1 package org.apache.commons.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 /**
23 * This interface defines the behavior for event handler. Event handlers are
24 * transient. They are not replicated and are not written to disk.
25 * <p>
26 * If you want an event handler by default for all elements in a region, then
27 * you can add it to the default element attributes. This way it will get created
28 * whenever an item gets put into the cache.
29 *
30 */
31 public interface IElementEventHandler
32 {
33 /**
34 * Handle events for this element. The events are typed.
35 *
36 * @param event
37 * The event created by the cache.
38 */
39 <T> void handleElementEvent( IElementEvent<T> event );
40 }