ParallelArrayWithMapping (org.codehaus.gpars)

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groovyx.gpars.extra166y
[Java] Class ParallelArrayWithMapping

java.lang.Object
  groovyx.gpars.extra166y.AbstractParallelAnyArray.OPap
      groovyx.gpars.extra166y.ParallelArrayWithMapping

public abstract class ParallelArrayWithMapping
extends OPap

A prefix view of ParallelArray that causes operations to apply to mappings of elements, not to the elements themselves. Instances of this class may be constructed only via prefix methods of ParallelArray or its other prefix classes.

Constructor Summary
`ParallelArrayWithMapping(ForkJoinPool ex, int origin, int fence, java.lang.Object[] array)`

Method Summary
`ParallelArray`	`all()` Returns a new ParallelArray holding elements.
`ParallelArray`	`all(java.lang.Class elementType)` Returns a new ParallelArray with the given element type holding elements.
`java.lang.Object`	`any()` Returns some element matching bound and filter constraints, or null if none.
`void`	`apply(Procedure procedure)` Applies the given procedure to elements.
`java.lang.Object`	`max(java.util.Comparator comparator)` Returns the maximum element, or null if empty.
`java.lang.Object`	`max()` Returns the maximum element, or null if empty, assuming that all elements are Comparables.
`java.lang.Object`	`min(java.util.Comparator comparator)` Returns the minimum element, or null if empty.
`java.lang.Object`	`min()` Returns the minimum element, or null if empty, assuming that all elements are Comparables.
`java.lang.Object`	`reduce(Reducer reducer, java.lang.Object base)` Returns reduction of elements.
`java.lang.Iterable`	`sequentially()` Returns an Iterable view to sequentially step through mapped elements also obeying bound and filter constraints, without performing computations to evaluate them in parallel.
`SummaryStatistics`	`summary(java.util.Comparator comparator)` Returns summary statistics, using the given comparator to locate minimum and maximum elements.
`SummaryStatistics`	`summary()` Returns summary statistics, assuming that all elements are Comparables.
`ParallelArrayWithMapping`	`withIndexedMapping(IntAndObjectToObject mapper)` Returns an operation prefix that causes a method to operate on mappings of this array using the given mapper that accepts as arguments an element's current index and value (as mapped by preceding mappings, if any), and produces a new value.
`ParallelArrayWithDoubleMapping`	`withIndexedMapping(IntAndObjectToDouble mapper)` Returns an operation prefix that causes a method to operate on mappings of this array using the given mapper that accepts as arguments an element's current index and value (as mapped by preceding mappings, if any), and produces a new value.
`ParallelArrayWithLongMapping`	`withIndexedMapping(IntAndObjectToLong mapper)` Returns an operation prefix that causes a method to operate on mappings of this array using the given mapper that accepts as arguments an element's current index and value (as mapped by preceding mappings, if any), and produces a new value.
`ParallelArrayWithMapping`	`withMapping(Op op)` Returns an operation prefix that causes a method to operate on mapped elements of the array using the given op applied to current op's results.
`ParallelArrayWithDoubleMapping`	`withMapping(ObjectToDouble op)` Returns an operation prefix that causes a method to operate on mapped elements of the array using the given op applied to current op's results.
`ParallelArrayWithLongMapping`	`withMapping(ObjectToLong op)` Returns an operation prefix that causes a method to operate on mapped elements of the array using the given op applied to current op's results.
`ParallelArrayWithMapping`	`withMapping(BinaryOp combiner, ParallelArrayWithMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithMapping`	`withMapping(ObjectAndDoubleToObject combiner, ParallelDoubleArrayWithDoubleMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithMapping`	`withMapping(ObjectAndLongToObject combiner, ParallelLongArrayWithLongMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithDoubleMapping`	`withMapping(ObjectAndObjectToDouble combiner, ParallelArrayWithMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithDoubleMapping`	`withMapping(ObjectAndDoubleToDouble combiner, ParallelDoubleArrayWithDoubleMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithDoubleMapping`	`withMapping(ObjectAndLongToDouble combiner, ParallelLongArrayWithLongMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithLongMapping`	`withMapping(ObjectAndObjectToLong combiner, ParallelArrayWithMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithLongMapping`	`withMapping(ObjectAndDoubleToLong combiner, ParallelDoubleArrayWithDoubleMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.
`ParallelArrayWithLongMapping`	`withMapping(ObjectAndLongToLong combiner, ParallelLongArrayWithLongMapping other)` Returns an operation prefix that causes a method to operate on binary mappings of this array and the other array.

Constructor Detail

ParallelArrayWithMapping

ParallelArrayWithMapping(ForkJoinPool ex, int origin, int fence, java.lang.Object[] array)

Method Detail

all

public ParallelArray all()

Returns a new ParallelArray holding elements.

Returns:: a new ParallelArray holding elements

all

public ParallelArray all(java.lang.Class elementType)

Returns a new ParallelArray with the given element type holding elements.

Parameters:: elementType - the type of the elements

Returns:: a new ParallelArray holding elements

any

public java.lang.Object any()

Returns some element matching bound and filter constraints, or null if none.

Returns:: an element, or null if none

apply

public void apply(Procedure procedure)

Applies the given procedure to elements.

Parameters:: procedure - the procedure

max

public java.lang.Object max(java.util.Comparator comparator)

Returns the maximum element, or null if empty.

Parameters:: comparator - the comparator

Returns:: maximum element, or null if empty

max

public java.lang.Object max()

Returns the maximum element, or null if empty, assuming that all elements are Comparables.

throws:: ClassCastException if any element is not Comparable

Returns:: maximum element, or null if empty

min

public java.lang.Object min(java.util.Comparator comparator)

Returns the minimum element, or null if empty.

Parameters:: comparator - the comparator

Returns:: minimum element, or null if empty

min

public java.lang.Object min()

Returns the minimum element, or null if empty, assuming that all elements are Comparables.

throws:: ClassCastException if any element is not Comparable

Returns:: minimum element, or null if empty

reduce

public java.lang.Object reduce(Reducer reducer, java.lang.Object base)

Returns reduction of elements.

Parameters:: reducer - the reducer; base - the result for an empty array

Returns:: reduction

sequentially

public java.lang.Iterable sequentially()

Returns an Iterable view to sequentially step through mapped elements also obeying bound and filter constraints, without performing computations to evaluate them in parallel.

Returns:: the Iterable view

summary

public SummaryStatistics summary(java.util.Comparator comparator)

Returns summary statistics, using the given comparator to locate minimum and maximum elements.

Parameters:: comparator - the comparator to use for locating minimum and maximum elements

Returns:: the summary

summary

public SummaryStatistics summary()

Returns summary statistics, assuming that all elements are Comparables.

Returns:: the summary

withIndexedMapping

public ParallelArrayWithMapping withIndexedMapping(IntAndObjectToObject mapper)

Returns an operation prefix that causes a method to operate on mappings of this array using the given mapper that accepts as arguments an element's current index and value (as mapped by preceding mappings, if any), and produces a new value.

Parameters:: mapper - the mapper

Returns:: operation prefix

withIndexedMapping

public ParallelArrayWithDoubleMapping withIndexedMapping(IntAndObjectToDouble mapper)

Parameters:: mapper - the mapper

Returns:: operation prefix

withIndexedMapping

public ParallelArrayWithLongMapping withIndexedMapping(IntAndObjectToLong mapper)

Parameters:: mapper - the mapper

Returns:: operation prefix

withMapping

public ParallelArrayWithMapping withMapping(Op op)

Returns an operation prefix that causes a method to operate on mapped elements of the array using the given op applied to current op's results.

Parameters:: op - the op

Returns:: operation prefix

withMapping

public ParallelArrayWithDoubleMapping withMapping(ObjectToDouble op)

Returns an operation prefix that causes a method to operate on mapped elements of the array using the given op applied to current op's results.

Parameters:: op - the op

Returns:: operation prefix

withMapping

public ParallelArrayWithLongMapping withMapping(ObjectToLong op)

Returns an operation prefix that causes a method to operate on mapped elements of the array using the given op applied to current op's results.

Parameters:: op - the op

Returns:: operation prefix