01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
10: * http://www.apache.org/licenses/LICENSE-2.0
11: *
12: * Unless required by applicable law or agreed to in writing,
13: * software distributed under the License is distributed on an
14: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15: * KIND, either express or implied. See the License for the
16: * specific language governing permissions and limitations
17: * under the License.
18: *
19: */
20: package org.apache.mina.statemachine.transition;
21:
22: import org.apache.mina.statemachine.State;
23: import org.apache.mina.statemachine.event.Event;
24:
25: /**
26: * {@link Transition} implementation which does nothing but change the state.
27: *
28: * @author The Apache MINA Project (dev@mina.apache.org)
29: * @version $Rev: 586695 $, $Date: 2007-10-20 04:01:17 -0600 (Sat, 20 Oct 2007) $
30: */
31: public class NoopTransition extends AbstractTransition {
32:
33: /**
34: * Creates a new instance which will loopback to the same {@link State}
35: * for the specified {@link Event} id.
36: *
37: * @param eventId the {@link Event} id.
38: */
39: public NoopTransition(Object eventId) {
40: super (eventId);
41: }
42:
43: /**
44: * Creates a new instance with the specified {@link State} as next state
45: * and for the specified {@link Event} id.
46: *
47: * @param eventId the {@link Event} id.
48: * @param nextState the next {@link State}.
49: */
50: public NoopTransition(Object eventId, State nextState) {
51: super (eventId, nextState);
52: }
53:
54: protected boolean doExecute(Event event) {
55: return true;
56: }
57:
58: }
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