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 package javax.faces.view.facelets;
20
21 import javax.faces.view.BehaviorHolderAttachedObjectHandler;
22
23 import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;
24
25 /**
26 * @since 2.0
27 */
28 @JSFFaceletTag
29 public class BehaviorHandler extends FaceletsAttachedObjectHandler implements BehaviorHolderAttachedObjectHandler
30 {
31 private String behaviorId;
32 private TagAttribute event;
33 private TagHandlerDelegate helper;
34
35 /**
36 * @param config
37 */
38 public BehaviorHandler(BehaviorConfig config)
39 {
40 super(config);
41
42 behaviorId = config.getBehaviorId();
43 event = getAttribute ("event");
44 }
45
46 public String getBehaviorId()
47 {
48 return behaviorId;
49 }
50
51 public TagAttribute getEvent()
52 {
53 return event;
54 }
55
56 public String getEventName ()
57 {
58 if (event == null)
59 {
60 return null;
61 }
62
63 return event.getValue();
64 }
65
66 /**
67 * {@inheritDoc}
68 */
69 @Override
70 protected TagHandlerDelegate getTagHandlerDelegate()
71 {
72 if (helper == null)
73 {
74 // Spec seems to indicate that the helper is created here, as opposed to other Handler
75 // instances, where it's presumably a new instance for every getter call.
76
77 this.helper = delegateFactory.createBehaviorHandlerDelegate (this);
78 }
79 return helper;
80 }
81 }