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

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.

Field Summary

Fields

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

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	CollectionNodeIterator(CollectionPointer pointer, boolean reverse, NodePointer startWith)	Constructs 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()	Gets the NodePointer at the current position.
int	getPosition()	Gets the current iterator position.
private void	prepare()	Prepare...
boolean	setPosition(int position)	Sets the new current position.

Methods inherited from class java.lang.Object

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

Field Details

pointer

private final CollectionPointer pointer

reverse

private final boolean reverse

startWith

private final NodePointer startWith

position

private int position

collection

private List<NodePointer> collection

Constructor Details

CollectionNodeIterator

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

Constructs 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

getNodePointer

public NodePointer getNodePointer()

Description copied from interface: NodeIterator

Gets the NodePointer at the current position.

Specified by:

getNodePointer in interface NodeIterator

Returns:

NodePointer

getPosition

public int getPosition()

Description copied from interface: NodeIterator

Gets the current iterator position.

Specified by:

getPosition in interface NodeIterator

Returns:

int position

prepare

private void prepare()

Prepare...

setPosition

public boolean setPosition(int position)

Description copied from interface: NodeIterator

Sets 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.