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/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*
*
* This file incorporates work covered by the following copyright and
* permission notice:
*
* Copyright 2005-2007 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package javax.faces.view.facelets;
import javax.faces.view.ValueHolderAttachedObjectHandler;
/**
* <p class="changed_added_2_0">Handles setting a {@link
* javax.faces.convert.Converter} instance on a {@link
* javax.faces.component.ValueHolder} parent. Will wire all attributes
* set to the <code>Converter</code> instance created/fetched. Uses the
* "binding" attribute for grabbing instances to apply attributes
* to. </p>
*
* <p class="changed_added_2_0">Will only set/create
* <code>Converter</code> if the passed <code>UIComponent</code>'s
* <code>parent</code> is <code>null</code>, signifying that it wasn't
* restored from an existing tree.</p>
*
*/
public class ConverterHandler extends FaceletsAttachedObjectHandler implements ValueHolderAttachedObjectHandler {
private String converterId;
private TagHandlerDelegate helper;
public ConverterHandler(ConverterConfig config) {
super(config);
this.converterId = config.getConverterId();
}
@Override
protected TagHandlerDelegate getTagHandlerDelegate() {
if (null == helper) {
helper = delegateFactory.createConverterHandlerDelegate(this);
}
return helper;
}
public String getConverterId(FaceletContext ctx) {
if (converterId == null) {
TagAttribute idAttr = getAttribute("converterId");
if (idAttr == null) {
return null;
} else {
return idAttr.getValue(ctx);
}
}
return converterId;
}
}
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