1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.scxml2.env;
18
19 import org.apache.commons.scxml2.SCXMLListener;
20 import org.apache.commons.scxml2.model.EnterableState;
21 import org.apache.commons.scxml2.model.Transition;
22 import org.apache.commons.scxml2.model.TransitionTarget;
23
24 /**
25 * An abstract adapter class for the <code>SXCMLListener</code> interface.
26 * This class exists as a convenience for creating listener objects, and as
27 * such all the methods in this class are empty.
28 *
29 * @since 0.7
30 */
31 public abstract class AbstractSCXMLListener implements SCXMLListener {
32
33 /**
34 * @see SCXMLListener#onEntry(EnterableState)
35 */
36 public void onEntry(final EnterableState state) {
37 // empty
38 }
39
40 /**
41 * @see SCXMLListener#onExit(EnterableState)
42 */
43 public void onExit(final EnterableState state) {
44 // empty
45 }
46
47 /**
48 * @see SCXMLListener#onTransition(TransitionTarget,TransitionTarget,Transition,String)
49 */
50 public void onTransition(final TransitionTarget from,
51 final TransitionTarget to, final Transition transition, final String event) {
52 // empty
53 }
54
55 }
56