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Top Description Methods
javax.xml.xpath

public Interface XPathVariableResolver

Imports
javax.xml.namespace.QName

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 not change.

Authors
Norman Walsh, Jeff Suttor
Since
1.5

Method Summary

Modifier and TypeMethod and Description
public Object

Returns:

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.
resolveVariable(QName
The QName of the variable name.
variableName)

Find a variable in the set of available variables.

Method Detail

resolveVariableback to summary
public Object resolveVariable(QName variableName)

Find a variable in the set of available variables.

If variableName is null, then a NullPointerException is thrown.

Parameters
variableName:QName

The QName of the variable name.

Returns:Object

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.

Exceptions
NullPointerException:
If variableName is null.