Class CollectionNodeIterator

java.lang.Object

org.apache.commons.jxpath.ri.model.beans.CollectionNodeIterator

All Implemented Interfaces:

NodeIterator

Direct Known Subclasses:

CollectionAttributeNodeIterator, CollectionChildNodeIterator

public abstract class CollectionNodeIterator
extends Object
implements NodeIterator

Combines node iterators of all elements of a collection into one aggregate node iterator.

Version:

$Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $

Author:

Dmitri Plotnikov

Field Summary

Fields

Modifier and Type	Field	Description
private List	collection
private CollectionPointer	pointer
private int	position
private boolean	reverse
private NodePointer	startWith

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CollectionNodeIterator(CollectionPointer pointer, boolean reverse, NodePointer startWith)	Create a new CollectionNodeIterator.

Method Summary

Modifier and Type	Method	Description
protected abstract NodeIterator	getElementNodeIterator(NodePointer elementPointer)	Implemented by subclasses to produce child/attribute node iterators.
NodePointer	getNodePointer()	Get the NodePointer at the current position.
int	getPosition()	Get the current iterator position.
private void	prepare()	Prepare...
boolean	setPosition(int position)	Set the new current position.

Methods inherited from class Object

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

Field Details

pointer

private CollectionPointer pointer

reverse

private boolean reverse

startWith

private NodePointer startWith

position

private int position

collection

private List collection

Constructor Details

CollectionNodeIterator

protected CollectionNodeIterator(CollectionPointer pointer,
 boolean reverse,
 NodePointer startWith)

Create a new CollectionNodeIterator.

Parameters:

pointer - collection pointer

reverse - iteration order

startWith - starting pointer

Method Details

getElementNodeIterator

protected abstract NodeIterator getElementNodeIterator(NodePointer elementPointer)

Implemented by subclasses to produce child/attribute node iterators.

Parameters:

elementPointer - owning pointer

Returns:

NodeIterator

getPosition

public int getPosition()

Description copied from interface: NodeIterator

Get the current iterator position.

Specified by:

getPosition in interface NodeIterator

Returns:

int position

setPosition

public boolean setPosition(int position)

Description copied from interface: NodeIterator

Set the new current position.

Specified by:

setPosition in interface NodeIterator

Parameters:

position - the position to set

Returns:

true if there is a node at position.

getNodePointer

public NodePointer getNodePointer()

Description copied from interface: NodeIterator

Get the NodePointer at the current position.

Specified by:

getNodePointer in interface NodeIterator

Returns:

NodePointer

prepare

private void prepare()

Prepare...