Package org.apache.xpath.axes
Class SelfIteratorNoPredicate
- java.lang.Object
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- org.apache.xpath.Expression
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- org.apache.xpath.patterns.NodeTest
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- org.apache.xpath.axes.PredicatedNodeTest
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- org.apache.xpath.axes.LocPathIterator
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- org.apache.xpath.axes.SelfIteratorNoPredicate
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- All Implemented Interfaces:
java.io.Serializable
,java.lang.Cloneable
,javax.xml.transform.SourceLocator
,DTMIterator
,PathComponent
,SubContextList
,ExpressionNode
,XPathVisitable
public class SelfIteratorNoPredicate extends LocPathIterator
This class implements an optimized iterator for "." patterns, that is, the self axes without any predicates.- See Also:
LocPathIterator
, Serialized Form
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Field Summary
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Fields inherited from class org.apache.xpath.axes.LocPathIterator
m_lastFetched
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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
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Fields inherited from interface org.apache.xml.dtm.DTMIterator
FILTER_ACCEPT, FILTER_REJECT, FILTER_SKIP
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Constructor Summary
Constructors Constructor Description SelfIteratorNoPredicate()
Create a SelfIteratorNoPredicate 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
getLastPos(XPathContext xctxt)
Get the index of the last node that can be itterated to.int
nextNode()
Returns the next node in the set and advances the position of the iterator in the set.-
Methods inherited from class org.apache.xpath.axes.LocPathIterator
allowDetachToRelease, asIterator, bool, callVisitors, cloneWithReset, detach, execute, executeCharsToContentHandler, getAnalysisBits, getAxis, getContext, getCurrentContextNode, getCurrentNode, getCurrentPos, getDTM, getDTMManager, getExpandEntityReferences, getFilter, getFoundLast, getIsTopLevel, getLength, getPrefixResolver, getRoot, getWhatToShow, getXPathContext, incrementCurrentPos, isDocOrdered, isFresh, isMutable, isNodesetExpr, item, previousNode, reset, runTo, setCurrentContextNode, setCurrentPos, setEnvironment, setIsTopLevel, setItem, setRoot, setShouldCacheNodes, size
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Methods inherited from class org.apache.xpath.axes.PredicatedNodeTest
acceptNode, callPredicateVisitors, canTraverseOutsideSubtree, clone, deepEquals, fixupVariables, getLocPathIterator, getPredicate, getPredicateCount, getPredicateIndex, getProximityPosition, getProximityPosition, initProximityPosition, isReverseAxes, resetProximityPositions, setLocPathIterator, setPredicateCount
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Methods inherited from class org.apache.xpath.patterns.NodeTest
debugWhatToShow, execute, execute, getDefaultScore, getLocalName, getNamespace, getNodeTypeTest, getStaticScore, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow
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Methods inherited from class org.apache.xpath.Expression
asIteratorRaw, assertion, error, execute, exprAddChild, exprGetChild, exprGetNumChildren, exprGetParent, exprSetParent, getColumnNumber, getExpressionOwner, getLineNumber, getPublicId, getSystemId, isStableNumber, num, warn, xstr
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Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.apache.xml.dtm.DTMIterator
clone
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Method Detail
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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 a NodeIterator is created, the first call to nextNode() returns the first node in the set.- Specified by:
nextNode
in interfaceDTMIterator
- Specified by:
nextNode
in classLocPathIterator
- Returns:
- The next
Node
in the set being iterated over, ornull
if there are no more members in that set.
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asNode
public int asNode(XPathContext xctxt) throws javax.xml.transform.TransformerException
Return the first node out of the nodeset, if this expression is a nodeset expression. This is the default implementation for nodesets. Derived classes should try and override this and return a value without having to do a clone operation.- Overrides:
asNode
in classLocPathIterator
- Parameters:
xctxt
- The XPath runtime context.- Returns:
- the first node out of the nodeset, or DTM.NULL.
- Throws:
javax.xml.transform.TransformerException
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getLastPos
public int getLastPos(XPathContext xctxt)
Get the index of the last node that can be itterated to. This probably will need to be overridded by derived classes.- Specified by:
getLastPos
in interfaceSubContextList
- Overrides:
getLastPos
in classLocPathIterator
- Parameters:
xctxt
- XPath runtime context.- Returns:
- the index of the last node that can be itterated to.
- See Also:
PredicatedNodeTest.getLastPos(XPathContext)
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