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XPathVariableResolver.javaAPI DocJava SE 5 API1745Fri Aug 26 14:58:26 BST 2005javax.xml.xpath

XPathVariableResolver

public interface XPathVariableResolver

XPathVariableResolver provides access to the set of user defined XPath variables.

The XPathVariableResolver and the XPath evaluator must adhere to a contract that cannot be directly enforced by the API. Although variables may be mutable, that is, an application may wish to evaluate the same XPath expression more than once with different variable values, in the course of evaluating any single XPath expression, a variable's value must be immutable.

author
Norman Walsh
author
Jeff Suttor
version
$Revision: 1.6 $, $Date: 2003/12/08 04:40:47 $
since
1.5

Fields Summary
Constructors Summary
Methods Summary
public java.lang.ObjectresolveVariable(javax.xml.namespace.QName variableName)

Find a variable in the set of available variables.

If variableName is null, then a NullPointerException is thrown.

param
variableName The QName of the variable name.
return
The variables value, or null if no variable named variableName exists. The value returned must be of a type appropriate for the underlying object model.
throws
NullPointerException If variableName is null.