Class CollectionNodeIterator
- java.lang.Object
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- org.apache.commons.jxpath.ri.model.beans.CollectionNodeIterator
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- All Implemented Interfaces:
NodeIterator
- Direct Known Subclasses:
CollectionAttributeNodeIterator
,CollectionChildNodeIterator
public abstract class CollectionNodeIterator extends java.lang.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) $
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Field Summary
Fields Modifier and Type Field Description private java.util.List
collection
private CollectionPointer
pointer
private int
position
private boolean
reverse
private NodePointer
startWith
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Constructor Summary
Constructors Modifier Constructor Description protected
CollectionNodeIterator(CollectionPointer pointer, boolean reverse, NodePointer startWith)
Create a new CollectionNodeIterator.
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Method Summary
All Methods Instance Methods Abstract Methods Concrete Methods 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.
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Field Detail
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pointer
private CollectionPointer pointer
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reverse
private boolean reverse
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startWith
private NodePointer startWith
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position
private int position
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collection
private java.util.List collection
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Constructor Detail
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CollectionNodeIterator
protected CollectionNodeIterator(CollectionPointer pointer, boolean reverse, NodePointer startWith)
Create a new CollectionNodeIterator.- Parameters:
pointer
- collection pointerreverse
- iteration orderstartWith
- starting pointer
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Method Detail
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getElementNodeIterator
protected abstract NodeIterator getElementNodeIterator(NodePointer elementPointer)
Implemented by subclasses to produce child/attribute node iterators.- Parameters:
elementPointer
- owning pointer- Returns:
- NodeIterator
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getPosition
public int getPosition()
Description copied from interface:NodeIterator
Get the current iterator position.- Specified by:
getPosition
in interfaceNodeIterator
- Returns:
- int position
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setPosition
public boolean setPosition(int position)
Description copied from interface:NodeIterator
Set the new current position.- Specified by:
setPosition
in interfaceNodeIterator
- Parameters:
position
- the position to set- Returns:
true
if there is a node atposition
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getNodePointer
public NodePointer getNodePointer()
Description copied from interface:NodeIterator
Get the NodePointer at the current position.- Specified by:
getNodePointer
in interfaceNodeIterator
- Returns:
- NodePointer
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prepare
private void prepare()
Prepare...
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