jsr166z.forkjoin
Class ParallelIntArray.WithBounds

java.lang.Object
  jsr166z.forkjoin.ParallelIntArray.WithIntMapping
      jsr166z.forkjoin.ParallelIntArray.WithFilter
          jsr166z.forkjoin.ParallelIntArray.WithBounds

Enclosing class:

ParallelIntArray

public static final class ParallelIntArray.WithBounds
extends ParallelIntArray.WithFilter

A restriction of parallel array operations to apply only within a given range of indices.

Method Summary

int	anyIndex() Returns the index of some element matching bound filter constraints, or -1 if none.
ParallelIntArray	combine(int[] other, {int,int=>int} combiner) Returns a ParallelArray containing results of applying combine(thisElement, otherElement) for each element.
ParallelIntArray	combine(ParallelIntArray other, {int,int=>int} combiner) Returns a ParallelArray containing results of applying combine(thisElement, otherElement) for each element.
void	cumulate({int,int=>int} reducer, int base) Replaces each element with the running cumulation of applying the given reducer.
void	cumulateSum() Replaces each element with the running sum
ParallelIntArray	newArray() Returns a new ParallelArray holding elements
int	precumulate({int,int=>int} reducer, int base) Replaces each element with the cumulation of applying the given reducer to all previous values, and returns the total reduction.
int	precumulateSum() Replaces each element with its prefix sum
int	size() Returns the number of elements within bounds
void	sort() Sorts the elements, using natural comparator
void	sort({int,int=>int} cmp) Sorts the elements.
ParallelIntArray.WithFilter	withFilter({int=>boolean} selector) Returns an operation prefix that causes a method to operate only on the elements of the array for which the given selector returns true
ParallelIntArray.WithDoubleMapping	withMapping({int=>double} mapper) Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.
ParallelIntArray.WithIntMapping	withMapping({int=>int} mapper) Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.
ParallelIntArray.WithLongMapping	withMapping({int=>long} mapper) Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.
<U> ParallelIntArray.WithMapping<U>	withMapping({int=>U} mapper) Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.

Methods inherited from class jsr166z.forkjoin.ParallelIntArray.WithFilter

any, apply, indexOfMax, indexOfMax, indexOfMin, indexOfMin, max, max, min, min, randomFill, randomFill, reduce, replaceWithCombination, replaceWithCombination, replaceWithGeneratedValue, replaceWithMappedIndex, replaceWithTransform, replaceWithValue, sum

Methods inherited from class java.lang.Object

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

Method Detail

withFilter

public ParallelIntArray.WithFilter withFilter({int=>boolean} selector)

Returns an operation prefix that causes a method to operate only on the elements of the array for which the given selector returns true

Parameters:

selector - the selector

Returns:

operation prefix

withMapping

public <U> ParallelIntArray.WithMapping<U> withMapping({int=>U} mapper)

Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.

Specified by:

withMapping in class ParallelIntArray.WithFilter

Parameters:

mapper - the mapper

Returns:

operation prefix

withMapping

public ParallelIntArray.WithDoubleMapping withMapping({int=>double} mapper)

Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.

Specified by:

withMapping in class ParallelIntArray.WithFilter

Parameters:

mapper - the mapper

Returns:

operation prefix

withMapping

public ParallelIntArray.WithLongMapping withMapping({int=>long} mapper)

Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.

Specified by:

withMapping in class ParallelIntArray.WithFilter

Parameters:

mapper - the mapper

Returns:

operation prefix

withMapping

public ParallelIntArray.WithIntMapping withMapping({int=>int} mapper)

Returns an operation prefix that causes a method to operate on mapped elements of the array using the given mapper.

Specified by:

withMapping in class ParallelIntArray.WithFilter

Parameters:

mapper - the mapper

Returns:

operation prefix

anyIndex

public int anyIndex()

Returns the index of some element matching bound filter constraints, or -1 if none.

Specified by:

anyIndex in class ParallelIntArray.WithIntMapping

Returns:

index of matching element, or -1 if none.

combine

public ParallelIntArray combine(int[] other,
                                {int,int=>int} combiner)

Returns a ParallelArray containing results of applying combine(thisElement, otherElement) for each element.

Parameters:

other - the other array

combiner - the combiner

Returns:

the array of mappings

Throws:

java.lang.ArrayIndexOutOfBoundsException - if other array is shorter than this array.

combine

public ParallelIntArray combine(ParallelIntArray other,
                                {int,int=>int} combiner)

Returns a ParallelArray containing results of applying combine(thisElement, otherElement) for each element.

Parameters:

other - the other array

combiner - the combiner

Returns:

the array of mappings

Throws:

java.lang.ArrayIndexOutOfBoundsException - if other array is shorter than this array.

size

public int size()

Returns the number of elements within bounds

Specified by:

size in class ParallelIntArray.WithIntMapping

Returns:

the number of elements within bounds

cumulate

public void cumulate({int,int=>int} reducer,
                     int base)

Replaces each element with the running cumulation of applying the given reducer.

Parameters:

reducer - the reducer

base - the result for an empty array

cumulateSum

public void cumulateSum()

Replaces each element with the running sum

precumulate

public int precumulate({int,int=>int} reducer,
                       int base)

Replaces each element with the cumulation of applying the given reducer to all previous values, and returns the total reduction.

Parameters:

reducer - the reducer

base - the result for an empty array

Returns:

the total reduction

precumulateSum

public int precumulateSum()

Replaces each element with its prefix sum

Returns:

the total sum

sort

public void sort({int,int=>int} cmp)

Sorts the elements.

Parameters:

cmp - the comparator to use

sort

public void sort()

Sorts the elements, using natural comparator

newArray

public ParallelIntArray newArray()

Description copied from class: ParallelIntArray.WithFilter

Returns a new ParallelArray holding elements

Specified by:

newArray in class ParallelIntArray.WithFilter

Returns:

a new ParallelArray holding elements