org.jaxen.expr
public interface Step extends Predicated
Represents a location step in a LocationPath. The node-set selected by the location step is the node-set that results from generating an initial node-set from the axis and node-test, and then filtering that node-set by each of the predicates in turn.
The initial node-set consists of the nodes having the relationship to the context node specified by the axis, and having the node type and expanded-name specified by the node test.
Method Summary | |
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Iterator | axisIterator(Object contextNode, ContextSupport support)
Get an Iterator for the current axis starting in the given contextNode.
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List | evaluate(Context context)
For each node in the given context calls matches() for every node on the
axis, then filters the result by each of the predicates.
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int | getAxis()
Get an identifier for the current axis.
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String | getText()
Returns a String containing the XPath expression.
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boolean | matches(Object node, ContextSupport contextSupport)
Performs the node-test part of evaluating the step for the given node
(which must be on the axis).
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void | simplify()
Simplifies the XPath step. |
Parameters: contextNode the node from which to follow this step support the remaining context for the traversal
Returns: an iterator over the nodes along the axis
Throws: UnsupportedAxisException if the navigator does not support this step's axis
Returns: a list of matching nodes
Returns: the axis identifier
See Also: Axis
String
containing the XPath expression.
Returns: the text form of this step
Returns: true if the node matches this step; false if it doesn't