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.EditableValueHolderAttachedObjectHandler;
22
23 import org.apache.myfaces.buildtools.maven2.plugin.builder.annotation.JSFFaceletTag;
24
25 /**
26 * Handles setting a Validator instance on a EditableValueHolder. Will wire all attributes set to the Validator instance
27 * created/fetched. Uses the "binding" attribute for grabbing instances to apply attributes to. <p/> Will only
28 * set/create Validator is the passed UIComponent's parent is null, signifying that it wasn't restored from an existing
29 * tree.
30 */
31 @JSFFaceletTag
32 public class ValidatorHandler extends FaceletsAttachedObjectHandler implements EditableValueHolderAttachedObjectHandler
33 {
34 private ValidatorConfig config;
35 private TagHandlerDelegate helper;
36
37 public ValidatorHandler(ValidatorConfig config)
38 {
39 super(config);
40
41 this.config = config;
42 }
43
44 public ValidatorConfig getValidatorConfig ()
45 {
46 return this.config;
47 }
48
49 public String getValidatorId(FaceletContext ctx)
50 {
51 return config.getValidatorId();
52 }
53
54 protected TagHandlerDelegate getTagHandlerDelegate()
55 {
56 if (helper == null)
57 {
58 // Spec seems to indicate that the helper is created here, as opposed to other Handler
59 // instances, where it's presumably a new instance for every getter call.
60
61 this.helper = delegateFactory.createValidatorHandlerDelegate (this);
62 }
63 return helper;
64 }
65 }