org.apache.xalan.xsltc.dom
Class UnionIterator.LookAheadIterator

java.lang.Object
  org.apache.xalan.xsltc.dom.MultiValuedNodeHeapIterator.HeapNode
      org.apache.xalan.xsltc.dom.UnionIterator.LookAheadIterator

All Implemented Interfaces:

java.lang.Cloneable

Enclosing class:

UnionIterator

private final class UnionIterator.LookAheadIterator
extends MultiValuedNodeHeapIterator.HeapNode

Field Summary

DTMAxisIterator

iterator

Fields inherited from class org.apache.xalan.xsltc.dom.MultiValuedNodeHeapIterator.HeapNode

_isStartSet, _markedNode, _node

Constructor Summary

UnionIterator.LookAheadIterator(DTMAxisIterator iterator)

Method Summary

MultiValuedNodeHeapIterator.HeapNode	cloneHeapNode() Creates a deep copy of this MultiValuedNodeHeapIterator.HeapNode.
void	gotoMark() Restores the current node remembered by MultiValuedNodeHeapIterator.HeapNode.setMark().
boolean	isLessThan(MultiValuedNodeHeapIterator.HeapNode heapNode) Performs a comparison of the two heap nodes
MultiValuedNodeHeapIterator.HeapNode	reset() Reset the heap node back to its beginning.
void	setMark() Remembers the current node for the next call to MultiValuedNodeHeapIterator.HeapNode.gotoMark().
MultiValuedNodeHeapIterator.HeapNode	setStartNode(int node) Sets context with respect to which this heap node is evaluated.
int	step() Advance to the next node represented by this MultiValuedNodeHeapIterator.HeapNode

Methods inherited from class java.lang.Object

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

Field Detail

iterator

public DTMAxisIterator iterator

Constructor Detail

UnionIterator.LookAheadIterator

public UnionIterator.LookAheadIterator(DTMAxisIterator iterator)

Method Detail

step

public int step()

Description copied from class: MultiValuedNodeHeapIterator.HeapNode

Advance to the next node represented by this MultiValuedNodeHeapIterator.HeapNode

Specified by:

step in class MultiValuedNodeHeapIterator.HeapNode

Returns:

the next DTM node.

cloneHeapNode

public MultiValuedNodeHeapIterator.HeapNode cloneHeapNode()

Description copied from class: MultiValuedNodeHeapIterator.HeapNode

Creates a deep copy of this MultiValuedNodeHeapIterator.HeapNode. The clone is not reset from the current position of the original.

Overrides:

cloneHeapNode in class MultiValuedNodeHeapIterator.HeapNode

Returns:

the cloned heap node

setMark

public void setMark()

Description copied from class: MultiValuedNodeHeapIterator.HeapNode

Remembers the current node for the next call to MultiValuedNodeHeapIterator.HeapNode.gotoMark().

Overrides:

setMark in class MultiValuedNodeHeapIterator.HeapNode

gotoMark

public void gotoMark()

Description copied from class: MultiValuedNodeHeapIterator.HeapNode

Restores the current node remembered by MultiValuedNodeHeapIterator.HeapNode.setMark().

Overrides:

gotoMark in class MultiValuedNodeHeapIterator.HeapNode

isLessThan

public boolean isLessThan(MultiValuedNodeHeapIterator.HeapNode heapNode)

Description copied from class: MultiValuedNodeHeapIterator.HeapNode

Performs a comparison of the two heap nodes

Specified by:

isLessThan in class MultiValuedNodeHeapIterator.HeapNode

Parameters:

heapNode - the heap node against which to compare

Returns:

true if and only if the current node for this heap node is before the current node of the argument heap node in document order.

setStartNode

public MultiValuedNodeHeapIterator.HeapNode setStartNode(int node)

Description copied from class: MultiValuedNodeHeapIterator.HeapNode

Sets context with respect to which this heap node is evaluated.

Specified by:

setStartNode in class MultiValuedNodeHeapIterator.HeapNode

Parameters:

node - The new context node

Returns:

a MultiValuedNodeHeapIterator.HeapNode which may or may not be the same as this HeapNode.

reset

public MultiValuedNodeHeapIterator.HeapNode reset()

Description copied from class: MultiValuedNodeHeapIterator.HeapNode

Reset the heap node back to its beginning.

Specified by:

reset in class MultiValuedNodeHeapIterator.HeapNode

Returns:

a MultiValuedNodeHeapIterator.HeapNode which may or may not be the same as this HeapNode.