extends T3> third,
 java.lang.Iterable<? extends T4> fourth)
```
 Description copied from interface: Traversable
 zip 4 Streams into 1
```
 
 List<Tuple4<Integer, Integer, Character, String>> list = of(1, 2, 3, 4, 5, 6).zip4(of(100, 200, 300, 400), of('a', 'b', 'c'), of("hello", "world"))
 .collect(Collectors.toList());
 
 
 // [[1,100,'a',"hello"],[2,200,'b',"world"]]
 
```
 Specified by:
 
 zip4 in interface CollectionX<T>
 
 Specified by:
 
 zip4 in interface PersistentCollectionX<T>
 
 Specified by:
 
 zip4 in interface Traversable<T>
 
 Specified by:
 
 zip4 in interface Zippable<T>
 - zipWithIndex
```
default PStackX<org.jooq.lambda.tuple.Tuple2<T,java.lang.Long>> zipWithIndex()
```
 Description copied from interface: Traversable
 Add an index to the current Stream
```
 
 assertEquals(asList(new Tuple2("a", 0L), new Tuple2("b", 1L)), of("a", "b").zipWithIndex().toList());
 
 
```
 Specified by:
 
 zipWithIndex in interface CollectionX<T>
 
 Specified by:
 
 zipWithIndex in interface PersistentCollectionX<T>
 
 Specified by:
 
 zipWithIndex in interface Traversable<T>
 - distinct
```
default PStackX<T> distinct()
```
 Specified by:
 
 distinct in interface CollectionX<T>
 
 Specified by:
 
 distinct in interface PersistentCollectionX<T>
 
 Specified by:
 
 distinct in interface Traversable<T>
 - sorted
```
default PStackX<T> sorted()
```
 Description copied from interface: Traversable
```
 assertThat(ReactiveSeq.of(4,3,6,7)).sorted().toList(),equalTo(Arrays.asList(3,4,6,7))); 
 
```
 Specified by:
 
 sorted in interface CollectionX<T>
 
 Specified by:
 
 sorted in interface PersistentCollectionX<T>
 
 Specified by:
 
 sorted in interface Traversable<T>
 - sorted
```
default PStackX<T> sorted(java.util.Comparator<? super T> c)
```
 Description copied from interface: Traversable
```
 
 	assertThat(ReactiveSeq.of(4,3,6,7).sorted((a,b) -> b-a).toList(),equalTo(Arrays.asList(7,6,4,3)));
 
 
```
 Specified by:
 
 sorted in interface CollectionX<T>
 
 Specified by:
 
 sorted in interface PersistentCollectionX<T>
 
 Specified by:
 
 sorted in interface Traversable<T>
 
 Parameters:
 
 c - Compartor to sort with
 
 Returns:
 
 Sorted Stream
 - skipWhile
```
default PStackX<T> skipWhile(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 SkipWhile drops elements from the Stream while the predicate holds, once the predicte returns true all subsequent elements are included *
```
 
 assertThat(ReactiveSeq.of(4,3,6,7).sorted().skipWhile(i->i<6).toList(),equalTo(Arrays.asList(6,7)));
 
 
```
 Specified by:
 
 skipWhile in interface CollectionX<T>
 
 Specified by:
 
 skipWhile in interface PersistentCollectionX<T>
 
 Specified by:
 
 skipWhile in interface Traversable<T>
 
 Parameters:
 
 p - Predicate to skip while true
 
 Returns:
 
 Stream with elements skipped while predicate holds
 - skipUntil
```
default PStackX<T> skipUntil(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 Drop elements from the Stream until the predicate returns true, after which all elements are included
```
 assertThat(ReactiveSeq.of(4,3,6,7).skipUntil(i->i==6).toList(),equalTo(Arrays.asList(6,7)));
 
```
 Specified by:
 
 skipUntil in interface CollectionX<T>
 
 Specified by:
 
 skipUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 skipUntil in interface Traversable<T>
 
 Parameters:
 
 p - Predicate to skip until true
 
 Returns:
 
 Stream with elements skipped until predicate holds
 - limitWhile
```
default PStackX<T> limitWhile(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 Take elements from the Stream while the predicate holds, once the predicate returns false all subsequent elements are excluded
```
 assertThat(ReactiveSeq.of(4,3,6,7).sorted().limitWhile(i->i<6).toList(),equalTo(Arrays.asList(3,4)));
 
```
 Specified by:
 
 limitWhile in interface CollectionX<T>
 
 Specified by:
 
 limitWhile in interface PersistentCollectionX<T>
 
 Specified by:
 
 limitWhile in interface Traversable<T>
 
 Parameters:
 
 p - Limit while predicate is true
 
 Returns:
 
 Stream with limited elements
 - limitUntil
```
default PStackX<T> limitUntil(java.util.function.Predicate<? super T> p)
```
 Description copied from interface: Traversable
 Take elements from the Stream until the predicate returns true, after which all elements are excluded.
```
 assertThat(ReactiveSeq.of(4,3,6,7).limitUntil(i->i==6).toList(),equalTo(Arrays.asList(4,3))); 
 
```
 Specified by:
 
 limitUntil in interface CollectionX<T>
 
 Specified by:
 
 limitUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 limitUntil in interface Traversable<T>
 
 Parameters:
 
 p - Limit until predicate is true
 
 Returns:
 
 Stream with limited elements
 - intersperse
```
default PStackX<T> intersperse(T value)
```
 Description copied from interface: Traversable
 
 Returns a stream with a given value interspersed between any two values of this stream. // (1, 0, 2, 0, 3, 0, 4) ReactiveSeq.of(1, 2, 3, 4).intersperse(0)
 
 Specified by:
 
 intersperse in interface CollectionX<T>
 
 Specified by:
 
 intersperse in interface PersistentCollectionX<T>
 
 Specified by:
 
 intersperse in interface Traversable<T>
 - shuffle
```
default PStackX<T> shuffle()
```
 Specified by:
 
 shuffle in interface CollectionX<T>
 
 Specified by:
 
 shuffle in interface PersistentCollectionX<T>
 
 Specified by:
 
 shuffle in interface Traversable<T>
 - skipLast
```
default PStackX<T> skipLast(int num)
```
 Description copied from interface: Traversable
 
 assertThat(ReactiveSeq.of(1,2,3,4,5) .skipLast(2) .collect(Collectors.toList()),equalTo(Arrays.asList(1,2,3)));
 
 Specified by:
 
 skipLast in interface CollectionX<T>
 
 Specified by:
 
 skipLast in interface PersistentCollectionX<T>
 
 Specified by:
 
 skipLast in interface Traversable<T>
 
 Returns:
 - limitLast
```
default PStackX<T> limitLast(int num)
```
 Description copied from interface: Traversable
 Limit results to the last x elements in a SequenceM
```
 
 	assertThat(ReactiveSeq.of(1,2,3,4,5)
 							.limitLast(2)
 							.collect(Collectors.toList()),equalTo(Arrays.asList(4,5)));
 
 
 
```
 Specified by:
 
 limitLast in interface CollectionX<T>
 
 Specified by:
 
 limitLast in interface PersistentCollectionX<T>
 
 Specified by:
 
 limitLast in interface Traversable<T>
 
 Parameters:
 
 num - of elements to return (last elements)
 
 Returns:
 
 SequenceM limited to last num elements
 - onEmptySwitch
```
default PStackX<T> onEmptySwitch(java.util.function.Supplier<? extends org.pcollections.PStack<T>> supplier)
```
 Description copied from interface: OnEmptySwitch
 Switch to container created by provided Supplier, if current Container empty
```
 
 ListX.empty().onEmptySwitch(()->ListX.of(1));
 
 
```
 Specified by:
 
 onEmptySwitch in interface OnEmptySwitch<T,org.pcollections.PStack<T>>
 
 Parameters:
 
 supplier - to create replacement container
 
 Returns:
 
 Either this container or if empty, an alternative returned by the provided supplier
 - onEmpty
```
default PStackX<T> onEmpty(T value)
```
 Description copied from interface: OnEmpty
 
 If this Container instance is empty, create a new instance containing the provided value
 
 Specified by:
 
 onEmpty in interface CollectionX<T>
 
 Specified by:
 
 onEmpty in interface OnEmpty<T>
 
 Specified by:
 
 onEmpty in interface PersistentCollectionX<T>
 
 Specified by:
 
 onEmpty in interface Traversable<T>
 
 Returns:
 
 New instance containing value if container is empty, otherwise returns this container
 - onEmptyGet
```
default PStackX<T> onEmptyGet(java.util.function.Supplier<? extends T> supplier)
```
 Description copied from interface: OnEmpty
 
 If this Container instance is empty, create a new instance containing the value returned from the provided Supplier
 
 Specified by:
 
 onEmptyGet in interface CollectionX<T>
 
 Specified by:
 
 onEmptyGet in interface OnEmpty<T>
 
 Specified by:
 
 onEmptyGet in interface PersistentCollectionX<T>
 
 Specified by:
 
 onEmptyGet in interface Traversable<T>
 
 Parameters:
 
 supplier - to determine new value for container
 
 Returns:
 
 New Container with value if this is empty, otherwise this container
 - onEmptyThrow
```
default <X extends java.lang.Throwable> PStackX<T> onEmptyThrow(java.util.function.Supplier<? extends X> supplier)
```
 Description copied from interface: OnEmpty
 
 If this container instance is empty, throw the exception returned by the provided Supplier
 
 Specified by:
 
 onEmptyThrow in interface CollectionX<T>
 
 Specified by:
 
 onEmptyThrow in interface OnEmpty<T>
 
 Specified by:
 
 onEmptyThrow in interface PersistentCollectionX<T>
 
 Specified by:
 
 onEmptyThrow in interface Traversable<T>
 
 Parameters:
 
 supplier - to create exception from
 
 Returns:
 
 Throw exception if empty, otherwise this container
 - shuffle
```
default PStackX<T> shuffle(java.util.Random random)
```
 Specified by:
 
 shuffle in interface CollectionX<T>
 
 Specified by:
 
 shuffle in interface PersistentCollectionX<T>
 
 Specified by:
 
 shuffle in interface Traversable<T>
 - ofType
```
default  PStackX ofType(java.lang.Class<? extends U> type)
```
 Description copied from interface: Filters
 Keep only those elements in a stream that are of a given type.
```
 
 
 // (1, 2, 3) ReactiveSeq.of(1, "a", 2, "b",3).ofType(Integer.class)
 
 
 
```
 Specified by:
 
 ofType in interface Filters<T>
 
 Specified by:
 
 ofType in interface PersistentCollectionX<T>
 - filterNot
```
default PStackX<T> filterNot(java.util.function.Predicate<? super T> fn)
```
 Description copied from interface: Filters
 Remove any elements for which the predicate holds (inverse operation to filter) e.g.
```
 
 
 of(1,2,3).filter(i->i>2);
 
 //[1,2]
 
 
 
```
 Specified by:
 
 filterNot in interface CollectionX<T>
 
 Specified by:
 
 filterNot in interface Filters<T>
 
 Specified by:
 
 filterNot in interface PersistentCollectionX<T>
 
 Parameters:
 
 fn - to filter elements by, retaining matches
 
 Returns:
 
 Filters with elements removed where the predicate does not hold
 - notNull
```
default PStackX<T> notNull()
```
 Description copied from interface: Filters
 Filter elements retaining only values which are not null
```
 
 
 of(1,2,null,4).nonNull();
 
 //[1,2,4]
 
 
 
```
 Specified by:
 
 notNull in interface CollectionX<T>
 
 Specified by:
 
 notNull in interface Filters<T>
 
 Specified by:
 
 notNull in interface PersistentCollectionX<T>
 
 Returns:
 
 Filters with nulls removed
 - removeAllS
```
default PStackX<T> removeAllS(java.util.stream.Stream<? extends T> stream)
```
 Description copied from interface: IterableFilterable
 
 Remove all elements in the supplied Stream from this filterable
 
 Specified by:
 
 removeAllS in interface CollectionX<T>
 
 Specified by:
 
 removeAllS in interface IterableFilterable<T>
 
 Specified by:
 
 removeAllS in interface PersistentCollectionX<T>
 
 Parameters:
 
 stream - of elements to remove
 
 Returns:
 
 Filters with all supplied elements removed
 - removeAllS
```
default PStackX<T> removeAllS(java.lang.Iterable<? extends T> it)
```
 Description copied from interface: IterableFilterable
 
 Remove all elements in the supplied Iterable from this filterable
 
 Specified by:
 
 removeAllS in interface CollectionX<T>
 
 Specified by:
 
 removeAllS in interface IterableFilterable<T>
 
 Specified by:
 
 removeAllS in interface PersistentCollectionX<T>
 
 Parameters:
 
 it - an Iterable of elements to remove
 
 Returns:
 
 Filters with all supplied elements removed
 - removeAllS
```
default PStackX<T> removeAllS(T... values)
```
 Description copied from interface: IterableFilterable
 
 Remove all supplied elements from this filterable
 
 Specified by:
 
 removeAllS in interface CollectionX<T>
 
 Specified by:
 
 removeAllS in interface IterableFilterable<T>
 
 Specified by:
 
 removeAllS in interface PersistentCollectionX<T>
 
 Parameters:
 
 values - to remove
 
 Returns:
 
 Filters with all supplied values removed
 - retainAllS
```
default PStackX<T> retainAllS(java.lang.Iterable<? extends T> it)
```
 Description copied from interface: IterableFilterable
 
 Retain only the supplied elements in the returned Filters
 
 Specified by:
 
 retainAllS in interface CollectionX<T>
 
 Specified by:
 
 retainAllS in interface IterableFilterable<T>
 
 Specified by:
 
 retainAllS in interface PersistentCollectionX<T>
 
 Parameters:
 
 it - Iterable of elements to retain
 
 Returns:
 
 Filters with supplied values retained, and others removed
 - retainAllS
```
default PStackX<T> retainAllS(java.util.stream.Stream<? extends T> seq)
```
 Description copied from interface: IterableFilterable
 
 Retain only the supplied elements in the returned Filters
 
 Specified by:
 
 retainAllS in interface CollectionX<T>
 
 Specified by:
 
 retainAllS in interface IterableFilterable<T>
 
 Specified by:
 
 retainAllS in interface PersistentCollectionX<T>
 
 Parameters:
 
 seq - of elements to retain
 
 Returns:
 
 Filters with supplied values retained, and others removed
 - retainAllS
```
default PStackX<T> retainAllS(T... values)
```
 Description copied from interface: IterableFilterable
 
 Retain only the supplied elements in the returned Filters
 
 Specified by:
 
 retainAllS in interface CollectionX<T>
 
 Specified by:
 
 retainAllS in interface IterableFilterable<T>
 
 Specified by:
 
 retainAllS in interface PersistentCollectionX<T>
 
 Parameters:
 
 values - elements to retain
 
 Returns:
 
 Filters with supplied values retained, and others removed
 - cast
```
default  PStackX cast(java.lang.Class<? extends U> type)
```
 Description copied from interface: Transformable
 
 Cast all elements in a stream to a given type, possibly throwing a ClassCastException. // ClassCastException ReactiveSeq.of(1, "a", 2, "b", 3).cast(Integer.class)
 
 Specified by:
 
 cast in interface CollectionX<T>
 
 Specified by:
 
 cast in interface PersistentCollectionX<T>
 
 Specified by:
 
 cast in interface Transformable<T>
 - grouped
```
default <C extends java.util.Collection<? super T>> PStackX<C> grouped(int size,
 java.util.function.Supplier<C> supplier)
```
 Description copied from interface: Traversable
 Batch elements in a Stream by size into a collection created by the supplied factory
```
 
 assertThat(ReactiveSeq.of(1,1,1,1,1,1)
 .batchBySize(3,()->new TreeSet<>())
 .toList()
 .get(0)
 .size(),is(1));
 
 
```
 Specified by:
 
 grouped in interface CollectionX<T>
 
 Specified by:
 
 grouped in interface PersistentCollectionX<T>
 
 Specified by:
 
 grouped in interface Traversable<T>
 
 Parameters:
 
 size - batch size
 
 supplier - Collection factory
 
 Returns:
 
 SequenceM batched into collection types by size
 - groupedUntil
```
default PStackX<ListX<T>> groupedUntil(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 Create a Traversable batched by List, where each batch is populated until the predicate holds
```
 
 assertThat(ReactiveSeq.of(1,2,3,4,5,6)
 .groupedUntil(i->i%3==0)
 .toList()
 .size(),equalTo(2));
 
 
```
 Specified by:
 
 groupedUntil in interface CollectionX<T>
 
 Specified by:
 
 groupedUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 groupedUntil in interface Traversable<T>
 
 Parameters:
 
 predicate - Batch until predicate holds, transform open next batch
 
 Returns:
 
 SequenceM batched into lists determined by the predicate supplied
 - groupedStatefullyUntil
```
default PStackX<ListX<T>> groupedStatefullyUntil(java.util.function.BiPredicate<ListX<? super T>,? super T> predicate)
```
 Description copied from interface: Traversable
 Create Travesable of Lists where each List is populated while the supplied bipredicate holds. The bipredicate recieves the List from the last window as well as the current value and can choose to aggregate the current value or create a new window
```
 
 assertThat(ReactiveSeq.of(1,2,3,4,5,6)
 .groupedStatefullyUntil((s,i)->s.contains(4) ? true : false)
 .toList().size(),equalTo(5));
 
 
```
 Specified by:
 
 groupedStatefullyUntil in interface CollectionX<T>
 
 Specified by:
 
 groupedStatefullyUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 groupedStatefullyUntil in interface Traversable<T>
 
 Parameters:
 
 predicate - Window while true
 
 Returns:
 
 Traversable windowed while predicate holds
 - groupedWhile
```
default PStackX<ListX<T>> groupedWhile(java.util.function.Predicate<? super T> predicate)
```
 Description copied from interface: Traversable
 Create a Traversable batched by List, where each batch is populated while the predicate holds
```
 
 assertThat(ReactiveSeq.of(1,2,3,4,5,6)
 .groupedWhile(i->i%3!=0)
 .toList().size(),equalTo(2));
 
 
 
```
 Specified by:
 
 groupedWhile in interface CollectionX<T>
 
 Specified by:
 
 groupedWhile in interface PersistentCollectionX<T>
 
 Specified by:
 
 groupedWhile in interface Traversable<T>
 
 Parameters:
 
 predicate - Batch while predicate holds, transform open next batch
 
 Returns:
 
 SequenceM batched into lists determined by the predicate supplied
 - groupedWhile
```
default <C extends java.util.Collection<? super T>> PStackX<C> groupedWhile(java.util.function.Predicate<? super T> predicate,
 java.util.function.Supplier<C> factory)
```
 Description copied from interface: Traversable
 Create a SequenceM batched by a Collection, where each batch is populated while the predicate holds
```
 
 assertThat(ReactiveSeq.of(1,2,3,4,5,6)
 .batchWhile(i->i%3!=0)
 .toList()
 .size(),equalTo(2));
 
 
```
 Specified by:
 
 groupedWhile in interface CollectionX<T>
 
 Specified by:
 
 groupedWhile in interface PersistentCollectionX<T>
 
 Specified by:
 
 groupedWhile in interface Traversable<T>
 
 Parameters:
 
 predicate - Batch while predicate holds, transform open next batch
 
 factory - Collection factory
 
 Returns:
 
 SequenceM batched into collections determined by the predicate supplied
 - groupedUntil
```
default <C extends java.util.Collection<? super T>> PStackX<C> groupedUntil(java.util.function.Predicate<? super T> predicate,
 java.util.function.Supplier<C> factory)
```
 Description copied from interface: Traversable
 Create a ReactiveSeq batched by a Collection, where each batch is populated until the predicate holds
```
 
 ReactiveSeq.of(1,2,3,4,5,6)
 .groupedUntil(i->i%3!=0)
 .toList()
 
 //2
 
 
```
 Specified by:
 
 groupedUntil in interface CollectionX<T>
 
 Specified by:
 
 groupedUntil in interface PersistentCollectionX<T>
 
 Specified by:
 
 groupedUntil in interface Traversable<T>
 
 Parameters:
 
 predicate - Batch until predicate holds, transform open next batch
 
 factory - Collection factory
 
 Returns:
 
 SequenceM batched into collections determined by the predicate supplied
 - retry
```
default <R> PStackX<R> retry(java.util.function.Function<? super T,? extends R> fn)
```
 Description copied from interface: Transformable
 Retry a transformation if it fails. Default settings are to retry up to 7 times, with an doubling backoff period starting @ 2 seconds delay before retry.
```
 
 given(serviceMock.apply(anyInt())).willThrow(
 				new RuntimeException(new SocketException("First")),
 				new RuntimeException(new IOException("Second"))).willReturn(
 				"42");


 		String result = ReactiveSeq.of( 1, 2, 3)
 				.retry(serviceMock)
 				.firstValue();

 		//result = 42
 
 
```
 Specified by:
 
 retry in interface Transformable<T>
 
 Parameters:
 
 fn - Function to retry if fails
 - retry
```
default <R> PStackX<R> retry(java.util.function.Function<? super T,? extends R> fn,
 int retries,
 long delay,
 java.util.concurrent.TimeUnit timeUnit)
```
 Description copied from interface: Transformable
 Retry a transformation if it fails. Retries up to retries times, with an doubling backoff period starting @ delay TimeUnits delay before retry.
```
 
 given(serviceMock.apply(anyInt())).willThrow(
 				new RuntimeException(new SocketException("First")),
 				new RuntimeException(new IOException("Second"))).willReturn(
 				"42");


 		String result = ReactiveSeq.of( 1, 2, 3)
 				.retry(serviceMock, 7, 2, TimeUnit.SECONDS)
 				.firstValue();

 		//result = 42
 
 
```
 Specified by:
 
 retry in interface Transformable<T>
 
 Parameters:
 
 fn - Function to retry if fails
 
 retries - Number of retries
 
 delay - Delay in TimeUnits
 
 timeUnit - TimeUnit to use for delay
 - flatMapS
```
default <R> PStackX<R> flatMapS(java.util.function.Function<? super T,? extends java.util.stream.Stream<? extends R>> fn)
```
 Specified by:
 
 flatMapS in interface CollectionX<T>
 
 Specified by:
 
 flatMapS in interface PersistentCollectionX<T>
 - flatMapP
```
default <R> PStackX<R> flatMapP(java.util.function.Function<? super T,? extends org.reactivestreams.Publisher<? extends R>> fn)
```
 Specified by:
 
 flatMapP in interface CollectionX<T>
 
 Specified by:
 
 flatMapP in interface PersistentCollectionX<T>
 - prependS
```
default PStackX<T> prependS(java.util.stream.Stream<? extends T> stream)
```
 Description copied from interface: Traversable
 Prepend Stream to this ReactiveSeq
```
 
 List<String> result = ReactiveSeq.of(1, 2, 3)
 .prependS(of(100, 200, 300))
 .map(it -> it + "!!")
 .collect(Collectors.toList());

 assertThat(result, equalTo(Arrays.asList("100!!", "200!!", "300!!", "1!!", "2!!", "3!!")));
 
 
```
 Specified by:
 
 prependS in interface PersistentCollectionX<T>
 
 Specified by:
 
 prependS in interface Traversable<T>
 
 Parameters:
 
 stream - to Prepend
 
 Returns:
 
 ReactiveSeq with Stream prepended
 - append
```
default PStackX<T> append(T... values)
```
 Description copied from interface: Traversable
 Append values to the take of this ReactiveSeq
```
 
 List<String> result = ReactiveSeq.of(1, 2, 3).append(100, 200, 300).map(it -> it + "!!").collect(Collectors.toList());

 assertThat(result, equalTo(Arrays.asList("1!!", "2!!", "3!!", "100!!", "200!!", "300!!"))); * 
 
```
 Specified by:
 
 append in interface PersistentCollectionX<T>
 
 Specified by:
 
 append in interface Traversable<T>
 
 Parameters:
 
 values - to append
 
 Returns:
 
 ReactiveSeq with appended values
 - append
```
default PStackX<T> append(T value)
```
 Specified by:
 
 append in interface PersistentCollectionX<T>
 
 Specified by:
 
 append in interface Traversable<T>
 - prepend
```
default PStackX<T> prepend(T value)
```
 Specified by:
 
 prepend in interface PersistentCollectionX<T>
 
 Specified by:
 
 prepend in interface Traversable<T>
 - prepend
```
default PStackX<T> prepend(T... values)
```
 Description copied from interface: Traversable
 Prepend given values to the skip of the Stream
```
 
 List<String> result = 	ReactiveSeq.of(1,2,3)
 									 .prepend(100,200,300)
 										 .map(it ->it+"!!")
 										 .collect(Collectors.toList());

 			assertThat(result,equalTo(Arrays.asList("100!!","200!!","300!!","1!!","2!!","3!!")));
 
```
 Specified by:
 
 prepend in interface PersistentCollectionX<T>
 
 Specified by:
 
 prepend in interface Traversable<T>
 
 Parameters:
 
 values - to prepend
 
 Returns:
 
 ReactiveSeq with values prepended
 - insertAt
```
default PStackX<T> insertAt(int pos,
 T... values)
```
 Description copied from interface: Traversable
 Insert data into a stream at given position
```
 
 List<String> result = ReactiveSeq.of(1, 2, 3).insertAt(1, 100, 200, 300).map(it -> it + "!!").collect(Collectors.toList());

 assertThat(result, equalTo(Arrays.asList("1!!", "100!!", "200!!", "300!!", "2!!", "3!!"))); *
 
 
```
 Specified by:
 
 insertAt in interface PersistentCollectionX<T>
 
 Specified by:
 
 insertAt in interface Traversable<T>
 
 Parameters:
 
 pos - to insert data at
 
 values - to insert
 
 Returns:
 
 Stream with new data inserted
 - deleteBetween
```
default PStackX<T> deleteBetween(int start,
 int end)
```
 Description copied from interface: Traversable
 Delete elements between given indexes in a Stream
```
 
 List<String> result = ReactiveSeq.of(1, 2, 3, 4, 5, 6).deleteBetween(2, 4).map(it -> it + "!!").collect(Collectors.toList());

 assertThat(result, equalTo(Arrays.asList("1!!", "2!!", "5!!", "6!!"))); * 
 
```
 Specified by:
 
 deleteBetween in interface PersistentCollectionX<T>
 
 Specified by:
 
 deleteBetween in interface Traversable<T>
 
 Parameters:
 
 start - index
 
 end - index
 
 Returns:
 
 Stream with elements removed
 - insertAtS
```
default PStackX<T> insertAtS(int pos,
 java.util.stream.Stream<T> stream)
```
 Description copied from interface: Traversable
 Insert a Stream into the middle of this stream at the specified position
```
 
 List<String> result = ReactiveSeq.of(1, 2, 3).insertAtS(1, of(100, 200, 300)).map(it -> it + "!!").collect(Collectors.toList());

 assertThat(result, equalTo(Arrays.asList("1!!", "100!!", "200!!", "300!!", "2!!", "3!!")));
 
 
```
 Specified by:
 
 insertAtS in interface PersistentCollectionX<T>
 
 Specified by:
 
 insertAtS in interface Traversable<T>
 
 Parameters:
 
 pos - to insert Stream at
 
 stream - to insert
 
 Returns:
 
 newly conjoined Traversable
 - recover
```
default PStackX<T> recover(java.util.function.Function<? super java.lang.Throwable,? extends T> fn)
```
 Description copied from interface: Traversable
 Recover from an exception with an alternative value
```
 
 assertThat(ReactiveSeq.of(1,2,3,4)
 						 .map(i->i+2)
 						 .map(u->{throw new RuntimeException();})
 						 .recover(e->"hello")
 						 .firstValue(),equalTo("hello"));
 
 
```
 Specified by:
 
 recover in interface Traversable<T>
 
 Parameters:
 
 fn - Function that accepts a Throwable and returns an alternative value
 
 Returns:
 
 ReactiveSeq that can recover from an Exception
 - recover
```
default <EX extends java.lang.Throwable> PStackX<T> recover(java.lang.Class<EX> exceptionClass,
 java.util.function.Function<? super EX,? extends T> fn)
```
 Description copied from interface: Traversable
 Recover from a particular exception type
```
 
 assertThat(ReactiveSeq.of(1,2,3,4)
 					.map(i->i+2)
 					.map(u->{ExceptionSoftener.throwSoftenedException( new IOException()); return null;})
 					.recover(IOException.class,e->"hello")
 					.firstValue(),equalTo("hello"));

 
 
```
 Specified by:
 
 recover in interface Traversable<T>
 
 Parameters:
 
 exceptionClass - Type to recover from
 
 fn - That accepts an error and returns an alternative value
 
 Returns:
 
 Traversable that can recover from a particular exception
 - plusLoop
```
default PStackX<T> plusLoop(int max,
 java.util.function.IntFunction<T> value)
```
 Specified by:
 
 plusLoop in interface FluentCollectionX<T>
 - plusLoop
```
default PStackX<T> plusLoop(java.util.function.Supplier<java.util.Optional<T>> supplier)
```
 Specified by:
 
 plusLoop in interface FluentCollectionX<T>

Interface PStackX<T>

Nested Class Summary

Nested classes/interfaces inherited from interface cyclops.function.Fn1

Method Summary

Methods inherited from interface com.aol.cyclops2.types.To

Methods inherited from interface org.pcollections.PStack

Methods inherited from interface org.pcollections.PSequence

Methods inherited from interface org.pcollections.PCollection

Methods inherited from interface java.util.List

Methods inherited from interface com.aol.cyclops2.data.collections.extensions.CollectionX

Methods inherited from interface com.aol.cyclops2.types.FoldableTraversable

Methods inherited from interface cyclops.function.Fn1

Methods inherited from interface org.jooq.lambda.function.Function1

Methods inherited from interface java.util.function.Function

Methods inherited from interface com.aol.cyclops2.types.stream.CyclopsCollectable

Methods inherited from interface com.aol.cyclops2.types.Folds

Methods inherited from interface com.aol.cyclops2.types.stream.ConvertableSequence

Methods inherited from interface java.util.Collection

Methods inherited from interface com.aol.cyclops2.hkt.Higher

Methods inherited from interface com.aol.cyclops2.hkt.Convert

Method Detail

widen2

narrowK

liftM

narrow

range

rangeLong

unfold

generate

fill

iterate

of

fromIterator

fromPublisher

fromIterable

fromCollection

empty

singleton

fromStream

materialize

forEach4

forEach4

forEach3

forEach3

forEach2

forEach2

take

drop

toPStackX

coflatMap

combine

unit

unit

unitIterator

emptyUnit

toPStack

plusInOrder

stream

from

monoid

reverse

efficientOpsOn

efficientOpsOff

isEfficientOps

filter

map

flatMap

limit

skip

takeRight

dropRight

takeWhile

dropWhile

takeUntil

dropUntil

trampoline

slice

sorted

minusAll

minus