org.apache.xpath.axes
Class OneStepIteratorForward

java.lang.Object
  |
  +--org.apache.xpath.Expression
        |
        +--org.apache.xpath.patterns.NodeTest
              |
              +--org.apache.xpath.axes.PredicatedNodeTest
                    |
                    +--org.apache.xpath.axes.LocPathIterator
                          |
                          +--org.apache.xpath.axes.ChildTestIterator
                                |
                                +--org.apache.xpath.axes.OneStepIteratorForward

public class OneStepIteratorForward
extends ChildTestIterator

**For advanced use only** 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.)

See Also:
org.apache.xpath.axes.WalkerFactory#newLocPathIterator, Serialized Form

Fields inherited from class org.apache.xpath.axes.LocPathIterator
m_lastFetched
 
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
 
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.
 void setRoot(int context, java.lang.Object environment)
          Initialize the context values for this expression after it is cloned.
 
Methods inherited from class org.apache.xpath.axes.ChildTestIterator
cloneWithReset, nextNode
 
Methods inherited from class org.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, runTo, setCurrentContextNode, setCurrentPos, setEnvironment, setIsTopLevel, setItem, setLast, setShouldCacheNodes, size
 
Methods inherited from class org.apache.xpath.axes.PredicatedNodeTest
acceptNode, canTraverseOutsideSubtree, clone, fixupVariables, getLocPathIterator, getPredicateCount, getPredicateIndex, getProximityPosition, getProximityPosition, initProximityPosition, isReverseAxes, resetProximityPositions, setLocPathIterator, setPredicateCount
 
Methods inherited from class org.apache.xpath.patterns.NodeTest
debugWhatToShow, execute, execute, getDefaultScore, getLocalName, getNamespace, getNodeTypeTest, getStaticScore, initNodeTest, initNodeTest, setLocalName, setNamespace, setStaticScore, setWhatToShow
 
Methods inherited from class org.apache.xpath.Expression
assertion, error, executeCharsToContentHandler, isStableNumber, num, setSourceLocator, warn, xstr
 
Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

OneStepIteratorForward

public OneStepIteratorForward(int axis)
Create a OneStepIterator object that will just traverse the self axes.
Parameters:
axis - One of the org.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

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


Copyright © 2001 Apache XML Project. All Rights Reserved.