org.apache.jackrabbit.commons.iterator
Class FilteringNodeIterator

java.lang.Object
  org.apache.jackrabbit.commons.iterator.FilteringNodeIterator

All Implemented Interfaces:

Iterator, NodeIterator, RangeIterator

public class FilteringNodeIterator
extends Object
implements NodeIterator

A wrapper around a NodeIterator filtering out nodes from the base iterator that don't match the specified filter. Due to the nature of the filter mechanism the size if the iterator may shrink upon iteration.

Field Summary

protected NodeIterator	base
protected Predicate	filter

Constructor Summary

FilteringNodeIterator(NodeIterator base, Predicate filter)

Method Summary

long	getPosition()
long	getSize()
boolean	hasNext()
Object	next()
Node	nextNode()
void	remove()
protected Node	seekNext()
void	skip(long skipNum)

Methods inherited from class java.lang.Object

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

Field Detail

base

protected final NodeIterator base

filter

protected final Predicate filter

Constructor Detail

FilteringNodeIterator

public FilteringNodeIterator(NodeIterator base,
                             Predicate filter)

Method Detail

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator

See Also:

Iterator.hasNext()

next

public Object next()

Specified by:

next in interface Iterator

See Also:

Iterator.next()

remove

public void remove()

Specified by:

remove in interface Iterator

See Also:

Iterator.remove()

nextNode

public Node nextNode()

Specified by:

nextNode in interface NodeIterator

See Also:

NodeIterator.nextNode()

skip

public void skip(long skipNum)

Specified by:

skip in interface RangeIterator

See Also:

RangeIterator.skip(long)

getSize

public long getSize()

Specified by:

getSize in interface RangeIterator

See Also:

RangeIterator.getSize()

getPosition

public long getPosition()

Specified by:

getPosition in interface RangeIterator

See Also:

RangeIterator.getPosition()

seekNext

protected Node seekNext()

Returns: