Functions (Commons JXPath 1.3 API)

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

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`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