01: /*
02: * Copyright (c) 1998-2008 Caucho Technology -- all rights reserved
03: *
04: * This file is part of Resin(R) Open Source
05: *
06: * Each copy or derived work must preserve the copyright notice and this
07: * notice unmodified.
08: *
09: * Resin Open Source is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License version 2
11: * as published by the Free Software Foundation.
12: *
13: * Resin Open Source is distributed in the hope that it will be useful,
14: * but WITHOUT ANY WARRANTY; without even the implied warranty of
15: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
16: * of NON-INFRINGEMENT. See the GNU General Public License for more
17: * details.
18: *
19: * You should have received a copy of the GNU General Public License
20: * along with Resin Open Source; if not, write to the
21: *
22: * Free Software Foundation, Inc.
23: * 59 Temple Place, Suite 330
24: * Boston, MA 02111-1307 USA
25: *
26: * @author Scott Ferguson
27: */
28:
29: package javax.faces.render;
30:
31: import java.io.*;
32: import java.util.*;
33:
34: import javax.faces.component.*;
35: import javax.faces.convert.*;
36: import javax.faces.context.*;
37:
38: public abstract class Renderer {
39: public void decode(FacesContext context, UIComponent component) {
40: }
41:
42: public void encodeBegin(FacesContext context, UIComponent component)
43: throws IOException {
44: }
45:
46: public void encodeChildren(FacesContext context,
47: UIComponent component) throws IOException {
48: int size = component.getChildCount();
49:
50: if (size > 0) {
51: List<UIComponent> children = component.getChildren();
52:
53: for (int i = 0; i < size; i++) {
54: UIComponent child = children.get(i);
55:
56: child.encodeAll(context);
57: }
58: }
59: }
60:
61: public void encodeEnd(FacesContext context, UIComponent component)
62: throws IOException {
63: }
64:
65: public String convertClientId(FacesContext context, String clientId) {
66: return clientId;
67: }
68:
69: public boolean getRendersChildren() {
70: return false;
71: }
72:
73: public Object getConvertedValue(FacesContext context,
74: UIComponent component, Object submittedValue)
75: throws ConverterException {
76: if (context == null || component == null)
77: throw new NullPointerException();
78:
79: return submittedValue;
80: }
81: }
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