FunctionLibrary (Apache Commons JXPath 1.4-SNAPSHOT API)

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java.lang.Object
- org.apache.commons.jxpath.FunctionLibrary

All Implemented Interfaces:

Functions
```
public class FunctionLibrary
extends Object
implements Functions
```
An object that aggregates Functions objects into a group Functions object. Since JXPathContext can only register a single Functions object, FunctionLibrary should always be used to group all Functions objects that need to be registered.

Version:

$Revision: 1234255 $ $Date: 2012-01-21 04:11:46 +0100 (Sa, 21 Jan 2012) $

Author:

Dmitri Plotnikov

Constructor Summary

Constructors
Constructor and Description

FunctionLibrary()

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addFunctions(Functions functions)` Add functions to the library
`Function`	`getFunction(String namespace, String name, Object[] parameters)` Returns a Function, if any, for the specified namespace, name and parameter types.
`Set`	`getUsedNamespaces()` Returns a set containing all namespaces used by the aggregated Functions.
`void`	`removeFunctions(Functions functions)` Remove functions from the library.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - FunctionLibrary
```
public FunctionLibrary()
```
- Method Detail
  - addFunctions
```
public void addFunctions(Functions functions)
```
    Add functions to the library
    
    Parameters:
    functions - to add
  - removeFunctions
```
public void removeFunctions(Functions functions)
```
    Remove functions from the library.
    
    Parameters:
    functions - to remove
  - getUsedNamespaces
```
public Set getUsedNamespaces()
```
    Returns a set containing all namespaces used by the aggregated Functions.
    
    Specified by:
    
    getUsedNamespaces in interface Functions
    
    Returns:
    Set
  - getFunction
```
public Function getFunction(String namespace,
                   String name,
                   Object[] parameters)
```
    Returns a Function, if any, for the specified namespace, name and parameter types.
    
    Specified by:
    
    getFunction in interface Functions
    
    Parameters:
    namespace - function namespace
    name - function name
    parameters - parameters
    
    Returns:
    Function found

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