org.apache.xalan.xsltc.dom
Class StepIterator

java.lang.Object
  |
  +--org.apache.xml.dtm.ref.DTMAxisIteratorBase
        |
        +--org.apache.xalan.xsltc.dom.StepIterator

Direct Known Subclasses:

FilteredStepIterator

public class StepIterator

extends DTMAxisIteratorBase

A step iterator is used to evaluate expressions like "BOOK/TITLE". A better name for this iterator would have been ParentIterator since both "BOOK" and "TITLE" are steps in XPath lingo. Step iterators are constructed from two other iterators which we are going to refer to as "outer" and "inner". Every node from the outer iterator (the one for BOOK in our example) is used to initialize the inner iterator. After this initialization, every node from the inner iterator is returned (in essence, implementing a "nested loop").

Constructor Summary

StepIterator(DTMAxisIterator source, DTMAxisIterator iterator)

Method Summary

DTMAxisIterator	cloneIterator()
void	gotoMark()
int	next()
DTMAxisIterator	reset()
void	setMark()
void	setRestartable(boolean isRestartable)
DTMAxisIterator	setStartNode(int node)

Methods inherited from class org.apache.xml.dtm.ref.DTMAxisIteratorBase

getAxis, getLast, getNodeByPosition, getPosition, getStartNode, includeSelf, isDocOrdered, isReverse

Methods inherited from class java.lang.Object

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

Constructor Detail

StepIterator

public StepIterator(DTMAxisIterator source,
                    DTMAxisIterator iterator)

Method Detail

setRestartable

public void setRestartable(boolean isRestartable)

Overrides:

setRestartable in class DTMAxisIteratorBase

cloneIterator

public DTMAxisIterator cloneIterator()

Overrides:

cloneIterator in class DTMAxisIteratorBase

setStartNode

public DTMAxisIterator setStartNode(int node)

reset

public DTMAxisIterator reset()

Overrides:

reset in class DTMAxisIteratorBase

next

public int next()

setMark

public void setMark()

gotoMark

public void gotoMark()