Package com.saperion.util

Class ParallelIterator<Type1,Type2>

java.lang.Object

com.saperion.util.ParallelIterator<Type1,Type2>

All Implemented Interfaces:

Iterator<Pair<Type1,Type2>>

public class ParallelIterator<Type1,Type2>
extends Object
implements Iterator<Pair<Type1,Type2>>

An iterator that iterates over two iterators simultaneously. Expects the ranges of both iterators to have the same length.

Constructor Summary

Constructors

Constructor	Description
ParallelIterator(Iterator<Type1> iterator1, Iterator<Type2> iterator2)	Creates a ParallelIterator that iterates over the given iterators simultaneously.

Method Summary

Modifier and Type	Method	Description
static <Type1, Type2> ParallelIterator<Type1,Type2>	create(Iterator<Type1> iterator1, Iterator<Type2> iterator2)	Convenience method that wraps the constructor call and lets the compiler determine the generic types.
boolean	hasNext()
Pair<Type1,Type2>	next()	The result will hold the result of the Iterator.next() call of the first iterator first, then the one of the second iterator.
static <Type1, Type2> Iterable<Pair<Type1,Type2>>	parallel(Iterable<Type1> iterable1, Iterable<Type2> iterable2)
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Constructor Details

ParallelIterator

public ParallelIterator(Iterator<Type1> iterator1,
 Iterator<Type2> iterator2)

Creates a ParallelIterator that iterates over the given iterators simultaneously.

Parameters:

iterator1 - the first iterator to iterate over. The return values of its Iterator.next() method will be first in the result pair of the next() method.

iterator2 - the second iterator to iterate over. The return values of its Iterator.next() method will be second in the result pair of the next() method.

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<Type1>

next

public Pair<Type1,Type2> next()

The result will hold the result of the Iterator.next() call of the first iterator first, then the one of the second iterator.

Specified by:

next in interface Iterator<Type1>

remove

public void remove()

Specified by:

remove in interface Iterator<Type1>

create

public static <Type1,
Type2>
ParallelIterator<Type1,Type2> create(Iterator<Type1> iterator1,
 Iterator<Type2> iterator2)

Convenience method that wraps the constructor call and lets the compiler determine the generic types.

parallel

public static <Type1,
Type2>
Iterable<Pair<Type1,Type2>> parallel(Iterable<Type1> iterable1,
 Iterable<Type2> iterable2)