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Java > Open Source Codes > javax > jcr > observation > EventListener


1 /*
2  * $Id: EventListener.java,v 1.2 2004/07/24 00:16:23 benjmestrallet Exp $
3  *
4  * Copyright 2002-2004 Day Management AG, Switzerland.
5  *
6  * Licensed under the Day RI License, Version 2.0 (the "License"),
7  * as a reference implementation of the following specification:
8  *
9  * Content Repository API for Java Technology, revision 0.12
10  * <http://www.jcp.org/en/jsr/detail?id=170>
11  *
12  * You may not use this file except in compliance with the License.
13  * You may obtain a copy of the License files at
14  *
15  * http://www.day.com/content/en/licenses/day-ri-license-2.0
16  * http://www.apache.org/licenses/LICENSE-2.0
17  *
18  * Unless required by applicable law or agreed to in writing, software
19  * distributed under the License is distributed on an "AS IS" BASIS,
20  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
21  * See the License for the specific language governing permissions and
22  * limitations under the License.
23  */
24 package javax.jcr.observation;
25
26 /**
27  * An event listener.
28  * <p/>
29  * <b>Level 2 only</b>
30  * <p/>
31  * An <code>EventListener</code> can be registered via the
32  * <code>{@link javax.jcr.observation.ObservationManager}</code> object. Event listeners are
33  * notified asynchronously, and see events after they occur and the transaction
34  * is committed. An event listener only sees events for which the ticket that
35  * registered it has sufficient access rights.
36  *
37  * @author Tim Anderson
38  * @author Peeter Piegaze
39  */
40 public interface EventListener {
41
42   /**
43    * Gets called when an event occurs.
44    *
45    * @param event The event recieved.
46    */
47   public void onEvent(Event event);
48 }
49
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