org.apache.xalan.xsltc.dom
Class CachedNodeListIterator

java.lang.Object
  extended by org.apache.xml.dtm.ref.DTMAxisIteratorBase
      extended by org.apache.xalan.xsltc.dom.CachedNodeListIterator
All Implemented Interfaces:
java.lang.Cloneable, DTMAxisIterator

public final class CachedNodeListIterator
extends DTMAxisIteratorBase

CachedNodeListIterator is used for select expressions in a variable or parameter. This iterator caches all nodes in an IntegerArray. Its cloneIterator() method is overridden to return an object of ClonedNodeListIterator.


Field Summary
private  int _index
           
private  boolean _isEnded
           
private  IntegerArray _nodes
           
private  int _numCachedNodes
           
private  DTMAxisIterator _source
          Source for this iterator.
 
Fields inherited from class org.apache.xml.dtm.ref.DTMAxisIteratorBase
_includeSelf, _isRestartable, _last, _markedNode, _position, _startNode
 
Fields inherited from interface org.apache.xml.dtm.DTMAxisIterator
END
 
Constructor Summary
CachedNodeListIterator(DTMAxisIterator source)
           
 
Method Summary
 DTMAxisIterator cloneIterator()
          Returns a deep copy of this iterator.
 int getNode(int index)
           
 int getNodeByPosition(int pos)
          Return the node at the given position.
 int getPosition()
           
 void gotoMark()
          Restores the current node remembered by setMark().
 int next()
          Get the next node in the iteration.
 DTMAxisIterator reset()
          Resets the iterator to the last start node.
 void setMark()
          Remembers the current node for the next call to gotoMark().
 void setRestartable(boolean isRestartable)
          Set if restartable.
 DTMAxisIterator setStartNode(int node)
          Set start to END should 'close' the iterator, i.e.
 
Methods inherited from class org.apache.xml.dtm.ref.DTMAxisIteratorBase
getAxis, getLast, getStartNode, includeSelf, isDocOrdered, isReverse, resetPosition, returnNode
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

_source

private DTMAxisIterator _source
Source for this iterator.


_nodes

private IntegerArray _nodes

_numCachedNodes

private int _numCachedNodes

_index

private int _index

_isEnded

private boolean _isEnded
Constructor Detail

CachedNodeListIterator

public CachedNodeListIterator(DTMAxisIterator source)
Method Detail

setRestartable

public void setRestartable(boolean isRestartable)
Description copied from interface: DTMAxisIterator
Set if restartable.

Specified by:
setRestartable in interface DTMAxisIterator
Overrides:
setRestartable in class DTMAxisIteratorBase

setStartNode

public DTMAxisIterator setStartNode(int node)
Description copied from interface: DTMAxisIterator
Set start to END should 'close' the iterator, i.e. subsequent call to next() should return END.

Parameters:
node - Sets the root of the iteration.
Returns:
A DTMAxisIterator set to the start of the iteration.

next

public int next()
Description copied from interface: DTMAxisIterator
Get the next node in the iteration.

Returns:
The next node handle in the iteration, or END.

getPosition

public int getPosition()
Specified by:
getPosition in interface DTMAxisIterator
Overrides:
getPosition in class DTMAxisIteratorBase
Returns:
The position of the current node within the set, as defined by XPath. Note that this is one-based, not zero-based.

getNodeByPosition

public int getNodeByPosition(int pos)
Description copied from class: DTMAxisIteratorBase
Return the node at the given position.

Specified by:
getNodeByPosition in interface DTMAxisIterator
Overrides:
getNodeByPosition in class DTMAxisIteratorBase
Parameters:
pos - The position
Returns:
The node at the given position.

getNode

public int getNode(int index)

cloneIterator

public DTMAxisIterator cloneIterator()
Description copied from class: DTMAxisIteratorBase
Returns a deep copy of this iterator. Cloned iterators may not be restartable. The iterator being cloned may or may not become non-restartable as a side effect of this operation.

Specified by:
cloneIterator in interface DTMAxisIterator
Overrides:
cloneIterator in class DTMAxisIteratorBase
Returns:
a deep copy of this iterator.

reset

public DTMAxisIterator reset()
Description copied from interface: DTMAxisIterator
Resets the iterator to the last start node.

Specified by:
reset in interface DTMAxisIterator
Overrides:
reset in class DTMAxisIteratorBase
Returns:
A DTMAxisIterator which has been reset to the start node, which may or may not be the same as this iterator.

setMark

public void setMark()
Description copied from interface: DTMAxisIterator
Remembers the current node for the next call to gotoMark().


gotoMark

public void gotoMark()
Description copied from interface: DTMAxisIterator
Restores the current node remembered by setMark().