weblogic.apache.xpath.axes
Class DescendantWalker
java.lang.Object
|
+--weblogic.apache.xpath.Expression
|
+--weblogic.apache.xpath.patterns.NodeTest
|
+--weblogic.apache.xpath.axes.PredicatedNodeTest
|
+--weblogic.apache.xpath.axes.AxesWalker
|
+--weblogic.apache.xpath.axes.DescendantWalker
- Direct Known Subclasses:
- DescendantOrSelfWalker
- public class DescendantWalker
- extends AxesWalker
Walker for the 'descendant' axes.
- Author:
- Copyright © 2001 BEA Systems, Inc. All Rights Reserved.
- See Also:
- XPath axes descriptions, Serialized Form
Method Summary
|
org.w3c.dom.Node |
firstChild()
Moves the TreeWalker to the first visible child of the
current node, and returns the new node. |
protected int |
getLevelMax()
Tell what's the maximum level this axes can descend to. |
org.w3c.dom.Node |
nextSibling()
Moves the TreeWalker to the next sibling of the current
node, and returns the new node. |
org.w3c.dom.Node |
parentNode()
Moves to and returns the closest visible ancestor node of the current
node. |
void |
setRoot(org.w3c.dom.Node root)
Set the root node of the TreeWalker. |
Methods inherited from class weblogic.apache.xpath.axes.AxesWalker |
canTraverseOutsideSubtree,
checkOKToTraverse,
clone,
getArgLen,
getCurrentNode,
getExpandEntityReferences,
getFilter,
getLastPos,
getNextLevelAmount,
getNextNode,
getNextWalker,
getPrevWalker,
getRoot,
getStepType,
init,
isFastWalker,
lastChild,
nextNode,
previousNode,
previousSibling,
setCurrentIfNotNull,
setCurrentNode,
setNextWalker,
setPrevWalker,
toString |
Methods inherited from class weblogic.apache.xpath.axes.PredicatedNodeTest |
acceptNode,
countProximityPosition,
getLocPathIterator,
getPredicateCount,
getPredicateIndex,
getProximityPosition,
getProximityPosition,
getProximityPosition,
initPredicateInfo,
initProximityPosition,
isReverseAxes,
nodeToString,
resetProximityPositions,
setLocPathIterator,
setPredicateCount |
Methods inherited from class java.lang.Object |
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
wait,
wait,
wait |
DescendantWalker
public DescendantWalker(LocPathIterator locPathIterator)
- Construct an DescendantWalker using a LocPathIterator.
- Parameters:
locPathIterator
- The location path iterator that 'owns' this walker.
setRoot
public void setRoot(org.w3c.dom.Node root)
- Set the root node of the TreeWalker.
- Parameters:
root
- The context node of this step.- Overrides:
- setRoot in class AxesWalker
parentNode
public org.w3c.dom.Node parentNode()
- Moves to and returns the closest visible ancestor node of the current
node. If the search for parentNode attempts to step upward from the
TreeWalker's root node, or if it fails to find a visible ancestor
node, this method retains the current position and returns null.
- Returns:
- The new parent node, or null if the current node has no parent
in the TreeWalker's logical view.
- Overrides:
- parentNode in class AxesWalker
firstChild
public org.w3c.dom.Node firstChild()
- Moves the
TreeWalker
to the first visible child of the
current node, and returns the new node. If the current node has no
visible children, returns null
, and retains the current
node.
- Returns:
- The new node, or
null
if the current node has no
visible children in the TreeWalker's logical view. - Overrides:
- firstChild in class AxesWalker
nextSibling
public org.w3c.dom.Node nextSibling()
- Moves the
TreeWalker
to the next sibling of the current
node, and returns the new node. If the current node has no visible
next sibling, returns null
, and retains the current node.
- Returns:
- The new node, or
null
if the current node has no
next sibling in the TreeWalker's logical view. - Overrides:
- nextSibling in class AxesWalker
getLevelMax
protected int getLevelMax()
- Tell what's the maximum level this axes can descend to.
- Returns:
- Short.MAX_VALUE.
- Overrides:
- getLevelMax in class AxesWalker
WebLogic classes and methods that do not appear in this reference are not public and are not supported.