The implementation class of the set returned by keySet
.
The implementation class of the iterable returned by values
.
The type implementing this traversable
The type implementing this traversable
A class supporting filtered operations.
Test two objects for inequality.
Test two objects for inequality.
true
if !(this == that), false otherwise.
Equivalent to x.hashCode
except for boxed numeric types.
Equivalent to x.hashCode
except for boxed numeric types.
For numerics, it returns a hash value which is consistent
with value equality: if two value type instances compare
as true, then ## will produce the same hash value for each
of them.
a hash value consistent with ==
Add a key/value pair to this map, returning a new map.
Adds two or more elements to this collection and returns a new collection.
Adds a number of elements provided by a traversable object and returns a new collection with the added elements.
Adds a number of elements provided by a traversable object and returns a new collection with the added elements.
the type of the added values
the traversable object consisting of keyvalue pairs.
a new immutable map with the bindings of this map and those from xs
.
[use case] Concatenates this immutable long integer map with the elements of a traversable collection.
Concatenates this immutable long integer map with the elements of a traversable collection.
the element type of the returned collection.
the traversable to append.
a new collection of type That
which contains all elements
of this immutable long integer map followed by all elements of that
.
Concatenates this immutable long integer map with the elements of a traversable collection.
Concatenates this immutable long integer map with the elements of a traversable collection.
the element type of the returned collection.
the class of the returned collection. Where possible, That
is
the same class as the current collection class Repr
, but this
depends on the element type B
being admissible for that class,
which means that an implicit instance of type CanBuildFrom[Repr, B, That]
is found.
the traversable to append.
an implicit value of class CanBuildFrom
which determines
the result class That
from the current representation type Repr
and
and the new element type B
.
a new collection of type That
which contains all elements
of this immutable long integer map followed by all elements of that
.
This overload exists because: for the implementation of ++: we should reuse that of ++ because many collections override it with more efficient versions.
This overload exists because: for the implementation of ++: we should reuse that of ++ because many collections override it with more efficient versions. Since TraversableOnce has no '++' method, we have to implement that directly, but Traversable and down can use the overload.
[use case] Concatenates this immutable long integer map with the elements of a traversable collection.
Concatenates this immutable long integer map with the elements of a traversable collection. It differs from ++ in that the right operand determines the type of the resulting collection rather than the left one.
the element type of the returned collection.
the traversable to append.
a new collection of type That
which contains all elements
of this immutable long integer map followed by all elements of that
.
Concatenates this immutable long integer map with the elements of a traversable collection.
Concatenates this immutable long integer map with the elements of a traversable collection. It differs from ++ in that the right operand determines the type of the resulting collection rather than the left one.
the element type of the returned collection.
the class of the returned collection. Where possible, That
is
the same class as the current collection class Repr
, but this
depends on the element type B
being admissible for that class,
which means that an implicit instance of type CanBuildFrom[Repr, B, That]
is found.
the traversable to append.
an implicit value of class CanBuildFrom
which determines
the result class That
from the current representation type Repr
and
and the new element type B
.
a new collection of type That
which contains all elements
of this immutable long integer map followed by all elements of that
.
[use case] Removes a key from this map, returning a new map.
Removes a key from this map, returning a new map.
the key to be removed
a new map without a binding for key
Removes a key from this map, returning a new map.
Removes a key from this map, returning a new map.
the key to be removed
a new map without a binding for key
Creates a new immutable long integer map from this immutable long integer map with some elements removed.
Creates a new immutable long integer map from this immutable long integer map with some elements removed.
This method takes two or more elements to be removed. Another overloaded variant of this method handles the case where a single element is removed.
the first element to remove.
the second element to remove.
the remaining elements to remove.
a new immutable long integer map that contains all elements of the current immutable long integer map except one less occurrence of each of the given elements.
Creates a new immutable long integer map from this immutable long integer map by removing all elements of another collection.
Creates a new immutable long integer map from this immutable long integer map by removing all elements of another collection.
a new immutable long integer map that contains all elements of the current immutable long integer map
except one less occurrence of each of the elements of elems
.
Applies a binary operator to a start value and all elements of this immutable long integer map, going left to right.
Applies a binary operator to a start value and all elements of this immutable long integer map, going left to right.
Note: /:
is alternate syntax for foldLeft
; z /: xs
is the same as
xs foldLeft z
.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the result type of the binary operator.
the start value.
the binary operator.
the result of inserting op
between consecutive elements of this immutable long integer map,
going left to right with the start value z
on the left:
op(...op(op(z, x,,1,,), x,,2,,), ..., x,,n,,)
where x,,1,,, ..., x,,n,,
are the elements of this immutable long integer map.
A syntactic sugar for out of order folding.
A syntactic sugar for out of order folding. See fold
.
Applies a binary operator to all elements of this immutable long integer map and a start value, going right to left.
Applies a binary operator to all elements of this immutable long integer map and a start value, going right to left.
Note: :\
is alternate syntax for foldRight
; xs :\ z
is the same as
xs foldRight z
.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the result type of the binary operator.
the start value
the binary operator
the result of inserting op
between consecutive elements of this immutable long integer map,
going right to left with the start value z
on the right:
op(x,,1,,, op(x,,2,,, ... op(x,,n,,, z)...))
where x,,1,,, ..., x,,n,,
are the elements of this immutable long integer map.
Test two objects for equality.
Test two objects for equality.
true
if the receiver object is equivalent to the argument; false
otherwise.
Appends all bindings of this map to a string builder using start, end, and separator strings.
Appends all bindings of this map to a string builder using start, end, and separator strings.
The written text begins with the string start
and ends with the string
end
. Inside, the string representations of all bindings of this map
in the form of key > value
are separated by the string sep
.
the builder to which strings are appended.
the starting string.
the separator string.
the ending string.
the string builder b
to which elements were appended.
Appends all elements of this immutable long integer map to a string builder.
Appends all elements of this immutable long integer map to a string builder.
The written text consists of the string representations (w.r.t. the method
toString
) of all elements of this immutable long integer map without any separator string.
the string builder to which elements are appended.
the string builder b
to which elements were appended.
Appends all elements of this immutable long integer map to a string builder using a separator string.
Appends all elements of this immutable long integer map to a string builder using a separator
string. The written text consists of the string representations (w.r.t.
the method toString
) of all elements of this immutable long integer map, separated by the
string sep
.
the string builder to which elements are appended.
the separator string.
the string builder b
to which elements were appended.
Aggregates the results of applying an operator to subsequent elements.
Aggregates the results of applying an operator to subsequent elements.
This is a more general form of fold
and reduce
. It has similar semantics, but does
not require the result to be a supertype of the element type. It traverses the elements in
different partitions sequentially, using seqop
to update the result, and then
applies combop
to results from different partitions. The implementation of this
operation may operate on an arbitrary number of collection partitions, so combop
may be invoked arbitrary number of times.
For example, one might want to process some elements and then produce a Set
. In this
case, seqop
would process an element and append it to the list, while combop
would concatenate two lists from different partitions together. The initial value
z
would be an empty set.
pc.aggregate(Set[Int]())(_ += process(_), _ ++ _)
Another example is calculating geometric mean from a collection of doubles (one would typically require big doubles for this).
the initial value for the accumulated result of the partition  this
will typically be the neutral element for the seqop
operator (e.g.
Nil
for list concatenation or 0
for summation)
an operator used to accumulate results within a partition
an associative operator used to combine results from different partitions
Composes this partial function with a transformation function that gets applied to results of this partial function.
Composes this partial function with a transformation function that gets applied to results of this partial function.
the result type of the transformation function.
the transformation function
a partial function with the same domain as this partial function, which maps
arguments x
to k(this(x))
.
Retrieves the value which is associated with the given key.
Retrieves the value which is associated with the given key. This
method invokes the default
method of the map if there is no mapping
from the given key to a value. Unless overridden, the default
method throws a
NoSuchElementException
.
the key
the value associated with the given key, or the result of the
map's default
method, if none exists.
Cast the receiver object to be of type T0
.
Cast the receiver object to be of type T0
.
Note that the success of a cast at runtime is modulo Scala's erasure semantics.
Therefore the expression 1.asInstanceOf[String]
will throw a ClassCastException
at
runtime, while the expression List(1).asInstanceOf[List[String]]
will not.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the requested type.
the receiver object.
Method called from equality methods, so that userdefined subclasses can refuse to be equal to other collections of the same kind.
Method called from equality methods, so that userdefined subclasses can refuse to be equal to other collections of the same kind.
The object with which this immutable long integer map should be compared
true
, if this immutable long integer map can possibly equal that
, false
otherwise. The test
takes into consideration only the runtime types of objects but ignores their elements.
Create a copy of the receiver object.
[use case] Builds a new collection by applying a partial function to all elements of this immutable long integer map on which the function is defined.
Builds a new collection by applying a partial function to all elements of this immutable long integer map on which the function is defined.
the element type of the returned collection.
the partial function which filters and maps the immutable long integer map.
a new collection of type That
resulting from applying the partial function
pf
to each element on which it is defined and collecting the results.
The order of the elements is preserved.
Builds a new collection by applying a partial function to all elements of this immutable long integer map on which the function is defined.
Builds a new collection by applying a partial function to all elements of this immutable long integer map on which the function is defined.
the element type of the returned collection.
the class of the returned collection. Where possible, That
is
the same class as the current collection class Repr
, but this
depends on the element type B
being admissible for that class,
which means that an implicit instance of type CanBuildFrom[Repr, B, That]
is found.
the partial function which filters and maps the immutable long integer map.
an implicit value of class CanBuildFrom
which determines
the result class That
from the current representation type Repr
and
and the new element type B
.
a new collection of type That
resulting from applying the partial function
pf
to each element on which it is defined and collecting the results.
The order of the elements is preserved.
Finds the first element of the immutable long integer map for which the given partial function is defined, and applies the partial function to it.
Finds the first element of the immutable long integer map for which the given partial function is defined, and applies the partial function to it.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the partial function
an option value containing pf applied to the first
value for which it is defined, or None
if none exists.
Seq("a", 1, 5L).collectFirst({ case x: Int => x*10 }) = Some(10)
The factory companion object that builds instances of class immutable.
The factory companion object that builds instances of class immutable.LongMap.
(or its Iterable
superclass where class immutable.LongMap is not a Seq
.)
Composes two instances of Function1 in a new Function1, with this function applied last.
Composes two instances of Function1 in a new Function1, with this function applied last.
the type to which function g
can be applied
a function A => T1
a new function f
such that f(x) == apply(g(x))
Tests whether this map contains a binding for a key.
Tests whether this map contains a binding for a key.
the key
true
if there is a binding for key
in this map, false
otherwise.
[use case] Copies elements of this immutable long integer map to an array.
Copies elements of this immutable long integer map to an array.
Fills the given array xs
with at most len
elements of
this immutable long integer map, starting at position start
.
Copying will stop once either the end of the current immutable long integer map is reached,
or the end of the array is reached, or len
elements have been copied.
the array to fill.
the starting index.
the maximal number of elements to copy.
Copies elements of this immutable long integer map to an array.
Copies elements of this immutable long integer map to an array.
Fills the given array xs
with at most len
elements of
this immutable long integer map, starting at position start
.
Copying will stop once either the end of the current immutable long integer map is reached,
or the end of the array is reached, or len
elements have been copied.
the type of the elements of the array.
the array to fill.
the starting index.
the maximal number of elements to copy.
[use case] Copies values of this immutable long integer map to an array.
Copies values of this immutable long integer map to an array.
Fills the given array xs
with values of this immutable long integer map.
Copying will stop once either the end of the current immutable long integer map is reached,
or the end of the array is reached.
the array to fill.
Copies values of this immutable long integer map to an array.
Copies values of this immutable long integer map to an array.
Fills the given array xs
with values of this immutable long integer map.
Copying will stop once either the end of the current immutable long integer map is reached,
or the end of the array is reached.
the type of the elements of the array.
the array to fill.
[use case] Copies values of this immutable long integer map to an array.
Copies values of this immutable long integer map to an array.
Fills the given array xs
with values of this immutable long integer map, beginning at index start
.
Copying will stop once either the end of the current immutable long integer map is reached,
or the end of the array is reached.
the array to fill.
the starting index.
Copies values of this immutable long integer map to an array.
Copies values of this immutable long integer map to an array.
Fills the given array xs
with values of this immutable long integer map, beginning at index start
.
Copying will stop once either the end of the current immutable long integer map is reached,
or the end of the array is reached.
the type of the elements of the array.
the array to fill.
the starting index.
Copies all elements of this immutable long integer map to a buffer.
Copies all elements of this immutable long integer map to a buffer.
The buffer to which elements are copied.
Counts the number of elements in the immutable long integer map which satisfy a predicate.
Counts the number of elements in the immutable long integer map which satisfy a predicate.
the predicate used to test elements.
the number of elements satisfying the predicate p
.
Defines the default value computation for the map, returned when a key is not found The method implemented here throws an exception, but it might be overridden in subclasses.
Defines the default value computation for the map, returned when a key is not found The method implemented here throws an exception, but it might be overridden in subclasses.
the given key value for which a binding is missing.
Selects all elements except first n ones.
Selects all elements except first n ones.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the number of elements to drop from this immutable long integer map.
a immutable long integer map consisting of all elements of this immutable long integer map except the first n
ones, or else the
empty immutable long integer map, if this immutable long integer map has less than n
elements.
Selects all elements except last n ones.
Selects all elements except last n ones.
Note: might return different results for different runs, unless the underlying collection type is ordered.
The number of elements to take
a immutable long integer map consisting of all elements of this immutable long integer map except the last n
ones, or else the
empty immutable long integer map, if this immutable long integer map has less than n
elements.
Drops longest prefix of elements that satisfy a predicate.
Drops longest prefix of elements that satisfy a predicate.
Note: might return different results for different runs, unless the underlying collection type is ordered.
The predicate used to test elements.
the longest suffix of this immutable long integer map whose first element
does not satisfy the predicate p
.
The empty map of the same type as this map
Tests whether the argument (arg0
) is a reference to the receiver object (this
).
Tests whether the argument (arg0
) is a reference to the receiver object (this
).
The eq
method implements an equivalence relation on
nonnull instances of AnyRef
, and has three additional properties:
x
and y
of type AnyRef
, multiple invocations of
x.eq(y)
consistently returns true
or consistently returns false
.x
of type AnyRef
, x.eq(null)
and null.eq(x)
returns false
.null.eq(null)
returns true
. When overriding the equals
or hashCode
methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2
), they
should be equal to each other (o1 == o2
) and they should hash to the same value (o1.hashCode == o2.hashCode
).
true
if the argument is a reference to the receiver object; false
otherwise.
Compares two maps structurally; i.
Tests whether a predicate holds for some of the elements of this immutable long integer map.
Tests whether a predicate holds for some of the elements of this immutable long integer map.
the predicate used to test elements.
true
if the given predicate p
holds for some of the
elements of this immutable long integer map, otherwise false
.
Selects all elements of this immutable long integer map which satisfy a predicate.
Selects all elements of this immutable long integer map which satisfy a predicate.
a new immutable long integer map consisting of all elements of this immutable long integer map that satisfy the given
predicate p
. The order of the elements is preserved.
Filters this map by retaining only keys satisfying a predicate.
Filters this map by retaining only keys satisfying a predicate.
the predicate used to test keys
an immutable map consisting only of those key value pairs of this map where the key satisfies
the predicate p
. The resulting map wraps the original map without copying any elements.
Returns a new map with all key/value pairs for which the predicate
p
returns true
.
Returns a new map with all key/value pairs for which the predicate
p
returns true
.
Note: This method works by successively removing elements fro which the
predicate is false from this set.
If removal is slow, or you expect that most elements of the set
will be removed, you might consider using filter
with a negated predicate instead.
A predicate over keyvalue pairs
A new map containing elements not satisfying the predicate.
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize
method is invoked, as
well as the interaction between finalize
and nonlocal returns
and exceptions, are all platform dependent.
Finds the first element of the immutable long integer map satisfying a predicate, if any.
Finds the first element of the immutable long integer map satisfying a predicate, if any.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the predicate used to test elements.
an option value containing the first element in the immutable long integer map
that satisfies p
, or None
if none exists.
[use case] Builds a new collection by applying a function to all elements of this immutable long integer map and concatenating the results.
Builds a new collection by applying a function to all elements of this immutable long integer map and concatenating the results.
the element type of the returned collection.
the function to apply to each element.
a new collection of type That
resulting from applying the given collectionvalued function
f
to each element of this immutable long integer map and concatenating the results.
Builds a new collection by applying a function to all elements of this immutable long integer map and concatenating the results.
Builds a new collection by applying a function to all elements of this immutable long integer map and concatenating the results.
the element type of the returned collection.
the class of the returned collection. Where possible, That
is
the same class as the current collection class Repr
, but this
depends on the element type B
being admissible for that class,
which means that an implicit instance of type CanBuildFrom[Repr, B, That]
is found.
the function to apply to each element.
an implicit value of class CanBuildFrom
which determines
the result class That
from the current representation type Repr
and
and the new element type B
.
a new collection of type That
resulting from applying the given collectionvalued function
f
to each element of this immutable long integer map and concatenating the results.
[use case] Converts this immutable long integer map of traversable collections into a immutable long integer map in which all element collections are concatenated.
Converts this immutable long integer map of traversable collections into a immutable long integer map in which all element collections are concatenated.
the type of the elements of each traversable collection.
a new immutable long integer map resulting from concatenating all element immutable long integer maps.
Converts this immutable long integer map of traversable collections into a immutable long integer map in which all element collections are concatenated.
Converts this immutable long integer map of traversable collections into a immutable long integer map in which all element collections are concatenated.
the type of the elements of each traversable collection.
an implicit conversion which asserts that the element
type of this immutable long integer map is a Traversable
.
a new immutable long integer map resulting from concatenating all element immutable long integer maps.
Folds the elements of this sequence using the specified associative binary operator.
Folds the elements of this sequence using the specified associative binary operator. The order in which the elements are reduced is unspecified and may be nondeterministic.
Note this method has a different signature than the foldLeft
and foldRight
methods of the trait Traversable
.
The result of folding may only be a supertype of this parallel collection's
type parameter T
.
a neutral element for the fold operation, it may be added to the result
an arbitrary number of times, not changing the result (e.g. Nil
for list concatenation,
0 for addition, or 1 for multiplication)
a binary operator that must be associative
the result of applying fold operator op
between all the elements and z
Applies a binary operator to a start value and all elements of this immutable long integer map, going left to right.
Applies a binary operator to a start value and all elements of this immutable long integer map, going left to right.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the result type of the binary operator.
the start value.
the binary operator.
the result of inserting op
between consecutive elements of this immutable long integer map,
going left to right with the start value z
on the left:
op(...op(z, x,,1,,), x,,2,,, ..., x,,n,,)
where x,,1,,, ..., x,,n,,
are the elements of this immutable long integer map.
Applies a binary operator to all elements of this immutable long integer map and a start value, going right to left.
Applies a binary operator to all elements of this immutable long integer map and a start value, going right to left.
Note: might return different results for different runs, unless the underlying collection type is ordered. or the operator is associative and commutative.
the result type of the binary operator.
the start value.
the binary operator.
the result of inserting op
between consecutive elements of this immutable long integer map,
going right to left with the start value z
on the right:
op(x,,1,,, op(x,,2,,, ... op(x,,n,,, z)...))
where x,,1,,, ..., x,,n,,
are the elements of this immutable long integer map.
Tests whether a predicate holds for all elements of this immutable long integer map.
Tests whether a predicate holds for all elements of this immutable long integer map.
the predicate used to test elements.
true
if the given predicate p
holds for all elements
of this immutable long integer map, otherwise false
.
Loops over the key, value pairs of the map in unsigned order of the keys.
Loops over the key, value pairs of the map in unsigned order of the keys.
the type parameter describing the result of function f
.
This result will always be ignored. Typically U
is Unit
,
but this is not necessary.
the function that is applied for its sideeffect to every element.
The result of function f
is discarded.
Loop over the keys of the map.
Loop over the keys of the map. The same as keys.foreach(f), but may be more efficient.
The loop body
Loop over the keys of the map.
Loop over the keys of the map. The same as keys.foreach(f), but may be more efficient.
The loop body
The generic builder that builds instances of immutable.
The generic builder that builds instances of immutable.LongMap at arbitrary element types.
Optionally returns the value associated with a key.
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
[use case] Returns the value associated with a key, or a default value if the key is not contained in the map.
Returns the value associated with a key, or a default value if the key is not contained in the map.
the key.
a computation that yields a default value in case no binding for key
is
found in the map.
the value associated with key
if it exists,
otherwise the result of the default
computation.
Returns the value associated with a key, or a default value if the key is not contained in the map.
Returns the value associated with a key, or a default value if the key is not contained in the map.
the key.
a computation that yields a default value in case no binding for key
is
found in the map.
the value associated with key
if it exists,
otherwise the result of the default
computation.
Partitions this immutable long integer map into a map of immutable long integer maps according to some discriminator function.
Partitions this immutable long integer map into a map of immutable long integer maps according to some discriminator function.
Note: this method is not reimplemented by views. This means when applied to a view it will always force the view and return a new immutable long integer map.
the type of keys returned by the discriminator function.
the discriminator function.
A map from keys to immutable long integer maps such that the following invariant holds:
(xs partition f)(k) = xs filter (x => f(x) == k)
That is, every key k
is bound to a immutable long integer map of those elements x
for which f(x)
equals k
.
Partitions elements in fixed size immutable long integer maps.
Partitions elements in fixed size immutable long integer maps.
the number of elements per group
An iterator producing immutable long integer maps of size size
, except the
last will be truncated if the elements don't divide evenly.
Iterator#grouped
Tests whether this immutable long integer map is known to have a finite size.
Tests whether this immutable long integer map is known to have a finite size.
All strict collections are known to have finite size. For a nonstrict collection
such as Stream
, the predicate returns true
if all elements have been computed.
It returns false
if the stream is not yet evaluated to the end.
Note: many collection methods will not work on collections of infinite sizes.
true
if this collection is known to have finite size, false
otherwise.
The hashCode method for reference types.
Selects the first element of this immutable long integer map.
Selects the first element of this immutable long integer map.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the first element of this immutable long integer map.
Optionally selects the first element.
Optionally selects the first element.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the first element of this immutable long integer map if it is nonempty, None
if it is empty.
Selects all elements except the last.
Selects all elements except the last.
Note: might return different results for different runs, unless the underlying collection type is ordered.
a immutable long integer map consisting of all elements of this immutable long integer map except the last one.
Iterates over the inits of this immutable long integer map.
Iterates over the inits of this immutable long integer map. The first value will be this
immutable long integer map and the final one will be an empty immutable long integer map, with the intervening
values the results of successive applications of init
.
an iterator over all the inits of this immutable long integer map
List(1,2,3).inits = Iterator(List(1,2,3), List(1,2), List(1), Nil)
Left biased intersection.
Left biased intersection. Returns the map that has all the same mappings as this but only for keys which are present in the other map.
The type of values in that
.
The map to intersect with.
A map with all the keys both in this
and that
, mapped to corresponding values from this
.
Forms the intersection of these two maps with a combining function.
Forms the intersection of these two maps with a combining function. The resulting map is a map that has only keys present in both maps and has values produced from the original mappings by combining them with f.
The type of values in that
.
The type of values in the resulting LongMap
.
The map to intersect with.
The combining function.
Intersection of this
and that
, with values for identical keys produced by function f
.
Tests whether this map contains a binding for a key.
Tests whether this map contains a binding for a key. This method,
which implements an abstract method of trait PartialFunction
,
is equivalent to contains
.
the key
true
if there is a binding for key
in this map, false
otherwise.
Tests whether the map is empty.
Tests whether the map is empty.
true
if the map does not contain any key/value binding, false
otherwise.
Test whether the dynamic type of the receiver object is T0
.
Test whether the dynamic type of the receiver object is T0
.
Note that the result of the test is modulo Scala's erasure semantics.
Therefore the expression 1.isInstanceOf[String]
will return false
, while the
expression List(1).isInstanceOf[List[String]]
will return true
.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the specified type.
true
if the receiver object is an instance of erasure of type T0
; false
otherwise.
Tests whether this immutable long integer map can be repeatedly traversed.
Tests whether this immutable long integer map can be repeatedly traversed.
true
Iterator over key, value pairs of the map in unsigned order of the keys.
Iterator over key, value pairs of the map in unsigned order of the keys.
an iterator over pairs of long keys and corresponding values.
Collects all keys of this map in a set.
Creates an iterator for all keys.
Creates an iterator for all keys.
an iterator over all keys.
"As of 2.8, keys returns Iterable[A] rather than Iterator[A]."
Creates an iterator for all keys.
Selects the last element.
Selects the last element.
Note: might return different results for different runs, unless the underlying collection type is ordered.
The last element of this immutable long integer map.
Optionally selects the last element.
Optionally selects the last element.
Note: might return different results for different runs, unless the underlying collection type is ordered.
the last element of this immutable long integer map$ if it is nonempty, None
if it is empty.
Turns this partial function into an plain function returning an Option
result.
Turns this partial function into an plain function returning an Option
result.
a function that takes an argument x
to Some(this(x))
if this
is defined for x
, and to None
otherwise.
Function.unlift
[use case] Builds a new collection by applying a function to all elements of this immutable long integer map.
Builds a new collection by applying a function to all elements of this immutable long integer map.
the element type of the returned collection.
the function to apply to each element.
a new collection of type That
resulting from applying the given function
f
to each element of this immutable long integer map and collecting the results.
Builds a new collection by applying a function to all elements of this immutable long integer map.
Builds a new collection by applying a function to all elements of this immutable long integer map.
the element type of the returned collection.
the class of the returned collection. Where possible, That
is
the same class as the current collection class Repr
, but this
depends on the element type B
being admissible for that class,
which means that an implicit instance of type CanBuildFrom[Repr, B, That]
is found.
the function to apply to each element.
an implicit value of class CanBuildFrom
which determines
the result class That
from the current representation type Repr
and
and the new element type B
.
a new collection of type That
resulting from applying the given function
f
to each element of this immutable long integer map and collecting the results.
Transforms this map by applying a function to every retrieved value.
[use case] Finds the largest element.
Finds the largest element.
the largest element of this immutable long integer map with respect to the ordering cmp
.
Finds the largest element.
Finds the largest element.
The type over which the ordering is defined.
An ordering to be used for comparing elements.
the largest element of this immutable long integer map with respect to the ordering cmp
.
[use case] Finds the smallest element.
Finds the smallest element.
the smallest element of this immutable long integer map with respect to the ordering cmp
.
Finds the smallest element.
Finds the smallest element.
The type over which the ordering is defined.
An ordering to be used for comparing elements.
the smallest element of this immutable long integer map with respect to the ordering cmp
.
Displays all elements of this immutable long integer map in a string.
Displays all elements of this immutable long integer map in a string.
a string representation of this immutable long integer map. In the resulting string
the string representations (w.r.t. the method toString
)
of all elements of this immutable long integer map follow each other without any
separator string.
Displays all elements of this immutable long integer map in a string using a separator string.
Displays all elements of this immutable long integer map in a string using a separator string.
the separator string.
a string representation of this immutable long integer map. In the resulting string
the string representations (w.r.t. the method toString
)
of all elements of this immutable long integer map are separated by the string sep
.
List(1, 2, 3).mkString("") = "123"
Displays all elements of this immutable long integer map in a string using start, end, and separator strings.
Displays all elements of this immutable long integer map in a string using start, end, and separator strings.
the starting string.
the separator string.
the ending string.
a string representation of this immutable long integer map. The resulting string
begins with the string start
and ends with the string
end
. Inside, the string representations (w.r.t. the method
toString
) of all elements of this immutable long integer map are separated by
the string sep
.
List(1, 2, 3).mkString("(", "; ", ")") = "(1; 2; 3)"
A combined transform and filter function.
A combined transform and filter function. Returns an LongMap such that for each (key, value) mapping
in this map, if f(key, value) == None the map contains no mapping for key, and if f(key, value)
S
The type of the values in the resulting
LongMap
.
f
The transforming function.
returns
The modified map.
def
ne
(arg0: AnyRef): Boolean
Equivalent to !(this eq that)
.
Equivalent to !(this eq that)
.
 returns
true
if the argument is not a reference to the receiver object; false
otherwise.
 Attributes
 final
 Definition Classes
 AnyRef
def
newBuilder
: Builder[(Long, T), LongMap[T]]
A common implementation of newBuilder
for all maps in terms of empty
.
A common implementation of newBuilder
for all maps in terms of empty
.
Overridden for mutable maps in mutable.MapLike
.
 Attributes
 protected[this]
 Definition Classes
 MapLike → TraversableLike → HasNewBuilder
def
nonEmpty
: Boolean
Tests whether the immutable long integer map is not empty.
Tests whether the immutable long integer map is not empty.
 returns
true
if the immutable long integer map contains at least one element, false
otherwise.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
notify
(): Unit
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
 Attributes
 final
 Definition Classes
 AnyRef
def
notifyAll
(): Unit
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
 Attributes
 final
 Definition Classes
 AnyRef
def
orElse
[A1 <: Long, B1 >: T]
(that: PartialFunction[A1, B1]): PartialFunction[A1, B1]
Composes this partial function with a fallback partial function which gets applied where this partial function
is not defined.
Composes this partial function with a fallback partial function which gets applied where this partial function
is not defined.
 A1
the argument type of the fallback function
 B1
the result type of the fallback function
 that
the fallback function
 returns
a partial function which has as domain the union of the domains
of this partial function and that
. The resulting partial function
takes x
to this(x)
where this
is defined, and to that(x)
where it is not.
 Definition Classes
 PartialFunction
def
par
: ParMap[Long, T]
Returns a parallel implementation of this collection.
Returns a parallel implementation of this collection.
For most collection types, this method creates a new parallel collection by copying
all the elements. For these collection, par
takes linear time. Mutable collections
in this category do not produce a mutable parallel collection that has the same
underlying dataset, so changes in one collection will not be reflected in the other one.
Specific collections (e.g. ParArray
or mutable.ParHashMap
) override this default
behaviour by creating a parallel collection which shares the same underlying dataset.
For these collections, par
takes constant or sublinear time.
All parallel collections return a reference to themselves.
 returns
a parallel implementation of this collection
 Definition Classes
 Parallelizable
def
parCombiner
: Combiner[(Long, T), ParMap[Long, T]]
The default par
implementation uses the combiner provided by this method
to create a new parallel collection.
The default par
implementation uses the combiner provided by this method
to create a new parallel collection.
 returns
a combiner for the parallel collection of type ParRepr
 Attributes
 protected[this]
 Definition Classes
 MapLike → MapLike → TraversableLike → Parallelizable
def
partition
(p: ((Long, T)) ⇒ Boolean): (LongMap[T], LongMap[T])
Partitions this immutable long integer map in two immutable long integer maps according to a predicate.
Partitions this immutable long integer map in two immutable long integer maps according to a predicate.
 p
the predicate on which to partition.
 returns
a pair of immutable long integer maps: the first immutable long integer map consists of all elements that
satisfy the predicate p
and the second immutable long integer map consists of all elements
that don't. The relative order of the elements in the resulting immutable long integer maps
is the same as in the original immutable long integer map.
 Definition Classes
 TraversableLike → GenTraversableLike
def
product
: (Long, T)
[use case] Multiplies up the elements of this collection.
[use case] Multiplies up the elements of this collection.
 returns
the product of all elements of this immutable long integer map with respect to the *
operator in num
.
 Attributes
 abstract
 Definition Classes
 GenTraversableOnce
def
product
[B >: (Long, T)]
(implicit num: Numeric[B]): B
Multiplies up the elements of this collection.
Multiplies up the elements of this collection.
 B
the result type of the *
operator.
 num
an implicit parameter defining a set of numeric operations
which includes the *
operator to be used in forming the product.
 returns
the product of all elements of this immutable long integer map with respect to the *
operator in num
.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
reduce
[A1 >: (Long, T)]
(op: (A1, A1) ⇒ A1): A1
Reduces the elements of this sequence using the specified associative binary operator.
Reduces the elements of this sequence using the specified associative binary operator.
The order in which operations are performed on elements is unspecified and may be nondeterministic.
Note this method has a different signature than the reduceLeft
and reduceRight
methods of the trait Traversable
.
The result of reducing may only be a supertype of this parallel collection's
type parameter T
.
 op
A binary operator that must be associative.
 returns
The result of applying reduce operator op
between all the elements if the collection is nonempty.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
reduceLeft
[B >: (Long, T)]
(op: (B, (Long, T)) ⇒ B): B
 Definition Classes
 TraversableOnce
def
reduceLeftOption
[B >: (Long, T)]
(op: (B, (Long, T)) ⇒ B): Option[B]
Optionally applies a binary operator to all elements of this immutable long integer map, going left to right.
Optionally applies a binary operator to all elements of this immutable long integer map, going left to right.
Note: might return different results for different runs, unless the underlying collection type is ordered.
or the operator is associative and commutative.
 B
the result type of the binary operator.
 op
the binary operator.
 returns
an option value containing the result of reduceLeft(op)
is this immutable long integer map is nonempty,
None
otherwise.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
reduceOption
[A1 >: (Long, T)]
(op: (A1, A1) ⇒ A1): Option[A1]
Optionally reduces the elements of this sequence using the specified associative binary operator.
Optionally reduces the elements of this sequence using the specified associative binary operator.
The order in which operations are performed on elements is unspecified and may be nondeterministic.
Note this method has a different signature than the reduceLeftOption
and reduceRightOption
methods of the trait Traversable
.
The result of reducing may only be a supertype of this parallel collection's
type parameter T
.
 op
A binary operator that must be associative.
 returns
An option value containing result of applying reduce operator op
between all
the elements if the collection is nonempty, and None
otherwise.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
reduceRight
[B >: (Long, T)]
(op: ((Long, T), B) ⇒ B): B
Applies a binary operator to all elements of this immutable long integer map, going right to left.
Applies a binary operator to all elements of this immutable long integer map, going right to left.
Note: might return different results for different runs, unless the underlying collection type is ordered.
or the operator is associative and commutative.
 B
the result type of the binary operator.
 op
the binary operator.
 returns
the result of inserting op
between consecutive elements of this immutable long integer map,
going right to left:
op(x,,1,,, op(x,,2,,, ..., op(x,,n1,,, x,,n,,)...))
where x,,1,,, ..., x,,n,,
are the elements of this immutable long integer map.
 Definition Classes
 IterableLike → TraversableOnce → GenTraversableOnce
def
reduceRightOption
[B >: (Long, T)]
(op: ((Long, T), B) ⇒ B): Option[B]
Optionally applies a binary operator to all elements of this immutable long integer map, going
right to left.
Optionally applies a binary operator to all elements of this immutable long integer map, going
right to left.
Note: might return different results for different runs, unless the underlying collection type is ordered.
or the operator is associative and commutative.
 B
the result type of the binary operator.
 op
the binary operator.
 returns
an option value containing the result of reduceRight(op)
is this immutable long integer map is nonempty,
None
otherwise.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
repr
: LongMap[T]
The collection of type immutable long integer map underlying this TraversableLike
object.
The collection of type immutable long integer map underlying this TraversableLike
object.
By default this is implemented as the TraversableLike
object itself,
but this can be overridden.
 Definition Classes
 TraversableLike → GenTraversableLike
def
reversed
: List[(Long, T)]
 Attributes
 protected[this]
 Definition Classes
 TraversableOnce
def
sameElements
[B >: (Long, T)]
(that: Iterable[B]): Boolean
 Definition Classes
 IterableLike
 Annotations

@bridge()
def
sameElements
(that: GenIterable[(Long, T)]): Boolean
[use case] Checks if the other iterable collection contains the same elements in the same order as this immutable long integer map.
[use case] Checks if the other iterable collection contains the same elements in the same order as this immutable long integer map.
 that
the collection to compare with.
 returns
true
, if both collections contain the same elements in the same order, false
otherwise.
 Attributes
 abstract
 Definition Classes
 GenIterableLike
def
sameElements
[B >: (Long, T)]
(that: GenIterable[B]): Boolean
Checks if the other iterable collection contains the same elements in the same order as this immutable long integer map.
Checks if the other iterable collection contains the same elements in the same order as this immutable long integer map.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 B
the type of the elements of collection that
.
 that
the collection to compare with.
 returns
true
, if both collections contain the same elements in the same order, false
otherwise.
 Definition Classes
 IterableLike → GenIterableLike
def
scan
[B >: (Long, T), That]
(z: B)(op: (B, B) ⇒ B)(implicit cbf: CanBuildFrom[LongMap[T], B, That]): That
Computes a prefix scan of the elements of the collection.
Computes a prefix scan of the elements of the collection.
Note: The neutral element z
may be applied more than once.
 B
element type of the resulting collection
 That
type of the resulting collection
 z
neutral element for the operator op
 op
the associative operator for the scan
 cbf
combiner factory which provides a combiner
 returns
a new immutable long integer map containing the prefix scan of the elements in this immutable long integer map
 Definition Classes
 TraversableLike → GenTraversableLike
def
scanLeft
[B, That]
(z: B)(op: (B, (Long, T)) ⇒ B)(implicit bf: CanBuildFrom[LongMap[T], B, That]): That
Produces a collection containing cummulative results of applying the
operator going left to right.
Produces a collection containing cummulative results of applying the
operator going left to right.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 B
the type of the elements in the resulting collection
 That
the actual type of the resulting collection
 z
the initial value
 op
the binary operator applied to the intermediate result and the element
 bf
an implicit value of class CanBuildFrom
which determines
the result class That
from the current representation type Repr
and
and the new element type B
.
 returns
collection with intermediate results
 Definition Classes
 TraversableLike → GenTraversableLike
def
scanRight
[B, That]
(z: B)(op: ((Long, T), B) ⇒ B)(implicit bf: CanBuildFrom[LongMap[T], B, That]): That
Produces a collection containing cummulative results of applying the operator going right to left.
Produces a collection containing cummulative results of applying the operator going right to left.
The head of the collection is the last cummulative result.
Note: might return different results for different runs, unless the underlying collection type is ordered.
Example:
List(1, 2, 3, 4).scanRight(0)(_ + _) == List(10, 9, 7, 4, 0)
 B
the type of the elements in the resulting collection
 That
the actual type of the resulting collection
 z
the initial value
 op
the binary operator applied to the intermediate result and the element
 bf
an implicit value of class CanBuildFrom
which determines
the result class That
from the current representation type Repr
and
and the new element type B
.
 returns
collection with intermediate results
 Definition Classes
 TraversableLike → GenTraversableLike
 Annotations

@migration
 Migration
"This scanRight definition has changed in 2.9.\n" +
"The previous behavior can be reproduced with scanRight.reverse."
def
seq
: Map[Long, T]
A version of this collection with all
of the operations implemented sequentially (i.
A version of this collection with all
of the operations implemented sequentially (i.e. in a singlethreaded manner).
This method returns a reference to this collection. In parallel collections,
it is redefined to return a sequential implementation of this collection. In
both cases, it has O(1) complexity.
 returns
a sequential view of the collection.
 Definition Classes
 Map → Map → GenMap → GenMapLike → Iterable → Iterable → GenIterable → Traversable → Traversable → GenTraversable → Parallelizable → TraversableOnce → GenTraversableOnce
def
size
: Int
The size of this immutable long integer map.
The size of this immutable long integer map.
 returns
the number of elements in this immutable long integer map.
 Attributes
 final
 Definition Classes
 LongMap → GenTraversableLike → TraversableOnce → GenTraversableOnce
def
slice
(from: Int, until: Int): LongMap[T]
Selects an interval of elements.
Selects an interval of elements. The returned collection is made up
of all elements x
which satisfy the invariant:
from <= indexOf(x) < until
Note: might return different results for different runs, unless the underlying collection type is ordered.
 from
the lowest index to include from this immutable long integer map.
 until
the highest index to EXCLUDE from this immutable long integer map.
 returns
a immutable long integer map containing the elements greater than or equal to
index from
extending up to (but not including) index until
of this immutable long integer map.
 Definition Classes
 IterableLike → TraversableLike → GenTraversableLike
def
sliding
[B >: (Long, T)]
(size: Int, step: Int): Iterator[LongMap[T]]
 Definition Classes
 IterableLike
def
sliding
[B >: (Long, T)]
(size: Int): Iterator[LongMap[T]]
Groups elements in fixed size blocks by passing a "sliding window"
over them (as opposed to partitioning them, as is done in grouped.
Groups elements in fixed size blocks by passing a "sliding window"
over them (as opposed to partitioning them, as is done in grouped.)
 size
the number of elements per group
 returns
An iterator producing immutable long integer maps of size size
, except the
last and the only element will be truncated if there are
fewer elements than size.
 Definition Classes
 IterableLike
 See also
Iterator#sliding
def
span
(p: ((Long, T)) ⇒ Boolean): (LongMap[T], LongMap[T])
Splits this immutable long integer map into a prefix/suffix pair according to a predicate.
Splits this immutable long integer map into a prefix/suffix pair according to a predicate.
Note: c span p
is equivalent to (but possibly more efficient than)
(c takeWhile p, c dropWhile p)
, provided the evaluation of the
predicate p
does not cause any sideeffects.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 p
the test predicate
 returns
a pair consisting of the longest prefix of this immutable long integer map whose
elements all satisfy p
, and the rest of this immutable long integer map.
 Definition Classes
 TraversableLike → GenTraversableLike
def
splitAt
(n: Int): (LongMap[T], LongMap[T])
Splits this immutable long integer map into two at a given position.
Splits this immutable long integer map into two at a given position.
Note: c splitAt n
is equivalent to (but possibly more efficient than)
(c take n, c drop n)
.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 n
the position at which to split.
 returns
a pair of immutable long integer maps consisting of the first n
elements of this immutable long integer map, and the other elements.
 Definition Classes
 TraversableLike → GenTraversableLike
def
stringPrefix
: String
Defines the prefix of this object's toString
representation.
Defines the prefix of this object's toString
representation.
 returns
a string representation which starts the result of toString
applied to this immutable long integer map.
Unless overridden in subclasses, the string prefix of every map is "Map"
.
 Definition Classes
 LongMap → MapLike → TraversableLike → GenTraversableLike
def
sum
: (Long, T)
[use case] Sums up the elements of this collection.
[use case] Sums up the elements of this collection.
 returns
the sum of all elements of this immutable long integer map with respect to the +
operator in num
.
 Attributes
 abstract
 Definition Classes
 GenTraversableOnce
def
sum
[B >: (Long, T)]
(implicit num: Numeric[B]): B
Sums up the elements of this collection.
Sums up the elements of this collection.
 B
the result type of the +
operator.
 num
an implicit parameter defining a set of numeric operations
which includes the +
operator to be used in forming the sum.
 returns
the sum of all elements of this immutable long integer map with respect to the +
operator in num
.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
synchronized
[T0]
(arg0: ⇒ T0): T0
 Attributes
 final
 Definition Classes
 AnyRef
def
tail
: LongMap[T]
Selects all elements except the first.
Selects all elements except the first.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 returns
a immutable long integer map consisting of all elements of this immutable long integer map
except the first one.
 Definition Classes
 TraversableLike → GenTraversableLike
def
tails
: Iterator[LongMap[T]]
Iterates over the tails of this immutable long integer map.
Iterates over the tails of this immutable long integer map. The first value will be this
immutable long integer map and the final one will be an empty immutable long integer map, with the intervening
values the results of successive applications of tail
.
 returns
an iterator over all the tails of this immutable long integer map
 Definition Classes
 TraversableLike
Example:
List(1,2,3).tails = Iterator(List(1,2,3), List(2,3), List(3), Nil)
def
take
(n: Int): LongMap[T]
Selects first n elements.
Selects first n elements.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 n
Tt number of elements to take from this immutable long integer map.
 returns
a immutable long integer map consisting only of the first n
elements of this immutable long integer map,
or else the whole immutable long integer map, if it has less than n
elements.
 Definition Classes
 IterableLike → TraversableLike → GenTraversableLike
def
takeRight
(n: Int): LongMap[T]
Selects last n elements.
Selects last n elements.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 n
the number of elements to take
 returns
a immutable long integer map consisting only of the last n
elements of this immutable long integer map, or else the
whole immutable long integer map, if it has less than n
elements.
 Definition Classes
 IterableLike
def
takeWhile
(p: ((Long, T)) ⇒ Boolean): LongMap[T]
Takes longest prefix of elements that satisfy a predicate.
Takes longest prefix of elements that satisfy a predicate.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 p
The predicate used to test elements.
 returns
the longest prefix of this immutable long integer map whose elements all satisfy
the predicate p
.
 Definition Classes
 IterableLike → TraversableLike → GenTraversableLike
def
thisCollection
: Iterable[(Long, T)]
The underlying collection seen as an instance of immutable.LongMap
.
The underlying collection seen as an instance of immutable.LongMap
.
By default this is implemented as the current collection object itself,
but this can be overridden.
 Attributes
 protected[this]
 Definition Classes
 IterableLike → TraversableLike
def
toArray
: Array[(Long, T)]
[use case] Converts this immutable long integer map to an array.
[use case] Converts this immutable long integer map to an array.
 returns
an array containing all elements of this immutable long integer map.
 Attributes
 abstract
 Definition Classes
 GenTraversableOnce
def
toArray
[B >: (Long, T)]
(implicit arg0: ClassManifest[B]): Array[B]
Converts this immutable long integer map to an array.
Converts this immutable long integer map to an array.
 B
the type of the elements of the array. A ClassManifest
for
this type must be available.
 returns
an array containing all elements of this immutable long integer map.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
toBuffer
[C >: (Long, T)]
: Buffer[C]
Converts this immutable long integer map to a mutable buffer.
Converts this immutable long integer map to a mutable buffer.
 returns
a buffer containing all elements of this immutable long integer map.
 Definition Classes
 MapLike → TraversableOnce → GenTraversableOnce
def
toCollection
(repr: LongMap[T]): Iterable[(Long, T)]
A conversion from collections of type Repr
to immutable.LongMap
objects.
A conversion from collections of type Repr
to immutable.LongMap
objects.
By default this is implemented as just a cast, but this can be overridden.
 Attributes
 protected[this]
 Definition Classes
 IterableLike → TraversableLike
def
toIndexedSeq
[B >: (Long, T)]
: IndexedSeq[B]
Converts this immutable long integer map to an indexed sequence.
Converts this immutable long integer map to an indexed sequence.
 returns
an indexed sequence containing all elements of this immutable long integer map.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
toIterable
: Iterable[(Long, T)]
Converts this immutable long integer map to an iterable collection.
Converts this immutable long integer map to an iterable collection. Note that
the choice of target Iterable
is lazy in this default implementation
as this TraversableOnce
may be lazy and unevaluated (i.e. it may
be an iterator which is only traversable once).
 returns
an Iterable
containing all elements of this immutable long integer map.
 Definition Classes
 IterableLike → TraversableOnce → GenTraversableOnce
def
toIterator
: Iterator[(Long, T)]
Returns an Iterator over the elements in this immutable long integer map.
Returns an Iterator over the elements in this immutable long integer map. Will return
the same Iterator if this instance is already an Iterator.
 returns
an Iterator containing all elements of this immutable long integer map.
 Definition Classes
 TraversableLike → GenTraversableOnce
def
toList
: List[(Long, T)]
Converts this immutable long integer map to a list.
Converts this immutable long integer map to a list.
 returns
a list containing all elements of this immutable long integer map.
 Definition Classes
 LongMap → TraversableOnce → GenTraversableOnce
def
toMap
[T, U]
: Map[T, U]
[use case] Converts this immutable long integer map to a map.
[use case] Converts this immutable long integer map to a map. This method is unavailable unless
the elements are members of Tuple2, each ((T, U)) becoming a keyvalue
pair in the map. Duplicate keys will be overwritten by later keys:
if this is an unordered collection, which key is in the resulting map
is undefined.
 returns
a map containing all elements of this immutable long integer map.
 Attributes
 abstract
 Definition Classes
 GenTraversableOnce
def
toMap
[T, U]
(implicit ev: <:<[(Long, T), (T, U)]): Map[T, U]
Converts this immutable long integer map to a map.
Converts this immutable long integer map to a map. This method is unavailable unless
the elements are members of Tuple2, each ((T, U)) becoming a keyvalue
pair in the map. Duplicate keys will be overwritten by later keys:
if this is an unordered collection, which key is in the resulting map
is undefined.
 returns
a map containing all elements of this immutable long integer map.
 Definition Classes
 Map → TraversableOnce → GenTraversableOnce
def
toSeq
: Seq[(Long, T)]
Overridden for efficiency.
Overridden for efficiency.
 returns
a sequence containing all elements of this immutable long integer map.
 Definition Classes
 MapLike → TraversableOnce → GenTraversableOnce
def
toSet
[B >: (Long, T)]
: Set[B]
Converts this immutable long integer map to a set.
Converts this immutable long integer map to a set.
 returns
a set containing all elements of this immutable long integer map.
 Definition Classes
 TraversableOnce → GenTraversableOnce
def
toStream
: Stream[(Long, T)]
Converts this immutable long integer map to a stream.
Converts this immutable long integer map to a stream.
 returns
a stream containing all elements of this immutable long integer map.
 Definition Classes
 IterableLike → TraversableLike → GenTraversableOnce
def
toString
(): String
Converts this immutable long integer map to a string.
Converts this immutable long integer map to a string.
 returns
a string representation of this collection. By default this
string consists of the stringPrefix
of this immutable long integer map,
followed by all elements separated by commas and enclosed in parentheses.
 Definition Classes
 MapLike → TraversableLike → Function1 → AnyRef → Any
def
toTraversable
: Traversable[(Long, T)]
Converts this immutable long integer map to an unspecified Traversable.
Converts this immutable long integer map to an unspecified Traversable. Will return
the same collection if this instance is already Traversable.
 returns
a Traversable containing all elements of this immutable long integer map.
 Definition Classes
 TraversableLike → TraversableOnce → GenTraversableOnce
def
transform
[S]
(f: (Long, T) ⇒ S): LongMap[S]
def
transform
[C, That]
(f: (Long, T) ⇒ C)(implicit bf: CanBuildFrom[LongMap[T], (Long, C), That]): That
This function transforms all the values of mappings contained
in this map with function f
.
This function transforms all the values of mappings contained
in this map with function f
.
 f
A function over keys and values
 returns
the updated map
 Definition Classes
 MapLike
def
transpose
[B]
(implicit asTraversable: ((Long, T)) ⇒ TraversableOnce[B]): Traversable[Traversable[B]]
Transposes this immutable long integer map of traversable collections into
a immutable long integer map of immutable long integer maps.
Transposes this immutable long integer map of traversable collections into
a immutable long integer map of immutable long integer maps.
 B
the type of the elements of each traversable collection.
 asTraversable
an implicit conversion which asserts that the
element type of this immutable long integer map is a Traversable
.
 returns
a twodimensional immutable long integer map of immutable long integer maps which has as nth row
the nth column of this immutable long integer map.
 Definition Classes
 Traversable → GenericTraversableTemplate
 Annotations

@bridge()
def
unionWith
[S >: T]
(that: LongMap[S], f: (Long, S, S) ⇒ S): LongMap[S]
Forms a union map with that map, using the combining function to resolve conflicts.
Forms a union map with that map, using the combining function to resolve conflicts.
 S
The type of values in that
, a supertype of values in this
.
 that
The map to form a union with.
 f
The function used to resolve conflicts between two mappings.
 returns
Union of this
and that
, with identical key conflicts resolved using the function f
.
def
unzip
[A1, A2]
(implicit asPair: ((Long, T)) ⇒ (A1, A2)): (Iterable[A1], Iterable[A2])
Converts this immutable long integer map of pairs into two collections of the first and second
half of each pair.
Converts this immutable long integer map of pairs into two collections of the first and second
half of each pair.
 asPair
an implicit conversion which asserts that the element type
of this immutable long integer map is a pair.
 returns
a pair immutable long integer maps, containing the first, respectively second
half of each element pair of this immutable long integer map.
 Definition Classes
 GenericTraversableTemplate
def
unzip3
[A1, A2, A3]
(implicit asTriple: ((Long, T)) ⇒ (A1, A2, A3)): (Iterable[A1], Iterable[A2], Iterable[A3])
Converts this immutable long integer map of triples into three collections of the first, second,
and third element of each triple.
Converts this immutable long integer map of triples into three collections of the first, second,
and third element of each triple.
 returns
a triple immutable long integer maps, containing the first, second, respectively
third member of each element triple of this immutable long integer map.
 Definition Classes
 GenericTraversableTemplate
def
updateWith
[S >: T]
(key: Long, value: S, f: (T, S) ⇒ S): LongMap[S]
Updates the map, using the provided function to resolve conflicts if the key is already present.
Updates the map, using the provided function to resolve conflicts if the key is already present.
Equivalent to
this.get(key) match {
case None => this.update(key, value);
case Some(oldvalue) => this.update(key, f(oldvalue, value)
}
 S
The supertype of values in this LongMap
.
 key
The key to update.
 value
The value to use if there is no conflict.
 f
The function used to resolve conflicts.
 returns
The updated map.
def
updated
[S >: T]
(key: Long, value: S): LongMap[S]
Add a key/value pair to this map.
def
values
: Iterable[T]
Collects all values of this map in an iterable collection.
Collects all values of this map in an iterable collection.
 returns
the values of this map as an iterable.
 Definition Classes
 MapLike
 Annotations

@migration
 Migration
"As of 2.8, values returns Iterable[B] rather than Iterator[B]."
def
valuesIterator
: Iterator[T]
Creates an iterator for all values in this map.
def
view
(from: Int, until: Int): IterableView[(Long, T), LongMap[T]]
Creates a nonstrict view of a slice of this immutable long integer map.
Creates a nonstrict view of a slice of this immutable long integer map.
Note: the difference between view
and slice
is that view
produces
a view of the current immutable long integer map, whereas slice
produces a new immutable long integer map.
Note: view(from, to)
is equivalent to view.slice(from, to)
Note: might return different results for different runs, unless the underlying collection type is ordered.
 from
the index of the first element of the view
 until
the index of the element following the view
 returns
a nonstrict view of a slice of this immutable long integer map, starting at index from
and extending up to (but not including) index until
.
 Definition Classes
 IterableLike → TraversableLike
def
view
: IterableView[(Long, T), LongMap[T]]
Creates a nonstrict view of this immutable long integer map.
Creates a nonstrict view of this immutable long integer map.
 returns
a nonstrict view of this immutable long integer map.
 Definition Classes
 IterableLike → TraversableLike
def
wait
(): Unit
 Attributes
 final
 Definition Classes
 AnyRef
 Annotations

@throws()
def
wait
(arg0: Long, arg1: Int): Unit
 Attributes
 final
 Definition Classes
 AnyRef
 Annotations

@throws()
def
wait
(arg0: Long): Unit
 Attributes
 final
 Definition Classes
 AnyRef
 Annotations

@throws()
def
withDefault
[B1 >: T]
(d: (Long) ⇒ B1): Map[Long, B1]
The same map with a given default function.
The same map with a given default function.
Note: get
, contains
, iterator
, keys
, etc are not affected by withDefault
.
Invoking transformer methods (e.g. map
) will not preserve the default value.
 d
the function mapping keys to values, used for nonpresent keys
 returns
a wrapper of the map with a default value
 Definition Classes
 Map
def
withDefaultValue
[B1 >: T]
(d: B1): Map[Long, B1]
The same map with a given default value.
The same map with a given default value.
Invoking transformer methods (e.g. map
) will not preserve the default value.
 d
the function mapping keys to values, used for nonpresent keys
 returns
a wrapper of the map with a default value
 Definition Classes
 Map
def
withFilter
(p: ((Long, T)) ⇒ Boolean): FilterMonadic[(Long, T), LongMap[T]]
Creates a nonstrict filter of this immutable long integer map.
Creates a nonstrict filter of this immutable long integer map.
Note: the difference between c filter p
and c withFilter p
is that
the former creates a new collection, whereas the latter only
restricts the domain of subsequent map
, flatMap
, foreach
,
and withFilter
operations.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 p
the predicate used to test elements.
 returns
an object of class WithFilter
, which supports
map
, flatMap
, foreach
, and withFilter
operations.
All these operations apply to those elements of this immutable long integer map which
satisfy the predicate p
.
 Definition Classes
 TraversableLike → FilterMonadic
def
zip
[A1 >: (Long, T), B, That]
(that: Iterable[B])(implicit bf: CanBuildFrom[LongMap[T], (A1, B), That]): That
 Definition Classes
 IterableLike
 Annotations

@bridge()
def
zip
[B]
(that: GenIterable[B]): immutable.LongMap[((Long, T), B)]
[use case] Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
[use case] Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
If one of the two collections is longer than the other, its remaining elements are ignored.
 B
the type of the second half of the returned pairs
 that
The iterable providing the second half of each result pair
 returns
a new collection of type That
containing pairs consisting of
corresponding elements of this immutable long integer map and that
. The length
of the returned collection is the minimum of the lengths of this immutable long integer map and that
.
 Attributes
 abstract
 Definition Classes
 GenIterableLike
def
zip
[A1 >: (Long, T), B, That]
(that: GenIterable[B])(implicit bf: CanBuildFrom[LongMap[T], (A1, B), That]): That
Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
If one of the two collections is longer than the other, its remaining elements are ignored.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 A1
the type of the first half of the returned pairs (this is always a supertype
of the collection's element type A
).
 B
the type of the second half of the returned pairs
 That
the class of the returned collection. Where possible, That
is
the same class as the current collection class Repr
, but this
depends on the element type (A1, B)
being admissible for that class,
which means that an implicit instance of type CanBuildFrom[Repr, (A1, B), That]
.
is found.
 that
The iterable providing the second half of each result pair
 bf
an implicit value of class CanBuildFrom
which determines the
result class That
from the current representation type Repr
and the new element type (A1, B)
.
 returns
a new collection of type That
containing pairs consisting of
corresponding elements of this immutable long integer map and that
. The length
of the returned collection is the minimum of the lengths of this immutable long integer map and that
.
 Definition Classes
 IterableLike → GenIterableLike
def
zipAll
[B, A1 >: (Long, T), That]
(that: Iterable[B], thisElem: A1, thatElem: B)(implicit bf: CanBuildFrom[LongMap[T], (A1, B), That]): That
 Definition Classes
 IterableLike
 Annotations

@bridge()
def
zipAll
[B]
(that: Iterable[B], thisElem: (Long, T), thatElem: B): immutable.LongMap[((Long, T), B)]
[use case] Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
[use case] Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
If one of the two collections is shorter than the other,
placeholder elements are used to extend the shorter collection to the length of the longer.
 that
the iterable providing the second half of each result pair
 thisElem
the element to be used to fill up the result if this immutable long integer map is shorter than that
.
 thatElem
the element to be used to fill up the result if that
is shorter than this immutable long integer map.
 returns
a new collection of type That
containing pairs consisting of
corresponding elements of this immutable long integer map and that
. The length
of the returned collection is the maximum of the lengths of this immutable long integer map and that
.
If this immutable long integer map is shorter than that
, thisElem
values are used to pad the result.
If that
is shorter than this immutable long integer map, thatElem
values are used to pad the result.
 Attributes
 abstract
 Definition Classes
 GenIterableLike
def
zipAll
[B, A1 >: (Long, T), That]
(that: GenIterable[B], thisElem: A1, thatElem: B)(implicit bf: CanBuildFrom[LongMap[T], (A1, B), That]): That
Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
Returns a immutable long integer map formed from this immutable long integer map and another iterable collection
by combining corresponding elements in pairs.
If one of the two collections is shorter than the other,
placeholder elements are used to extend the shorter collection to the length of the longer.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 that
the iterable providing the second half of each result pair
 thisElem
the element to be used to fill up the result if this immutable long integer map is shorter than that
.
 thatElem
the element to be used to fill up the result if that
is shorter than this immutable long integer map.
 returns
a new collection of type That
containing pairs consisting of
corresponding elements of this immutable long integer map and that
. The length
of the returned collection is the maximum of the lengths of this immutable long integer map and that
.
If this immutable long integer map is shorter than that
, thisElem
values are used to pad the result.
If that
is shorter than this immutable long integer map, thatElem
values are used to pad the result.
 Definition Classes
 IterableLike → GenIterableLike
def
zipWithIndex
: immutable.LongMap[((Long, T), Int)]
[use case] Zips this immutable long integer map with its indices.
[use case] Zips this immutable long integer map with its indices.
 returns
A new collection of type That
containing pairs consisting of all elements of this
immutable long integer map paired with their index. Indices start at 0
.
 Attributes
 abstract
 Definition Classes
 GenIterableLike
def
zipWithIndex
[A1 >: (Long, T), That]
(implicit bf: CanBuildFrom[LongMap[T], (A1, Int), That]): That
Zips this immutable long integer map with its indices.
Zips this immutable long integer map with its indices.
Note: might return different results for different runs, unless the underlying collection type is ordered.
 A1
the type of the first half of the returned pairs (this is always a supertype
of the collection's element type A
).
 That
the class of the returned collection. Where possible, That
is
the same class as the current collection class Repr
, but this
depends on the element type (A1, Int)
being admissible for that class,
which means that an implicit instance of type CanBuildFrom[Repr, (A1, Int), That]
.
is found.
 returns
A new collection of type That
containing pairs consisting of all elements of this
immutable long integer map paired with their index. Indices start at 0
.
 Definition Classes
 IterableLike → GenIterableLike
def
elements
: Iterator[(Long, T)]
 Definition Classes
 IterableLike
 Annotations

@deprecated
 Deprecated
use iterator' instead
def
first
: (Long, T)
 Definition Classes
 IterableLike
 Annotations

@deprecated
 Deprecated
use head' instead
def
firstOption
: Option[(Long, T)]
None
if iterable is empty.
None
if iterable is empty.
 Definition Classes
 IterableLike
 Annotations

@deprecated
 Deprecated
use headOption' instead
def
mapElements
[C]
(f: (T) ⇒ C): Map[Long, C]
 Definition Classes
 MapLike
 Annotations

@deprecated
 Deprecated
use mapValues' instead
def
projection
: IterableView[(Long, T), LongMap[T]]
returns a projection that can be used to call nonstrict filter
,
map
, and flatMap
methods that build projections
of the collection.
returns a projection that can be used to call nonstrict filter
,
map
, and flatMap
methods that build projections
of the collection.
 Definition Classes
 IterableLike
 Annotations

@deprecated
 Deprecated
use view' instead
Inherited from Map[Long, T]
Inherited from Map[Long, T]
Inherited from Subtractable[Long, LongMap[T]]
Inherited from PartialFunction[Long, T]
Inherited from (Long) ⇒ T
Inherited from GenMap[Long, T]
Inherited from GenMapLike[Long, T, LongMap[T]]
Inherited from Iterable[(Long, T)]
Inherited from Iterable[(Long, T)]
Inherited from IterableLike[(Long, T), LongMap[T]]
Inherited from Equals
Inherited from GenIterable[(Long, T)]
Inherited from GenIterableLike[(Long, T), LongMap[T]]
Inherited from Traversable[(Long, T)]
Inherited from Immutable
Inherited from Traversable[(Long, T)]
Inherited from GenTraversable[(Long, T)]
Inherited from GenericTraversableTemplate[(Long, T), Iterable]
Inherited from TraversableLike[(Long, T), LongMap[T]]
Inherited from GenTraversableLike[(Long, T), LongMap[T]]
Inherited from Parallelizable[(Long, T), ParMap[Long, T]]
Inherited from TraversableOnce[(Long, T)]
Inherited from GenTraversableOnce[(Long, T)]
Inherited from FilterMonadic[(Long, T), LongMap[T]]
Inherited from HasNewBuilder[(Long, T), LongMap[T]]
Inherited from AnyRef
Inherited from Any
Specialised immutable map structure for long keys, based on Fast Mergeable Long Maps by Okasaki and Gill. Essentially a trie based on binary digits of the integers.
Note: This class is as of 2.8 largely superseded by HashMap.
type of the values associated with the long keys.
2.7