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