org.springframework.util

Class CompositeIterator<E>

java.lang.Object

org.springframework.util.CompositeIterator<E>

All Implemented Interfaces:

java.util.Iterator<E>

public class CompositeIterator<E>
extends java.lang.Object
implements java.util.Iterator<E>

Iterator that combines multiple other iterators. This implementation maintains a list of iterators which are invoked in sequence until all iterators are exhausted.

Author:

Erwin Vervaet

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	inUse
private java.util.List<java.util.Iterator<E>>	iterators

Constructor Summary

Constructors

Constructor and Description
CompositeIterator() Create a new composite iterator.

Method Summary

Methods

Modifier and Type	Method and Description
void	add(java.util.Iterator<E> iterator) Add given iterator to this composite.
boolean	hasNext()
E	next()
void	remove()

Methods inherited from class java.lang.Object

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

Field Detail

iterators

private java.util.List<java.util.Iterator<E>> iterators

inUse

private boolean inUse

Constructor Detail

CompositeIterator

public CompositeIterator()

Create a new composite iterator. Add iterators using the add(Iterator) method.

Method Detail

add

public void add(java.util.Iterator<E> iterator)

Add given iterator to this composite.

hasNext

public boolean hasNext()

Specified by:

hasNext in interface java.util.Iterator<E>

next

public E next()

Specified by:

next in interface java.util.Iterator<E>

remove

public void remove()

Specified by:

remove in interface java.util.Iterator<E>