1 package org.apache.jcs.engine.control.event.behavior;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import java.io.IOException;
23 import java.io.Serializable;
24
25 /**
26 * Interface for an element event queue. An event queue is used to propagate
27 * ordered element events in one region.
28 *
29 */
30 public interface IElementEventQueue extends Serializable
31 {
32
33 /**
34 * Adds an ElementEvent to be handled
35 *
36 * @param hand
37 * The IElementEventHandler
38 * @param event
39 * The IElementEventHandler IElementEvent event
40 * @throws IOException
41 */
42 public void addElementEvent( IElementEventHandler hand, IElementEvent event )
43 throws IOException;
44
45 /** Description of the Method */
46 public void destroy();
47
48 /**
49 * Gets the alive attribute of the IElementEventQueue object
50 *
51 * @return The alive value
52 */
53 public boolean isAlive();
54
55 }