net.sourceforge.htmlunit.xpath.axes

Class ChildIterator

java.lang.Object

net.sourceforge.htmlunit.xpath.Expression

net.sourceforge.htmlunit.xpath.patterns.NodeTest

net.sourceforge.htmlunit.xpath.axes.PredicatedNodeTest

net.sourceforge.htmlunit.xpath.axes.LocPathIterator

net.sourceforge.htmlunit.xpath.axes.ChildIterator

All Implemented Interfaces:

Cloneable, SourceLocator, PathComponent, SubContextList, ExpressionNode, DTMIterator, XPathVisitable

public class ChildIterator
extends LocPathIterator

This class implements an optimized iterator for "node()" patterns, that is, any children of the context node.

See Also:

LocPathIterator

Field Summary

Fields inherited from class net.sourceforge.htmlunit.xpath.axes.LocPathIterator

m_allowDetach, m_cdtm, m_clones, m_context, m_currentContextNode, m_execContext, m_lastFetched, m_length, m_pos

Fields inherited from class net.sourceforge.htmlunit.xpath.axes.PredicatedNodeTest

m_foundLast, m_lpi, m_predCount, m_proximityPositions

Fields inherited from class net.sourceforge.htmlunit.xpath.patterns.NodeTest

m_name, m_whatToShow, SCORE_NODETEST, SCORE_NONE, SCORE_NSWILD, SCORE_OTHER, SCORE_QNAME, SHOW_BYFUNCTION, WILD

Fields inherited from interface net.sourceforge.htmlunit.xpath.xml.dtm.DTMIterator

FILTER_ACCEPT, FILTER_SKIP

Method Summary

Modifier and Type	Method and Description
int	asNode(XPathContext xctxt) Return the first node out of the nodeset, if this expression is a nodeset expression.
int	getAxis() Returns the axis being iterated, if it is known.
int	nextNode() Returns the next node in the set and advances the position of the iterator in the set.

Methods inherited from class net.sourceforge.htmlunit.xpath.axes.LocPathIterator

allowDetachToRelease, asIterator, bool, callVisitors, cloneWithReset, detach, execute, getAnalysisBits, getCurrentNode, getCurrentPos, getDTM, getDTMManager, getExpandEntityReferences, getIsTopLevel, getLastPos, getLength, getPrefixResolver, getRoot, getWhatToShow, getXPathContext, incrementCurrentPos, isDocOrdered, isFresh, item, previousNode, reset, returnNextNode, runTo, setCurrentPos, setIsTopLevel, setRoot, setShouldCacheNodes

Methods inherited from class net.sourceforge.htmlunit.xpath.axes.PredicatedNodeTest

acceptNode, callPredicateVisitors, canTraverseOutsideSubtree, clone, countProximityPosition, deepEquals, getPredicate, getPredicateCount, getProximityPosition, getProximityPosition, getProximityPosition, initPredicateInfo, initProximityPosition, isReverseAxes, nodeToString, resetProximityPositions, setLocPathIterator, setPredicateCount

Methods inherited from class net.sourceforge.htmlunit.xpath.patterns.NodeTest

calcScore, execute, execute, getLocalName, getNamespace, getNodeTypeTest, getStaticScore, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow

Methods inherited from class net.sourceforge.htmlunit.xpath.Expression

assertion, error, execute, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isSameClass, isStableNumber, num

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface net.sourceforge.htmlunit.xpath.xml.dtm.DTMIterator

clone

Method Detail

asNode

public int asNode(XPathContext xctxt)

Return the first node out of the nodeset, if this expression is a nodeset expression.

Overrides:

asNode in class LocPathIterator

Parameters:

xctxt - The XPath runtime context.

Returns:

the first node out of the nodeset, or DTM.NULL.

nextNode

public int nextNode()

Returns the next node in the set and advances the position of the iterator in the set. After a DTMIterator has setRoot called, the first call to nextNode() returns that root or (if it is rejected by the filters) the first node within its subtree which is not filtered out.

Specified by:

nextNode in interface DTMIterator

Specified by:

nextNode in class LocPathIterator

Returns:

The next node handle in the set being iterated over, or DTM.NULL if there are no more members in that set.

getAxis

public int getAxis()

Returns the axis being iterated, if it is known.

Specified by:

getAxis in interface DTMIterator

Overrides:

getAxis in class LocPathIterator

Returns:

Axis.CHILD, etc., or -1 if the axis is not known or is of multiple types.