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.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 03:21:35 -0700 (Fri, 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: }
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