1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
5 *
6 * The contents of this file are subject to the terms of either the GNU
7 * General Public License Version 2 only ("GPL") or the Common Development
8 * and Distribution License("CDDL") (collectively, the "License"). You
9 * may not use this file except in compliance with the License. You can obtain
10 * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
11 * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
12 * language governing permissions and limitations under the License.
13 *
14 * When distributing the software, include this License Header Notice in each
15 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
16 * Sun designates this particular file as subject to the "Classpath" exception
17 * as provided by Sun in the GPL Version 2 section of the License file that
18 * accompanied this code. If applicable, add the following below the License
19 * Header, with the fields enclosed by brackets [] replaced by your own
20 * identifying information: "Portions Copyrighted [year]
21 * [name of copyright owner]"
22 *
23 * Contributor(s):
24 *
25 * If you wish your version of this file to be governed by only the CDDL or
26 * only the GPL Version 2, indicate your decision by adding "[Contributor]
27 * elects to include this software in this distribution under the [CDDL or GPL
28 * Version 2] license." If you don't indicate a single choice of license, a
29 * recipient has the option to distribute your version of this file under
30 * either the CDDL, the GPL Version 2 or to extend the choice of license to
31 * its licensees as provided above. However, if you add GPL Version 2 code
32 * and therefore, elected the GPL Version 2 license, then the option applies
33 * only if the new code is made subject to such option by the copyright
34 * holder.
35 */
36
37 package javax.faces.view.facelets;
38
39 import java.io.IOException;
40 import javax.faces.component.UIComponent;
41
42
43 /**
44 * <p class="changed_added_2_0">Abstract class that defines methods
45 * relating to helping tag handler instances. This abstraction enables
46 * implementation details to be hidden by the JSF implementation while
47 * still allowing concrete classes to be defined for extension by
48 * users.</p>
49 *
50 * @since 2.0
51 */
52
53 public abstract class TagHandlerDelegate {
54
55 /**
56 * <p class="changed_added_2_0">Return a {@link MetaRuleset}
57 * particular to this kind of tag handler. Called from classes that
58 * implement {@link MetaTagHandler}.</p>
59 *
60 * @param type the <code>Class</code> for which the
61 * <code>MetaRuleset</code> must be created.
62 *
63 * @since 2.0
64 */
65
66 public abstract MetaRuleset createMetaRuleset(Class type);
67
68
69 /**
70 * <p class="changed_added_2_0">Called by classes that implement
71 * {@link javax.faces.view.facelets.FaceletHandler} in their
72 * implementation of <code>apply()</code>.</p>
73 *
74 * @param ctx the <code>FaceletContext</code> for this request
75 *
76 * @param comp the <code>UIComponent</code> that corresponds to this
77 * element.
78 *
79 */
80 public abstract void apply(FaceletContext ctx, UIComponent comp)
81 throws IOException;
82
83 }