org.apache.xpath.axes

Class WalkingIteratorSorted

Implemented Interfaces:
Cloneable, DTMIterator, ExpressionOwner, java.io.Serializable, ExpressionNode, PathComponent, SourceLocator, SubContextList, XPathVisitable

public class WalkingIteratorSorted
extends WalkingIterator

This class iterates over set of nodes that needs to be sorted.
See Also:
Serialized Form

Field Summary

Fields inherited from class org.apache.xpath.axes.LocPathIterator

m_lastFetched

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

Fields inherited from interface org.apache.xml.dtm.DTMIterator

FILTER_ACCEPT, FILTER_REJECT, FILTER_SKIP

Constructor Summary

WalkingIteratorSorted(PrefixResolver nscontext)
Create a WalkingIteratorSorted object.

Method Summary

void
fixupVariables(java.util.Vector vars, int globalsSize)
This function is used to perform some extra analysis of the iterator.
boolean
isDocOrdered()
Returns true if all the nodes in the iteration well be returned in document order.

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

callVisitors, clone, deepEquals, detach, fixupVariables, getAnalysisBits, getExpression, getFirstWalker, getLastUsedWalker, nextNode, reset, setExpression, setFirstWalker, setLastUsedWalker, setRoot

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

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

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

acceptNode, callPredicateVisitors, canTraverseOutsideSubtree, clone, deepEquals, fixupVariables, getLastPos, getLocPathIterator, getPredicate, getPredicateCount, getPredicateIndex, getProximityPosition, getProximityPosition, initProximityPosition, isReverseAxes, resetProximityPositions, setLocPathIterator, setPredicateCount

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

callVisitors, debugWhatToShow, deepEquals, execute, execute, execute, fixupVariables, 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, canTraverseOutsideSubtree, deepEquals, error, execute, execute, execute, execute, executeCharsToContentHandler, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, fixupVariables, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isNodesetExpr, isStableNumber, num, warn, xstr

Constructor Details

WalkingIteratorSorted

public WalkingIteratorSorted(PrefixResolver nscontext)
Create a WalkingIteratorSorted object.
Parameters:
nscontext - The namespace context for this iterator, should be OK if null.

Method Details

fixupVariables

public void fixupVariables(java.util.Vector vars,
                           int globalsSize)
This function is used to perform some extra analysis of the iterator.
Overrides:
fixupVariables in interface WalkingIterator
Parameters:
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).

isDocOrdered

public boolean isDocOrdered()
Returns true if all the nodes in the iteration well be returned in document order.
Specified by:
isDocOrdered in interface DTMIterator
Overrides:
isDocOrdered in interface LocPathIterator
Returns:
true as a default.

Copyright B) 2004 Apache XML Project. All Rights Reserved.