org.apache.commons.jxpath.ri.axes
Class ChildContext
- ExpressionContext, Iterator
public class ChildContext
EvalContext that can walk the "child::", "following-sibling::" and
"preceding-sibling::" axes.
$Revision: 1.16 $ $Date: 2004/03/25 03:49:50 $
NodePointer | getCurrentNodePointer() - Returns the current context node.
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Pointer | getSingleNodePointer() - This method is called on the last context on the path when only
one value is needed.
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boolean | nextNode() - Returns true if there is another object in the current set.
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void | reset() - Sets current position = 0, which is the pre-iteration state.
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boolean | setPosition(int position) - Moves the current position to the specified index.
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getContextNodeList , getContextNodePointer , getCurrentNodePointer , getCurrentPosition , getDocumentOrder , getJXPathContext , getNodeSet , getPosition , getRootContext , getSingleNodePointer , getValue , hasNext , isChildOrderingRequired , next , nextNode , nextSet , remove , reset , setPosition , toString |
ChildContext
public ChildContext(EvalContext parentContext,
NodeTest nodeTest,
boolean startFromParentLocation,
boolean reverse)
getSingleNodePointer
public Pointer getSingleNodePointer()
This method is called on the last context on the path when only
one value is needed. Note that this will return the whole property,
even if it is a collection. It will not extract the first element
of the collection. For example, "books" will return the collection
of books rather than the first book from that collection.
- getSingleNodePointer in interface EvalContext
nextNode
public boolean nextNode()
Returns true if there is another object in the current set.
Switches the current position and node to the next object.
- nextNode in interface EvalContext
reset
public void reset()
Sets current position = 0, which is the pre-iteration state.
- reset in interface EvalContext
setPosition
public boolean setPosition(int position)
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.
- setPosition in interface EvalContext