Class SelfContext
- java.lang.Object
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- org.apache.commons.jxpath.ri.EvalContext
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- org.apache.commons.jxpath.ri.axes.SelfContext
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- All Implemented Interfaces:
java.util.Iterator
,ExpressionContext
public class SelfContext extends EvalContext
EvalContext that returns the current node from the parent context if the test succeeds.- Version:
- $Revision: 670727 $ $Date: 2008-06-23 15:10:38 -0500 (Mon, 23 Jun 2008) $
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Field Summary
Fields Modifier and Type Field Description private NodePointer
nodePointer
private NodeTest
nodeTest
private boolean
startedSet
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Fields inherited from class org.apache.commons.jxpath.ri.EvalContext
parentContext, position, rootContext
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Constructor Summary
Constructors Constructor Description SelfContext(EvalContext parentContext, NodeTest nodeTest)
Create a new SelfContext.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description NodePointer
getCurrentNodePointer()
Returns the current context node.Pointer
getSingleNodePointer()
Returns the first encountered Pointer that matches the current context's criteria.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, getValue, hasNext, isChildOrderingRequired, next, nextSet, remove, sortPointers, toString
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Field Detail
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nodeTest
private NodeTest nodeTest
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startedSet
private boolean startedSet
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nodePointer
private NodePointer nodePointer
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Constructor Detail
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SelfContext
public SelfContext(EvalContext parentContext, NodeTest nodeTest)
Create a new SelfContext.- Parameters:
parentContext
- EvalContextnodeTest
- guard
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Method Detail
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getSingleNodePointer
public Pointer getSingleNodePointer()
Description copied from class:EvalContext
Returns the first encountered Pointer that matches the current context's criteria.- Overrides:
getSingleNodePointer
in classEvalContext
- Returns:
- Pointer
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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 classEvalContext
- Returns:
- NodePoiner
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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 classEvalContext
- Returns:
- boolean
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reset
public void reset()
Description copied from class:EvalContext
Sets current position = 0, which is the pre-iteration state.- Overrides:
reset
in classEvalContext
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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 classEvalContext
- Parameters:
position
- to set- Returns:
- boolean
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