scala.compat.java8.converterImpl

Class StepperExtensions<A>

java.lang.Object

scala.compat.java8.converterImpl.StepperExtensions<A>

Direct Known Subclasses:

StepperExtensions$mcD$sp, StepperExtensions$mcI$sp, StepperExtensions$mcJ$sp

public class StepperExtensions<A>
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
StepperExtensions(scala.collection.Stepper<A> s)

Method Summary

Modifier and Type	Method and Description
<C> C	accumulate(scala.collection.convert.StreamExtensions.AccumulatorFactoryInfo<A,C> info)
long	count() Consumes all remaining elements in this Stepper and counts how many there are.
long	count(scala.Function1<A,java.lang.Object> p) Consumes all remaining elements in this Stepper and counts how many satisfy condition p.
boolean	exists(scala.Function1<A,java.lang.Object> p) Searches for an element that satisfies condition p.
scala.Option<A>	find(scala.Function1<A,java.lang.Object> p) Searches for an element that satisifes condition p, returning it wrapped in Some if one is found, or None otherwise.
<B> B	fold(B zero, scala.Function2<B,A,B> op) Repeatedly applies op to propagate an initial value zero through all elements of the collection.
<B> B	foldTo(B zero, scala.Function2<B,A,B> op, scala.Function1<B,java.lang.Object> p) Repeatedly applies op to propagate an initial value zero through the collection until a condition p is met.
void	foreach(scala.Function1<A,scala.runtime.BoxedUnit> f) Applies f to every remaining element in the collection.
A	reduce(scala.Function2<A,A,A> op) Repeatedly merges elements with op until only a single element remains.
protected scala.collection.Stepper<A>	s()
scala.collection.Stepper<A>	substep()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

StepperExtensions

public StepperExtensions(scala.collection.Stepper<A> s)

Method Detail

accumulate

public <C> C accumulate(scala.collection.convert.StreamExtensions.AccumulatorFactoryInfo<A,C> info)

count

public long count()

Consumes all remaining elements in this Stepper and counts how many there are. This is a terminal operation.

Returns:

(undocumented)

count

public long count(scala.Function1<A,java.lang.Object> p)

Consumes all remaining elements in this Stepper and counts how many satisfy condition p. This is a terminal operation.

Parameters:

p - (undocumented)

Returns:

(undocumented)

exists

public boolean exists(scala.Function1<A,java.lang.Object> p)

Searches for an element that satisfies condition p. If none are found, it returns false. This is a terminal operation.

Parameters:

p - (undocumented)

Returns:

(undocumented)

find

public scala.Option<A> find(scala.Function1<A,java.lang.Object> p)

Searches for an element that satisifes condition p, returning it wrapped in Some if one is found, or None otherwise. This is a terminal operation.

Parameters:

p - (undocumented)

Returns:

(undocumented)

fold

public <B> B fold(B zero,
                  scala.Function2<B,A,B> op)

Repeatedly applies op to propagate an initial value zero through all elements of the collection. Traversal order is left-to-right. This is a terminal operation.

Parameters:

zero - (undocumented)

op - (undocumented)

Returns:

(undocumented)

foldTo

public <B> B foldTo(B zero,
                    scala.Function2<B,A,B> op,
                    scala.Function1<B,java.lang.Object> p)

Repeatedly applies op to propagate an initial value zero through the collection until a condition p is met. If p is never met, the result of the last operation is returned. This is a terminal operation.

Parameters:

zero - (undocumented)

op - (undocumented)

p - (undocumented)

Returns:

(undocumented)

foreach

public void foreach(scala.Function1<A,scala.runtime.BoxedUnit> f)

Applies f to every remaining element in the collection. This is a terminal operation.

Parameters:

f - (undocumented)

reduce

public A reduce(scala.Function2<A,A,A> op)

Repeatedly merges elements with op until only a single element remains. Throws an exception if the Stepper is empty. Merging occurs from left to right. This is a terminal operation.

Parameters:

op - (undocumented)

Returns:

(undocumented)

s

protected scala.collection.Stepper<A> s()

substep

public scala.collection.Stepper<A> substep()