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 org.apache.myfaces.custom.loadbundle;
20
21 import javax.faces.component.UIComponent;
22 import javax.faces.webapp.UIComponentTag;
23 import javax.servlet.jsp.JspException;
24
25 import org.apache.commons.logging.Log;
26 import org.apache.commons.logging.LogFactory;
27
28 /**
29 * A load-bundle alternative which allows to use load-bundle
30 * even on AJAX-enabled pages.
31 * <p/>
32 * A tag that allows to load bundles not only on rendering, but whenever the
33 * page author needs it. By default, it loads it on every lifecycle phase
34 * except restore-state and save-state.
35 *
36 * The core-load-bundle only loads its message-bundle
37 * on rendering - this load-bundle does it on every life-cycle,
38 * and optionally whenever the method loadBundle is called.
39
40 * @author Martin Marinschek
41 */
42 public abstract class AbstractLoadBundleTag extends UIComponentTag {
43
44 private Log log = LogFactory.getLog(AbstractLoadBundleTag.class);
45
46 public int doStartTag() throws JspException
47 {
48 int retVal= super.doStartTag();
49
50 UIComponent comp = getComponentInstance();
51
52 if(comp instanceof LoadBundle)
53 {
54 ((LoadBundle) comp).loadBundle();
55 }
56 else
57 {
58 log.warn("associated component is no loadbundle.");
59 }
60
61 return retVal;
62 }
63 }