1 /**
2 * Copyright (C) 2005-2009 Alfresco Software Limited.
3 *
4 * This file is part of the Spring Surf Extension project.
5 *
6 * Licensed under the Apache License, Version 2.0 (the "License");
7 * you may not use this file except in compliance with the License.
8 * 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, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package org.springframework.extensions.webscripts.ui.common.component;
20
21 import java.io.IOException;
22
23 import javax.faces.component.UIComponentBase;
24 import javax.faces.context.ResponseWriter;
25
26
27 /**
28 * @author kevinr
29 */
30 public abstract class SelfRenderingComponent extends UIComponentBase
31 {
32 /**
33 * Default Constructor
34 */
35 public SelfRenderingComponent()
36 {
37 // specifically set the renderer type to null to indicate to the framework
38 // that this component renders itself - there is no abstract renderer class
39 setRendererType(null);
40 }
41
42 /**
43 * Helper to output an attribute to the output stream
44 *
45 * @param out ResponseWriter
46 * @param attr attribute value object (cannot be null)
47 * @param mapping mapping to output as e.g. style="..."
48 *
49 * @throws IOException
50 */
51 protected static void outputAttribute(ResponseWriter out, Object attr, String mapping)
52 throws IOException
53 {
54 if (attr != null)
55 {
56 out.write(' ');
57 out.write(mapping);
58 out.write("=\"");
59 out.write(attr.toString());
60 out.write('"');
61 }
62 }
63 }