1 /*
2 * $Id: NullComponent.java 10529 2008-01-25 05:58:36Z dfeist $
3 * --------------------------------------------------------------------------------------
4 * Copyright (c) MuleSource, Inc. All rights reserved. http://www.mulesource.com
5 *
6 * The software in this package is published under the terms of the CPAL v1.0
7 * license, a copy of which has been included with this distribution in the
8 * LICENSE.txt file.
9 */
10
11 package org.mule.component.simple;
12
13 import org.mule.api.MuleEventContext;
14 import org.mule.api.lifecycle.Callable;
15
16 /**
17 * <code>NullComponent</code> is a service that is used as a placeholder. This
18 * implementation will throw an exception if a message is received for it.
19 */
20 public class NullComponent implements Callable
21 {
22
23 public Object onCall(MuleEventContext context) throws Exception
24 {
25 throw new UnsupportedOperationException("This service cannot receive messages. Service is: "
26 + context.getService().getName());
27 }
28
29 }