org.apache.xml.dtm.ref
Class DTMDefaultBaseTraversers.ParentTraverser

java.lang.Object
  extended by org.apache.xml.dtm.DTMAxisTraverser
      extended by org.apache.xml.dtm.ref.DTMDefaultBaseTraversers.ParentTraverser
Enclosing class:
DTMDefaultBaseTraversers

private class DTMDefaultBaseTraversers.ParentTraverser
extends DTMAxisTraverser

Implements traversal of the Ancestor access, in reverse document order.


Constructor Summary
private DTMDefaultBaseTraversers.ParentTraverser()
           
 
Method Summary
 int first(int context)
          By the nature of the stateless traversal, the context node can not be returned or the iteration will go into an infinate loop.
 int first(int current, int expandedTypeID)
          By the nature of the stateless traversal, the context node can not be returned or the iteration will go into an infinate loop.
 int next(int context, int current)
          Traverse to the next node after the current node.
 int next(int context, int current, int expandedTypeID)
          Traverse to the next node after the current node that is matched by the expanded type ID.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DTMDefaultBaseTraversers.ParentTraverser

private DTMDefaultBaseTraversers.ParentTraverser()
Method Detail

first

public int first(int context)
By the nature of the stateless traversal, the context node can not be returned or the iteration will go into an infinate loop. So to traverse an axis, the first function must be used to get the first node.

This method needs to be overloaded only by those axis that process the self node. <\p>

Overrides:
first in class DTMAxisTraverser
Parameters:
context - The context node of this traversal. This is the point that the traversal starts from.
Returns:
the first node in the traversal.

first

public int first(int current,
                 int expandedTypeID)
By the nature of the stateless traversal, the context node can not be returned or the iteration will go into an infinate loop. So to traverse an axis, the first function must be used to get the first node.

This method needs to be overloaded only by those axis that process the self node. <\p>

Overrides:
first in class DTMAxisTraverser
Parameters:
context - The context node of this traversal. This is the point of origin for the traversal -- its "root node" or starting point.
expandedTypeID - The expanded type ID that must match.
Returns:
the first node in the traversal.

next

public int next(int context,
                int current)
Traverse to the next node after the current node.

Specified by:
next in class DTMAxisTraverser
Parameters:
context - The context node of this iteration.
current - The current node of the iteration.
Returns:
the next node in the iteration, or DTM.NULL.
See Also:
DTMAxisTraverser.first(int)

next

public int next(int context,
                int current,
                int expandedTypeID)
Traverse to the next node after the current node that is matched by the expanded type ID.

Specified by:
next in class DTMAxisTraverser
Parameters:
context - The context node of this iteration.
current - The current node of the iteration.
expandedTypeID - The expanded type ID that must match.
Returns:
the next node in the iteration, or DTM.NULL.
See Also:
DTMAxisTraverser.first(int,int)