AncestorContext (Apache Commons JXPath 1.4-SNAPSHOT API)

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

All Implemented Interfaces:

Iterator, ExpressionContext
```
public class AncestorContext
extends EvalContext
```
EvalContext that walks the "ancestor::" and "ancestor-or-self::" axes.

Version:

$Revision: 652845 $ $Date: 2008-05-02 19:46:46 +0200 (Fr, 02 Mai 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
`AncestorContext(EvalContext parentContext, boolean includeSelf, NodeTest nodeTest)` Create a new AncestorContext.

Method Summary

Methods
Modifier and Type	Method and Description
`NodePointer`	`getCurrentNodePointer()` Returns the current context node.
`int`	`getDocumentOrder()` Determines the document order for this 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, getJXPathContext, getNodeSet, getPosition, getRootContext, getSingleNodePointer, getValue, hasNext, isChildOrderingRequired, next, nextSet, remove, sortPointers, toString

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

- Constructor Detail
  - AncestorContext
```
public AncestorContext(EvalContext parentContext,
               boolean includeSelf,
               NodeTest nodeTest)
```
    Create a new AncestorContext.
    
    Parameters:
    parentContext - represents the previous step on the path
    includeSelf - differentiates between "ancestor::" and "ancestor-or-self::" axes
    nodeTest - is the name of the element(s) we are looking for
- Method Detail
  - 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
  - getDocumentOrder
```
public int getDocumentOrder()
```
    Description copied from class: EvalContext
    
    Determines the document order for this context.
    
    Overrides:
    
    getDocumentOrder in class EvalContext
    
    Returns:
    1 ascending order, -1 descending order, 0 - does not require ordering
  - 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 AncestorContext

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

AncestorContext

Method Detail

getCurrentNodePointer

getDocumentOrder

reset

setPosition

nextNode