jsr166z.forkjoin
Class ParallelArray.WithLongMapping<T>

java.lang.Object
  jsr166z.forkjoin.ParallelArray.WithLongMapping<T>

Enclosing class:

ParallelArray<T>

public abstract static class ParallelArray.WithLongMapping<T>
extends java.lang.Object

A modifier for parallel array operations to apply to mappings of elements to longs, not to the elements themselves

Method Summary

abstract long	any() Returns mapping of some element matching bound and filter constraints
abstract int	anyIndex() Returns the index of some element matching bound and filter constraints, or -1 if none.
void	apply({long=>void} procedure) Applies the given procedure
int	indexOfMax() Returns the index corresponding to the element for which the given mapping is greatest, or -1 if empty
int	indexOfMax({long,long=>int} comparator) Returns the index corresponding to the element for which the given mapping is greatest, or -1 if empty
int	indexOfMin() Returns the index corresponding to the element for which the given mapping is least, or -1 if empty
int	indexOfMin({long,long=>int} comparator) Returns the index corresponding to the element for which the given mapping is least, or -1 if empty
long	max() Returns the maximum element, or Long.MIN_VALUE if empty
long	max({long,long=>int} comparator) Returns the maximum element, or Long.MIN_VALUE if empty
long	min() Returns the minimum element, or Long.MAX_VALUE if empty
long	min({long,long=>int} comparator) Returns the minimum element, or Long.MAX_VALUE if empty
abstract ParallelLongArray	newArray() Returns a new ParallelLongArray holding mappings
long	reduce({long,long=>long} reducer, long base) Returns reduction of mapped elements
abstract int	size() Return the number of elements selected using bound or filter restrictions.
long	sum() Returns the sum of elements

Methods inherited from class java.lang.Object

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

Method Detail

apply

public void apply({long=>void} procedure)

Applies the given procedure

Parameters:

procedure - the procedure

reduce

public long reduce({long,long=>long} reducer,
                   long base)

Returns reduction of mapped elements

Parameters:

reducer - the reducer

base - the result for an empty array

Returns:

reduction

min

public long min()

Returns the minimum element, or Long.MAX_VALUE if empty

Returns:

minimum element, or Long.MAX_VALUE if empty

min

public long min({long,long=>int} comparator)

Returns the minimum element, or Long.MAX_VALUE if empty

Parameters:

comparator - the comparator

Returns:

minimum element, or Long.MAX_VALUE if empty

max

public long max()

Returns the maximum element, or Long.MIN_VALUE if empty

Returns:

maximum element, or Long.MIN_VALUE if empty

max

public long max({long,long=>int} comparator)

Returns the maximum element, or Long.MIN_VALUE if empty

Parameters:

comparator - the comparator

Returns:

maximum element, or Long.MIN_VALUE if empty

sum

public long sum()

Returns the sum of elements

Returns:

the sum of elements

indexOfMin

public int indexOfMin()

Returns the index corresponding to the element for which the given mapping is least, or -1 if empty

Returns:

the index of least element or -1 if empty.

indexOfMax

public int indexOfMax()

Returns the index corresponding to the element for which the given mapping is greatest, or -1 if empty

Returns:

the index of greatest element or -1 if empty.

indexOfMin

public int indexOfMin({long,long=>int} comparator)

Returns the index corresponding to the element for which the given mapping is least, or -1 if empty

Parameters:

comparator - the comparator

Returns:

the index of least element or -1 if empty.

indexOfMax

public int indexOfMax({long,long=>int} comparator)

Returns the index corresponding to the element for which the given mapping is greatest, or -1 if empty

Parameters:

comparator - the comparator

Returns:

the index of greatest element or -1 if empty.

newArray

public abstract ParallelLongArray newArray()

Returns a new ParallelLongArray holding mappings

Returns:

a new ParallelLongArray holding mappings

size

public abstract int size()

Return the number of elements selected using bound or filter restrictions. Note that this method must evaluate all selectors to return its result.

Returns:

the number of elements

anyIndex

public abstract int anyIndex()

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

Returns:

index of matching element, or -1 if none.

any

public abstract long any()

Returns mapping of some element matching bound and filter constraints

Returns:

mapping of matching element

Throws:

java.util.NoSuchElementException - if empty