org.entityfs.support.util
Class AggregatingIterator<T>

java.lang.Object
  org.entityfs.support.util.AggregatingIterator<T>

All Implemented Interfaces:

Iterator<T>

public class AggregatingIterator<T>
extends Object
implements Iterator<T>

This is an iterator that returns elements from a collection of iterators. The elements from the first iterator returned from the collection are returned first, the elements from the second iterator next, etc.

EntityFS iterators are not thread safe. Don't use them concurrently from several threads without synchronizing access to them.

Since:

1.0

Author:

Karl Gustafsson

In_jar:

entityfs-core

Constructor Summary

AggregatingIterator(Collection<? extends Iterator<? extends T>> itrs)
Create an iterator that aggregates the elements from the supplied iterators.

AggregatingIterator(Iterator<? extends T>... itrs)
Create an iterator that aggregates the elements from the supplied iterators.

Method Summary

boolean	hasNext()
T	next()
void	remove()

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregatingIterator

public AggregatingIterator(Collection<? extends Iterator<? extends T>> itrs)

Create an iterator that aggregates the elements from the supplied iterators. The iterators are run in the order that they are returned when iterating over the supplied collection.

Parameters:

itrs - The iterators.

AggregatingIterator

public AggregatingIterator(Iterator<? extends T>... itrs)

Create an iterator that aggregates the elements from the supplied iterators.

Parameters:

itrs - The iterators.

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<T>

next

public T next()

Specified by:

next in interface Iterator<T>

remove

public void remove()

Specified by:

remove in interface Iterator<T>