DescendantContext (Apache Commons JXPath 1.4-SNAPSHOT API)

java.lang.Object
- org.apache.commons.jxpath.ri.EvalContext
- - org.apache.commons.jxpath.ri.axes.DescendantContext

All Implemented Interfaces:

Iterator, ExpressionContext
```
public class DescendantContext
extends EvalContext
```
An EvalContext that walks the "descendant::" and "descendant-or-self::" axes.

Version:

$Revision: 670727 $ $Date: 2008-06-23 22:10:38 +0200 (Mo, 23 Jun 2008) $

Author:

Dmitri Plotnikov

Field Summary
- Fields inherited from class org.apache.commons.jxpath.ri.EvalContext
  parentContext, position, rootContext

Constructor Summary

Constructors
Constructor and Description
`DescendantContext(EvalContext parentContext, boolean includeSelf, NodeTest nodeTest)` Create a new DescendantContext.

Method Summary

Methods
Modifier and Type	Method and Description
`NodePointer`	`getCurrentNodePointer()` Returns the current context node.
`boolean`	`isChildOrderingRequired()` Even if this context has the natural ordering and therefore does not require collecting and sorting all nodes prior to returning them, such operation may be required for any child context.
`boolean`	`nextNode()` Returns true if there is another object in the current set.
`void`	`reset()` Sets current position = 0, which is the pre-iteration state.
`boolean`	`setPosition(int position)` Moves the current position to the specified index.

Methods inherited from class org.apache.commons.jxpath.ri.EvalContext
getContextNodeList, getContextNodePointer, getCurrentPosition, getDocumentOrder, getJXPathContext, getNodeSet, getPosition, getRootContext, getSingleNodePointer, getValue, hasNext, next, nextSet, remove, sortPointers, toString

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - DescendantContext
```
public DescendantContext(EvalContext parentContext,
                 boolean includeSelf,
                 NodeTest nodeTest)
```
    Create a new DescendantContext.
    
    Parameters:
    parentContext - parent context
    includeSelf - whether to include this node
    nodeTest - test
- Method Detail
  - isChildOrderingRequired
```
public boolean isChildOrderingRequired()
```
    Description copied from class: EvalContext
    
    Even if this context has the natural ordering and therefore does not require collecting and sorting all nodes prior to returning them, such operation may be required for any child context.
    
    Overrides:
    
    isChildOrderingRequired in class EvalContext
    
    Returns:
    boolean
  - getCurrentNodePointer
```
public NodePointer getCurrentNodePointer()
```
    Description copied from class: EvalContext
    
    Returns the current context node. Undefined before the beginning of the iteration.
    
    Specified by:
    
    getCurrentNodePointer in class EvalContext
    
    Returns:
    NodePoiner
  - reset
```
public void reset()
```
    Description copied from class: EvalContext
    
    Sets current position = 0, which is the pre-iteration state.
    
    Overrides:
    
    reset in class EvalContext
  - setPosition
```
public boolean setPosition(int position)
```
    Description copied from class: EvalContext
    
    Moves the current position to the specified index. Used with integer predicates to quickly get to the n'th element of the node set. Returns false if the position is out of the node set range. You can call it with 0 as the position argument to restart the iteration.
    
    Overrides:
    
    setPosition in class EvalContext
    
    Parameters:
    position - to set
    
    Returns:
    boolean
  - nextNode
```
public boolean nextNode()
```
    Description copied from class: EvalContext
    
    Returns true if there is another object in the current set. Switches the current position and node to the next object.
    
    Specified by:
    
    nextNode in class EvalContext
    
    Returns:
    boolean

Class DescendantContext

Field Summary

Fields inherited from class org.apache.commons.jxpath.ri.EvalContext

Constructor Summary

Method Summary

Methods inherited from class org.apache.commons.jxpath.ri.EvalContext

Methods inherited from class java.lang.Object

Constructor Detail

DescendantContext

Method Detail

isChildOrderingRequired

getCurrentNodePointer

reset

setPosition

nextNode