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

Direct Known Subclasses:

AncestorWalker, PrecedingSiblingWalker, PrecedingWalker

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.axes.AxesWalker

FEATURE_NODETESTFILTER

Fields inherited from class org.apache.xpath.patterns.NodeTest

SCORE_NODETEST, SCORE_NONE, SCORE_NSWILD, SCORE_OTHER, SCORE_QNAME, SHOW_BYFUNCTION, SHOW_NAMESPACE, SUPPORTS_PRE_STRIPPING, WILD

Constructor Summary

ReverseAxesWalker(LocPathIterator locPathIterator)
Construct an AxesWalker using a LocPathIterator.

Method Summary

int	getLastPos(XPathContext xctxt) Get the number of nodes in this node list.
boolean	isReverseAxes() Tells if this is a reverse axes.
void	setRoot(Node root) Set the root node of the TreeWalker.

Methods inherited from class org.apache.xpath.axes.AxesWalker

canTraverseOutsideSubtree, clone, firstChild, getCurrentNode, getExpandEntityReferences, getFilter, getNextWalker, getPrevWalker, getRoot, init, lastChild, nextNode, nextSibling, parentNode, previousNode, previousSibling, setCurrentNode, setNextWalker, setPrevWalker, toString

Methods inherited from class org.apache.xpath.axes.PredicatedNodeTest

acceptNode, getLocPathIterator, getPredicateCount, getPredicateIndex, getProximityPosition, getProximityPosition, initProximityPosition, resetProximityPositions, setLocPathIterator, setPredicateCount

Methods inherited from class org.apache.xpath.patterns.NodeTest

debugWhatToShow, execute, execute, getDefaultScore, getLocalName, getNamespace, getWhatToShow, initNodeTest, initNodeTest

Methods inherited from class org.apache.xpath.Expression

assertion, error, setSourceLocator, warn

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ReverseAxesWalker

public ReverseAxesWalker(LocPathIterator locPathIterator)

Construct an AxesWalker using a LocPathIterator.

Parameters:

locPathIterator - The location path iterator that 'owns' this walker.

Method Detail

isReverseAxes

public boolean isReverseAxes()

Tells if this is a reverse axes. Overrides AxesWalker#isReverseAxes.

Returns:

true for this class.

Overrides:

isReverseAxes in class PredicatedNodeTest

setRoot

public void setRoot(Node root)

Set the root node of the TreeWalker.

Parameters:

root - The context node of this step.

Overrides:

setRoot in class AxesWalker

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