jd.xml.xpath.axis
Class RootAxis

java.lang.Object
  jd.xml.xpath.axis.Axis
      jd.xml.xpath.axis.RootAxis

All Implemented Interfaces:

ModelWalker

public class RootAxis

extends Axis

implements ModelWalker

RootAxis represents the pseudo-axis for the document root.

Field Summary

static Axis

INSTANCE The axis instance.

Method Summary

XPathNode	getFirstNode(XPathNode contextNode, NodeTest nodeTest) Return the root.
int	getMaxResultSize(NodeTest nodeTest) Return 1.
int	getMinResultSize(NodeTest test) Return 1.
ModelWalker	getModelWalker() Return this.
void	getNodes(XPathNode contextNode, NodeTest nodeTest, XMutableNodeSet result) Add the root to the result set.
XPathNode	gotoFirstNode(XPathNode contextNode) Return the root node.
XPathNode	gotoNextNode(XPathNode lastNode) Return null.

Methods inherited from class jd.xml.xpath.axis.Axis

getName, getPrincipalNodeType, getProximityModelWalker, isDistinctAxis, isForwardAxis, toString

Methods inherited from class java.lang.Object

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

Field Detail

INSTANCE

public static final Axis INSTANCE

The axis instance.

Method Detail

getMaxResultSize

public int getMaxResultSize(NodeTest nodeTest)

Return 1.

Overrides:

getMaxResultSize in class Axis

getMinResultSize

public int getMinResultSize(NodeTest test)

Return 1.

Overrides:

getMinResultSize in class Axis

getNodes

public void getNodes(XPathNode contextNode,
                     NodeTest nodeTest,
                     XMutableNodeSet result)

Add the root to the result set.

Overrides:

getNodes in class Axis

Parameters:

contextNode - the context node

nodeTest - the node test

result - a nodeset for the matching nodes.

getFirstNode

public XPathNode getFirstNode(XPathNode contextNode,
                              NodeTest nodeTest)

Return the root.

Overrides:

getFirstNode in class Axis

getModelWalker

public ModelWalker getModelWalker()

Return this.

Specified by:

getModelWalker in class Axis

gotoFirstNode

public XPathNode gotoFirstNode(XPathNode contextNode)

Return the root node.

Specified by:

gotoFirstNode in interface ModelWalker

Returns:

the first node of the path represented by this ModelWalker.- If null the path is empty.

gotoNextNode

public XPathNode gotoNextNode(XPathNode lastNode)

Return null.

Specified by:

gotoNextNode in interface ModelWalker

Parameters:

lastNode - a XPathNode obtained from the last call to gotoFirstNode or gotoNextNode. If the node is another node the behaviour is not determined.

Returns:

the next node of the path represented by this ModelWalker.- If null then the path ended.