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## org.apache.commons.jxpath
Class FunctionLibrary

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

All Implemented Interfaces:
  Functions

public class FunctionLibrary
extends java.lang.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: 1.3 $ $Date: 2003/03/11 00:59:12 $
Author:
  Dmitri Plotnikov

Constructor Summary
`FunctionLibrary()`

Method Summary
`void` | `addFunctions(Functions functions)` Add functions to the library
`Function` | `getFunction(java.lang.String namespace, java.lang.String name, java.lang.Object[] parameters)` Returns a Function, if any, for the specified namespace, name and parameter types.
`java.util.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

### removeFunctions

    public void removeFunctions(Functions functions)

  Remove functions from the library.

### getUsedNamespaces

    public java.util.Set getUsedNamespaces()

  Returns a set containing all namespaces used by the aggregated Functions.
  Specified by:
    `getUsedNamespaces` in interface `Functions`

### getFunction

    public Function getFunction(java.lang.String namespace,
                                java.lang.String name,
                                java.lang.Object[] parameters)

  Returns a Function, if any, for the specified namespace, name and parameter types.
  Specified by:
    `getFunction` in interface `Functions`

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