WebLogic Server 7.0 API Reference: Class OneStepIteratorForward

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weblogic.apache.xpath.axes
Class OneStepIteratorForward

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.ChildTestIterator
                                |
                                +--weblogic.apache.xpath.axes.OneStepIteratorForward

public class OneStepIteratorForward
extends ChildTestIterator

This class implements a general iterator for those LocationSteps with only one step, and perhaps a predicate, that only go forward (i.e. it can not be used with ancestors, preceding, etc.)

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

Field Summary
`protected int`	`m_axis` The traversal axis from where the nodes will be filtered.

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

m_traverser

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

Constructor Summary
`OneStepIteratorForward(int axis)` Create a OneStepIterator object that will just traverse the self axes.

Method Summary
`int`	`getAxis()` Returns the axis being iterated, if it is known.
`protected int`	`getNextNode()` Get the next node via getFirstAttribute && getNextAttribute.
`void`	`setRoot(int context, java.lang.Object environment)` Initialize the context values for this expression after it is cloned.

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

cloneWithReset, 
nextNode

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

allowDetachToRelease, 
asIterator, 
asNode, 
bool, 
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, 
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

Field Detail

m_axis

protected int m_axis

The traversal axis from where the nodes will be filtered.

Constructor Detail

OneStepIteratorForward

public OneStepIteratorForward(int axis)

Create a OneStepIterator object that will just traverse the self axes.

Parameters:: axis - One of the weblogic.apache.xml.dtm.Axis integers.
Throws:: javax.xml.transform.TransformerException -

Method Detail

setRoot

public void setRoot(int context,
                    java.lang.Object environment)

Initialize the context values for this expression after it is cloned.

Parameters:: execContext - The XPath runtime context for this transformation.
Overrides:: setRoot in class ChildTestIterator

getNextNode

protected int getNextNode()

Get the next node via getFirstAttribute && getNextAttribute.

Overrides:: getNextNode in class ChildTestIterator

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 ChildTestIterator