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## org.apache.commons.jxpath
Interface Functions

All Known Implementing Classes:
  ClassFunctions, FunctionLibrary, PackageFunctions

    public interface Functions

A group of Function objects sharing a common namespace or a set of common namespaces. Use the classes `ClassFunctions` and `PackageFunctions` to register extension functions implemented as Java methods.

Version:
  $Revision: 652845 $ $Date: 2008-05-02 12:46:46 -0500 (Fri, 02 May 2008) $
Author:
  Dmitri Plotnikov

Method Summary
`Function` | `getFunction(String namespace, String name, Object[] parameters)` Returns a Function, if any, for the specified namespace, name and parameter types.
`Set` | `getUsedNamespaces()` Returns all namespaces in which this function collection defines functions.

Method Detail

### getUsedNamespaces

    Set getUsedNamespaces()

  Returns all namespaces in which this function collection defines functions.

  Returns:
    Set

### getFunction

    Function getFunction(String namespace,
                         String name,
                         Object[] parameters)

  Returns a Function, if any, for the specified namespace, name and parameter types.

  Parameters:
    `namespace` - ns
    `name` - function name
    `parameters` - Object[]
  Returns:
    Function

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