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 java.io.IOException;
22
23 import javax.faces.component.UIComponent;
24
25 /**
26 * A participant in UIComponent tree building
27 *
28 * @since 2.0
29 */
30 public interface FaceletHandler
31 {
32 /**
33 * Process changes on a particular UIComponent
34 *
35 * @param ctx the current FaceletContext instance for this execution
36 * @param parent the parent UIComponent to operate upon
37 * @throws IOException
38 * @throws javax.faces.FacesException
39 * @throws FaceletException
40 * @throws javax.el.ELException
41 */
42 public void apply(FaceletContext ctx, UIComponent parent)throws IOException;
43 }