public abstract class DTMAxisTraverser extends Object
A DTMAxisTraverser can probably not traverse a reverse axis in document order.
Typical usage:
for(int nodeHandle=myTraverser.first(myContext);
nodeHandle!=DTM.NULL;
nodeHandle=myTraverser.next(myContext,nodeHandle))
{ ... processing for node indicated by nodeHandle goes here ... }
Constructor and Description |
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DTMAxisTraverser() |
Modifier and Type | Method and Description |
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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 context,
int extendedTypeID)
By the nature of the stateless traversal, the context node can not be
returned or the iteration will go into an infinate loop.
|
abstract int |
next(int context,
int current)
Traverse to the next node after the current node.
|
abstract int |
next(int context,
int current,
int extendedTypeID)
Traverse to the next node after the current node that is matched
by the extended type ID.
|
public int first(int context)
This method needs to be overloaded only by those axis that process the self node. <\p>
context
- The context node of this traversal. This is the point
that the traversal starts from.public int first(int context, int extendedTypeID)
This method needs to be overloaded only by those axis that process the self node. <\p>
context
- The context node of this traversal. This is the point
of origin for the traversal -- its "root node" or starting point.extendedTypeID
- The extended type ID that must match.public abstract int next(int context, int current)
context
- The context node of this traversal. This is the point
of origin for the traversal -- its "root node" or starting point.current
- The current node of the traversal. This is the last known
location in the traversal, typically the node-handle returned by the
previous traversal step. For the first traversal step, context
should be set equal to current. Note that in order to test whether
context is in the set, you must use the first() method instead.first(int)
public abstract int next(int context, int current, int extendedTypeID)
context
- The context node of this traversal. This is the point
of origin for the traversal -- its "root node" or starting point.current
- The current node of the traversal. This is the last known
location in the traversal, typically the node-handle returned by the
previous traversal step. For the first traversal step, context
should be set equal to current. Note that in order to test whether
context is in the set, you must use the first() method instead.extendedTypeID
- The extended type ID that must match.first(int,int)
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