org.apache.xpath.axes
Class WalkingIterator
- Cloneable, DTMIterator, ExpressionOwner, java.io.Serializable, ExpressionNode, PathComponent, SourceLocator, SubContextList, XPathVisitable
public class WalkingIterator
Location path iterator that uses Walkers.
allowDetachToRelease , asIterator , asNode , bool , callVisitors , cloneWithReset , detach , execute , executeCharsToContentHandler , getAnalysisBits , getAxis , getContext , getCurrentContextNode , getCurrentNode , getCurrentPos , getDTM , getDTMManager , getExpandEntityReferences , getFilter , getFoundLast , getIsTopLevel , getLastPos , getLength , getPrefixResolver , getRoot , getWhatToShow , getXPathContext , incrementCurrentPos , isDocOrdered , isFresh , isMutable , isNodesetExpr , item , nextNode , previousNode , reset , runTo , setCurrentContextNode , setCurrentPos , setEnvironment , setIsTopLevel , setItem , setRoot , setShouldCacheNodes , size |
acceptNode , callPredicateVisitors , canTraverseOutsideSubtree , clone , deepEquals , fixupVariables , getLastPos , getLocPathIterator , getPredicate , getPredicateCount , getPredicateIndex , getProximityPosition , getProximityPosition , initProximityPosition , isReverseAxes , resetProximityPositions , setLocPathIterator , setPredicateCount |
callVisitors , debugWhatToShow , deepEquals , execute , execute , execute , fixupVariables , getDefaultScore , getLocalName , getNamespace , getNodeTypeTest , getStaticScore , getWhatToShow , initNodeTest , initNodeTest , setLocalName , setNamespace , setStaticScore , setWhatToShow |
asIterator , asIteratorRaw , asNode , assertion , bool , canTraverseOutsideSubtree , deepEquals , error , execute , execute , execute , execute , executeCharsToContentHandler , exprAddChild , exprGetChild , exprGetNumChildren , exprGetParent , exprSetParent , fixupVariables , getColumnNumber , getExpressionOwner , getLineNumber , getPublicId , getSystemId , isNodesetExpr , isStableNumber , num , warn , xstr |
WalkingIterator
public WalkingIterator(PrefixResolver nscontext)
Create a WalkingIterator object.
nscontext
- The namespace context for this iterator,
should be OK if null.
clone
public Object clone()
throws CloneNotSupportedException
Get a cloned WalkingIterator that holds the same
position as this iterator.
- clone in interface DTMIterator
- clone in interface PredicatedNodeTest
- A clone of this iterator that holds the same node position.
detach
public void detach()
Detaches the iterator from the set which it iterated over, releasing
any computational resources and placing the iterator in the INVALID
state. Afterdetach
has been invoked, calls to
nextNode
orpreviousNode
will raise the
exception INVALID_STATE_ERR.
- detach in interface DTMIterator
- detach in interface LocPathIterator
fixupVariables
public void fixupVariables(java.util.Vector vars,
int globalsSize)
This function is used to fixup variables from QNames to stack frame
indexes at stylesheet build time.
- fixupVariables in interface PredicatedNodeTest
vars
- List of QNames that correspond to variables. This list
should be searched backwards for the first qualified name that
corresponds to the variable reference qname. The position of the
QName in the vector from the start of the vector will be its position
in the stack frame (but variables above the globalsTop value will need
to be offset to the current stack frame).
getFirstWalker
public final AxesWalker getFirstWalker()
Get the head of the walker list.
- The head of the walker list, or null
if this iterator does not implement walkers.
getLastUsedWalker
public final AxesWalker getLastUsedWalker()
Get the last used walker.
- The last used walker, or null.
nextNode
public int nextNode()
Returns the next node in the set and advances the position of the
iterator in the set. After a NodeIterator is created, the first call
to nextNode() returns the first node in the set.
- nextNode in interface DTMIterator
- nextNode in interface LocPathIterator
- The next
Node
in the set being iterated over, or
null
if there are no more members in that set.
setFirstWalker
public final void setFirstWalker(AxesWalker walker)
Set the head of the walker list.
walker
- Should be a valid AxesWalker.
setLastUsedWalker
public final void setLastUsedWalker(AxesWalker walker)
Set the last used walker.
walker
- The last used walker, or null.
Copyright B) 2004 Apache XML Project. All Rights Reserved.