net.sf.basedb.util
Class NestedIterator<E>

java.lang.Object
  net.sf.basedb.util.NestedIterator<E>

All Implemented Interfaces:

Iterator<E>

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

This class implements the Iterator interface for iterating multiple collections as if it was one big collection.

Version:

2.0

Author:

Nicklas

Last modified

$Date: 2008-09-11 22:08:14 +0200 (Thu, 11 Sep 2008) $

Field Summary

private Collection<? extends E>[]	collections The array to iterate.
private Iterator<? extends E>	current The current iterator.
private int	index The index of the next collection to return.

Constructor Summary

NestedIterator(Collection<? extends E>... collections)
Create a new ArrayIterator object.

Method Summary

boolean	hasNext()
E	next()
void	remove() This operation is not supported.

Methods inherited from class java.lang.Object

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

Field Detail

collections

private final Collection<? extends E>[] collections

The array to iterate.

index

private int index

The index of the next collection to return.

current

private Iterator<? extends E> current

The current iterator.

Constructor Detail

NestedIterator

public NestedIterator(Collection<? extends E>... collections)

Create a new ArrayIterator object.

Parameters:

collections - An array of Collection objects.

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<E>

next

public E next()

Specified by:

next in interface Iterator<E>

remove

public void remove()

This operation is not supported.

Specified by:

remove in interface Iterator<E>

Throws:

UnsupportedOperationException - Is always thrown