Package net.solarnetwork.util

Class UnionIterator<E>

java.lang.Object

net.solarnetwork.util.UnionIterator<E>

Type Parameters:

E - the element type

All Implemented Interfaces:

Iterator<E>

public class UnionIterator<E>
extends Object
implements Iterator<E>

Joins multiple Iterator instances into a single Iterator.

Version:

1.1

Author:

matt

Constructor Summary

Constructors

Constructor	Description
UnionIterator(Collection<Iterator<E>> iterators)	Construct from a collection of iterators.

Method Summary

Modifier and Type	Method	Description
protected void	finishedIterator(Iterator<E> itr)	Callback when iteration has finished on a delegate interator.
boolean	hasNext()
E	next()
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

UnionIterator

public UnionIterator(Collection<Iterator<E>> iterators)

Construct from a collection of iterators.

Parameters:

iterators - the iterators to merge

Method Details

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<E>

finishedIterator

protected void finishedIterator(Iterator<E> itr)

Callback when iteration has finished on a delegate interator.

This can be used by extending classes to clean up resources on the delegate iterators.

Parameters:

itr - the delegate iterator that has finished

next

public E next()

Specified by:

next in interface Iterator<E>

remove

public void remove()

Specified by:

remove in interface Iterator<E>