Package org.htmlunit.xpath.axes
Class ChildIterator
- java.lang.Object
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- org.htmlunit.xpath.Expression
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- org.htmlunit.xpath.patterns.NodeTest
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- org.htmlunit.xpath.axes.PredicatedNodeTest
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- org.htmlunit.xpath.axes.LocPathIterator
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- org.htmlunit.xpath.axes.ChildIterator
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- All Implemented Interfaces:
java.lang.Cloneable
,javax.xml.transform.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
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Field Summary
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Fields inherited from class org.htmlunit.xpath.axes.LocPathIterator
m_cdtm, m_clones, m_context, m_currentContextNode, m_execContext, m_lastFetched, m_length, m_pos, m_stackFrame
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Fields inherited from class org.htmlunit.xpath.axes.PredicatedNodeTest
DEBUG_PREDICATECOUNTING, m_foundLast, m_lpi, m_predCount, m_predicateIndex, m_proximityPositions
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Fields inherited from class org.htmlunit.xpath.patterns.NodeTest
m_name, m_whatToShow, SCORE_NODETEST, SCORE_NONE, SCORE_NSWILD, SCORE_OTHER, SCORE_QNAME, SHOW_BYFUNCTION, WILD
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Fields inherited from interface org.htmlunit.xpath.xml.dtm.DTMIterator
FILTER_ACCEPT, FILTER_SKIP
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Constructor Summary
Constructors Constructor Description ChildIterator(int analysis)
Create a ChildIterator object.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method 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 org.htmlunit.xpath.axes.LocPathIterator
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
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Methods inherited from class org.htmlunit.xpath.axes.PredicatedNodeTest
acceptNode, callPredicateVisitors, canTraverseOutsideSubtree, clone, countProximityPosition, deepEquals, executePredicates, getPredicate, getPredicateCount, getProximityPosition, getProximityPosition, getProximityPosition, initPredicateInfo, initProximityPosition, isReverseAxes, nodeToString, resetProximityPositions, setLocPathIterator, setPredicateCount
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Methods inherited from class org.htmlunit.xpath.patterns.NodeTest
calcScore, execute, execute, getLocalName, getNamespace, getNodeTypeTest, getStaticScore, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow
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Methods inherited from class org.htmlunit.xpath.Expression
assertion, error, execute, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isSameClass, isStableNumber, num
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Methods inherited from class java.lang.Object
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.htmlunit.xpath.xml.dtm.DTMIterator
clone
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Method Detail
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asNode
public int asNode(XPathContext xctxt)
Return the first node out of the nodeset, if this expression is a nodeset expression.- Overrides:
asNode
in classLocPathIterator
- Parameters:
xctxt
- The XPath runtime context.- Returns:
- the first node out of the nodeset, or DTM.NULL.
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nextNode
public int nextNode()
Returns the next node in the set and advances the position of the iterator in the set. After aDTMIterator
has setRoot called, the first call tonextNode()
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 interfaceDTMIterator
- Specified by:
nextNode
in classLocPathIterator
- Returns:
- The next node handle in the set being iterated over, or
DTM.NULL
if there are no more members in that set.
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getAxis
public int getAxis()
Returns the axis being iterated, if it is known.- Specified by:
getAxis
in interfaceDTMIterator
- Overrides:
getAxis
in classLocPathIterator
- Returns:
- Axis.CHILD, etc., or -1 if the axis is not known or is of multiple types.
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