Class AttributeIterator

java.lang.Object

org.htmlunit.xpath.Expression

org.htmlunit.xpath.patterns.NodeTest

org.htmlunit.xpath.axes.PredicatedNodeTest

org.htmlunit.xpath.axes.LocPathIterator

org.htmlunit.xpath.axes.BasicTestIterator

org.htmlunit.xpath.axes.ChildTestIterator

org.htmlunit.xpath.axes.AttributeIterator

All Implemented Interfaces:

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

public class AttributeIterator
extends ChildTestIterator

This class implements an optimized iterator for attribute axes patterns.

Field Summary

Fields inherited from class ChildTestIterator

m_traverser

Fields inherited from class LocPathIterator

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

Fields inherited from class PredicatedNodeTest

DEBUG_PREDICATECOUNTING, m_foundLast, m_lpi, m_predCount, m_predicateIndex, m_proximityPositions

Fields inherited from class NodeTest

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

Fields inherited from interface DTMIterator

FILTER_ACCEPT, FILTER_SKIP

Constructor Summary

Constructors

Constructor	Description
AttributeIterator(Compiler compiler, int opPos, int analysis)	Create a AttributeIterator object.

Method Summary

Modifier and Type	Method	Description
int	getAxis()	Returns the axis being iterated, if it is known.
protected int	getNextNode()	Get the next node via getNextXXX.

Methods inherited from class ChildTestIterator

cloneWithReset, detach, setRoot

Methods inherited from class BasicTestIterator

nextNode

Methods inherited from class LocPathIterator

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

Methods inherited from class PredicatedNodeTest

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

Methods inherited from class NodeTest

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

Methods inherited from class Expression

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

Methods inherited from class Object

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

Methods inherited from interface DTMIterator

clone

Constructor Details

AttributeIterator

AttributeIterator(Compiler compiler,
 int opPos,
 int analysis)
           throws TransformerException

Create a AttributeIterator object.

Parameters:

compiler - A reference to the Compiler that contains the op map.

opPos - The position within the op map, which contains the location path expression for this iterator.

Throws:

TransformerException - if any

Method Details

getNextNode

protected int getNextNode()

Get the next node via getNextXXX. Bottlenecked for derived class override.

Overrides:

getNextNode in class ChildTestIterator

Returns:

The next node on the axis, or DTM.NULL.

getAxis

public int getAxis()

Returns the axis being iterated, if it is known.

Specified by:

getAxis in interface DTMIterator

Overrides:

getAxis in class ChildTestIterator

Returns:

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