WebLogic Server 7.0 API Reference: Class ChildIterator

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weblogic.apache.xpath.axes
Class ChildIterator

java.lang.Object
  |
  +--weblogic.apache.xpath.Expression
        |
        +--weblogic.apache.xpath.patterns.NodeTest
              |
              +--weblogic.apache.xpath.axes.PredicatedNodeTest
                    |
                    +--weblogic.apache.xpath.axes.LocPathIterator
                          |
                          +--weblogic.apache.xpath.axes.ChildIterator

public class ChildIterator
extends LocPathIterator

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

This class is based on an implementation from the Apache XML Project. In future releases the XML parser, XSLT processor, and associated classes will likely be updated to be based on a later version of the Apache implementations. Since Apache does not guarantee backwards compatibility between versions of their software, we cannot guarantee backwards compatibility of any of the classes contained in the weblogic.apache package or sub-packages.

See Also:: WalkerFactory.newDTMIterator(weblogic.apache.xpath.compiler.Compiler, int, boolean), Serialized Form

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

m_cdtm,  
m_clones,  
m_context,  
m_currentContextNode,  
m_execContext,  
m_last,  
m_lastFetched,  
m_next,  
m_prefixResolver

Fields inherited from class weblogic.apache.xpath.axes.PredicatedNodeTest

m_foundLast,  
m_lpi,  
m_predCount,  
m_proximityPositions

Fields inherited from class weblogic.apache.xpath.patterns.NodeTest

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

Fields inherited from class weblogic.apache.xpath.Expression

m_slocator

Method Summary
`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 weblogic.apache.xpath.axes.LocPathIterator

allowDetachToRelease, 
asIterator, 
bool, 
cloneWithReset, 
detach, 
execute, 
findLastPos, 
getCachedNodes, 
getContext, 
getCurrentContextNode, 
getCurrentNode, 
getCurrentPos, 
getDTM, 
getDTMManager, 
getExpandEntityReferences, 
getFilter, 
getFoundLast, 
getIsTopLevel, 
getLast, 
getLastPos, 
getLength, 
getPrefixResolver, 
getRoot, 
getWhatToShow, 
getXPathContext, 
isDocOrdered, 
isFresh, 
isMutable, 
isNodesetExpr, 
item, 
previousNode, 
reset, 
returnNextNode, 
runTo, 
setCurrentContextNode, 
setCurrentPos, 
setEnvironment, 
setIsTopLevel, 
setItem, 
setLast, 
setNextPosition, 
setRoot, 
setShouldCacheNodes, 
size

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

acceptNode, 
canTraverseOutsideSubtree, 
clone, 
countProximityPosition, 
fixupVariables, 
getLocPathIterator, 
getPredicateCount, 
getPredicateIndex, 
getProximityPosition, 
getProximityPosition, 
getProximityPosition, 
initPredicateInfo, 
initProximityPosition, 
isReverseAxes, 
nodeToString, 
resetProximityPositions, 
setLocPathIterator, 
setPredicateCount

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

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

Methods inherited from class weblogic.apache.xpath.Expression

assertion, 
error, 
executeCharsToContentHandler, 
isStableNumber, 
num, 
setSourceLocator, 
warn, 
xstr

Methods inherited from class java.lang.Object

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

Method Detail

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.

WARNING: Do not mutate this class from this function!

Parameters:: xctxt - The XPath runtime context.
Returns:: the first node out of the nodeset, or DTM.NULL.
Overrides:: asNode in class LocPathIterator

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.

Returns:: The next Node in the set being iterated over, or null if there are no more members in that set.
Overrides:: nextNode in class LocPathIterator

getAxis

public int getAxis()

Returns the axis being iterated, if it is known.

Returns:: Axis.CHILD, etc., or -1 if the axis is not known or is of multiple types.
Overrides:: getAxis in class LocPathIterator