weblogic.apache.xalan.transformer
Class KeyWalker
java.lang.Object
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+--weblogic.apache.xpath.Expression
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+--weblogic.apache.xpath.patterns.NodeTest
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+--weblogic.apache.xpath.axes.PredicatedNodeTest
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+--weblogic.apache.xpath.axes.AxesWalker
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+--weblogic.apache.xpath.axes.DescendantWalker
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+--weblogic.apache.xpath.axes.DescendantOrSelfWalker
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+--weblogic.apache.xalan.transformer.KeyWalker
- public class KeyWalker
- extends DescendantOrSelfWalker
Walker for a Key() function.
This class is based on an implementation from the Apache XML
Project. In future releases the XML parser, XSLT processor, and
associated classes will likely be updated to be based on a later
version of the Apache implementations. Since Apache does not guarantee
backwards compatibility between versions of their software, we cannot
guarantee backwards compatibility of any of the classes contained in
the weblogic.apache package or sub-packages.
- See Also:
- Serialized Form
Method Summary
|
short |
acceptNode(org.w3c.dom.Node testNode)
Test whether a specified node is visible in the logical view of a
TreeWalker or NodeIterator. |
protected org.w3c.dom.Node |
getNextNode()
Get the next node in document order on the axes. |
org.w3c.dom.Node |
nextNode()
Moves the TreeWalker to the next visible node in document
order relative to the current node, and returns the new 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,
getNextWalker,
getPrevWalker,
getRoot,
getStepType,
init,
isFastWalker,
lastChild,
previousNode,
previousSibling,
setCurrentIfNotNull,
setCurrentNode,
setNextWalker,
setPrevWalker,
toString |
Methods inherited from class weblogic.apache.xpath.axes.PredicatedNodeTest |
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 |
KeyWalker
public KeyWalker(LocPathIterator locPathIterator)
- Construct a KeyWalker using a LocPathIterator.
- Parameters:
locPathIterator:
- this is usually a KeyIterator
setRoot
public void setRoot(org.w3c.dom.Node root)
- Set the root node of the TreeWalker.
- Parameters:
root
- Document root node- Overrides:
- setRoot in class DescendantOrSelfWalker
getNextNode
protected org.w3c.dom.Node getNextNode()
- Get the next node in document order on the axes.
- Returns:
- The next node found or null.
- Overrides:
- getNextNode in class AxesWalker
acceptNode
public short acceptNode(org.w3c.dom.Node testNode)
- Test whether a specified node is visible in the logical view of a
TreeWalker or NodeIterator. This function will be called by the
implementation of TreeWalker and NodeIterator; it is not intended to
be called directly from user code.
- Parameters:
testnode
- The node to check to see if it passes the filter or not.- Returns:
- a constant to determine whether the node is accepted,
rejected, or skipped, as defined above .
- Overrides:
- acceptNode in class PredicatedNodeTest
nextNode
public org.w3c.dom.Node nextNode()
- Moves the
TreeWalker
to the next visible node in document
order relative to the current node, and returns the new node. If the
current node has no next node, or if the search for nextNode attempts
to step upward from the TreeWalker's root node, returns
null
, and retains the current node.
- Returns:
- The new node, or
null
if the current node has no
next node in the TreeWalker's logical view. - Overrides:
- nextNode in class AxesWalker
WebLogic classes and methods that do not appear in this reference are not public and are not supported.