XPathFunction JDK 1.6)

Description

public interface XPathFunction

XPathFunction provides access to XPath functions.

See also:

Methods

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public Object evaluate (List args) throws XPathFunctionException

Evaluate the function with the specified arguments.

To the greatest extent possible, side-effects should be avoided in the definition of extension functions. The implementation evaluating an XPath expression is under no obligation to call extension functions in any particular order or any particular number of times.

Returns: The result of evaluating the XPath function as an Object.
Parameters:
- args - The arguments, null is a valid value.
Throws:
- XPathFunctionException - If args cannot be evaluated with this XPath function.