org.apache.xpath.axes
Class ReverseAxesWalker

java.lang.Object
  |
  +--org.apache.xpath.Expression
        |
        +--org.apache.xpath.patterns.NodeTest
              |
              +--org.apache.xpath.axes.PredicatedNodeTest
                    |
                    +--org.apache.xpath.axes.AxesWalker
                          |
                          +--org.apache.xpath.axes.ReverseAxesWalker

public class ReverseAxesWalker
extends AxesWalker

Walker for a reverse axes.

See Also:
XPath 2.4 Predicates, Serialized Form

Fields inherited from class org.apache.xpath.patterns.NodeTest
SCORE_NODETEST, SCORE_NONE, SCORE_NSWILD, SCORE_OTHER, SCORE_QNAME, SHOW_BYFUNCTION, SUPPORTS_PRE_STRIPPING, WILD
 
Method Summary
 void detach()
          Detaches the walker from the set which it iterated over, releasing any computational resources and placing the iterator in the INVALID state.
 int getLastPos(XPathContext xctxt)
          Get the number of nodes in this node list.
 boolean isDocOrdered()
          Returns true if all the nodes in the iteration well be returned in document order.
 boolean isReverseAxes()
          Tells if this is a reverse axes.
 void setRoot(int root)
          Set the root node of the TreeWalker.
 
Methods inherited from class org.apache.xpath.axes.AxesWalker
callVisitors, clone, deepEquals, getAnalysisBits, getAxis, getCurrentNode, getDTM, getExpression, getNextWalker, getPrevWalker, getRoot, init, nextNode, setDefaultDTM, setExpression, setNextWalker, setPrevWalker, wi
 
Methods inherited from class org.apache.xpath.axes.PredicatedNodeTest
acceptNode, callPredicateVisitors, canTraverseOutsideSubtree, fixupVariables, getLocPathIterator, getPredicate, getPredicateCount, getPredicateIndex, getProximityPosition, getProximityPosition, initProximityPosition, resetProximityPositions, setLocPathIterator, setPredicateCount
 
Methods inherited from class org.apache.xpath.patterns.NodeTest
debugWhatToShow, execute, execute, execute, getDefaultScore, getLocalName, getNamespace, getNodeTypeTest, getStaticScore, getWhatToShow, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow
 
Methods inherited from class org.apache.xpath.Expression
asIterator, asIteratorRaw, asNode, assertion, bool, error, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, num, warn, xstr
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

setRoot

public void setRoot(int root)
Set the root node of the TreeWalker. (Not part of the DOM2 TreeWalker interface).
Parameters:
root - The context node of this step.
Overrides:
setRoot in class AxesWalker

detach

public void detach()
Detaches the walker from the set which it iterated over, releasing any computational resources and placing the iterator in the INVALID state.
Overrides:
detach in class AxesWalker

isReverseAxes

public boolean isReverseAxes()
Tells if this is a reverse axes. Overrides AxesWalker#isReverseAxes.
Returns:
true for this class.
Overrides:
isReverseAxes in class PredicatedNodeTest

getLastPos

public int getLastPos(XPathContext xctxt)
Get the number of nodes in this node list. The function is probably ill named?
Parameters:
xctxt - The XPath runtime context.
Returns:
the number of nodes in this node list.
Overrides:
getLastPos in class AxesWalker

isDocOrdered

public boolean isDocOrdered()
Returns true if all the nodes in the iteration well be returned in document order. Warning: This can only be called after setRoot has been called!
Returns:
false.
Overrides:
isDocOrdered in class AxesWalker


Copyright 2006 Apache XML Project. All Rights Reserved.