1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
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.context;
21
22 import org.apache.mina.statemachine.event.Event;
23
24 /**
25 * Lookups a {@link StateContext} from a collection of event arguments.
26 *
27 * @author The Apache MINA Project (dev@mina.apache.org)
28 * @version $Rev: 593479 $, $Date: 2007-11-09 11:21:35 +0100 (ven, 09 nov 2007) $
29 */
30 public interface StateContextLookup {
31 /**
32 * Searches the arguments from an {@link Event} and returns a
33 * {@link StateContext} if any of the arguments holds one. NOTE! This method
34 * must create a new {@link StateContext} if a compatible object is in
35 * the arguments and the next time that same object is passed to this
36 * method the same {@link StateContext} should be returned.
37 */
38 StateContext lookup(Object[] eventArgs);
39 }