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Java Source Code / Java Documentation » Library » Apache commons jxpath 1.2 src » org.apache.commons.jxpath

Source Cross Reference

Class Diagram

Java Document (Java Doc)

org.apache.commons.jxpath .Function

All known Subclasses:   org.apache.commons.jxpath.functions .MethodFunction,  org.apache.commons.jxpath.functions .ConstructorFunction,
Function
public interface Function (Code)
Extension function interface. Extension functions are grouped into Functions Functions objects, which are installed on JXPathContexts using the JXPathContext.setFunctions JXPathContext.setFunctions() call.
The Function interface can be implemented directly. However, most of the time JXPath's built-in implementations should suffice. See ClassFunctions ClassFunctions and PackageFunctions PackageFunctions .
author:
   Dmitri Plotnikov
version:
   $Revision: 1.7 $ $Date: 2004/02/29 14:17:42 $

Method Summary
Object invoke(ExpressionContext context, Object[] parameters)
     Computes the value of the function.

Method Detail
invoke
Object invoke(ExpressionContext context, Object[] parameters)(Code)
Computes the value of the function. Each implementation of Function is responsible for conversion of supplied parameters to the required argument types.
Parameters:
  context - can be used to acquire the context in which thefunction is being evaluted.

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