org.apache.xml.dtm.ref

Class DTMChildIterNodeList

Implemented Interfaces:
NodeList

public class DTMChildIterNodeList
extends DTMNodeListBase

DTMNodeList gives us an implementation of the DOM's NodeList interface wrapped around a DTM Iterator. The author considers this something of an abominations, since NodeList was not intended to be a general purpose "list of nodes" API and is generally considered by the DOM WG to have be a mistake... but I'm told that some of the XPath/XSLT folks say they must have this solution. Please note that this is not necessarily equivlaent to a DOM NodeList operating over the same document. In particular:

State: In progress!!

Constructor Summary

DTMChildIterNodeList(DTM parentDTM, int parentHandle)
Public constructor: Create a NodeList to support DTMNodeProxy.getChildren().

Method Summary

int
getLength()
The number of nodes in the list.
Node
item(int index)
Returns the indexth item in the collection.

Methods inherited from class org.apache.xml.dtm.ref.DTMNodeListBase

getLength, item

Constructor Details

DTMChildIterNodeList

public DTMChildIterNodeList(DTM parentDTM,
                            int parentHandle)
Public constructor: Create a NodeList to support DTMNodeProxy.getChildren(). Unfortunately AxisIterators and DTMIterators don't share an API, so I can't use the existing Axis.CHILD iterator. Rather than create Yet Another Class, let's set up a special case of this one.

Parameters:
parentDTM - The DTM containing this node
parentHandle - DTM node-handle integer

Method Details

getLength

public int getLength()
The number of nodes in the list. The range of valid child node indices is 0 to length-1 inclusive.
Specified by:
getLength in interface NodeList
Overrides:
getLength in interface DTMNodeListBase


item

public Node item(int index)
Returns the indexth item in the collection. If index is greater than or equal to the number of nodes in the list, this returns null.
Specified by:
item in interface NodeList
Overrides:
item in interface DTMNodeListBase

Parameters:

Returns:
The node at the indexth position in the NodeList, or null if that is not a valid index.


Copyright B) 2004 Apache XML Project. All Rights Reserved.