/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright 1997-2008 Sun Microsystems, Inc. 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.html
* or glassfish/bootstrap/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 glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
* identifying information: "Portions Copyrighted [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:
*
* 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 com.sun.faces.facelets.tag.jsf;
import com.sun.faces.facelets.el.LegacyMethodBinding;
import javax.faces.component.EditableValueHolder;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.event.MethodExpressionValueChangeListener;
import javax.faces.event.ValueChangeEvent;
import javax.faces.validator.MethodExpressionValidator;
import javax.faces.view.facelets.*;
/**
*
* @author Jacob Hookom
* @version $Id: EditableValueHolderRule.java 7265 2009-05-01 19:46:08Z rlubke $
*/
public final class EditableValueHolderRule extends MetaRule {
final static class LiteralValidatorMetadata extends Metadata {
private final String validatorId;
public LiteralValidatorMetadata(String validatorId) {
this.validatorId = validatorId;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((EditableValueHolder) instance).addValidator(ctx.getFacesContext()
.getApplication().createValidator(this.validatorId));
}
}
final static class ValueChangedExpressionMetadata extends Metadata {
private final TagAttribute attr;
public ValueChangedExpressionMetadata(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((EditableValueHolder) instance)
.addValueChangeListener(new MethodExpressionValueChangeListener(
this.attr.getMethodExpression(ctx, null,
VALUECHANGE_SIG)));
}
}
final static class ValueChangedBindingMetadata extends Metadata {
private final TagAttribute attr;
public ValueChangedBindingMetadata(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((EditableValueHolder) instance)
.setValueChangeListener(new LegacyMethodBinding(this.attr
.getMethodExpression(ctx, null, VALUECHANGE_SIG)));
}
}
final static class ValidatorExpressionMetadata extends Metadata {
private final TagAttribute attr;
public ValidatorExpressionMetadata(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((EditableValueHolder) instance)
.addValidator(new MethodExpressionValidator(this.attr
.getMethodExpression(ctx, null, VALIDATOR_SIG)));
}
}
final static class ValidatorBindingMetadata extends Metadata {
private final TagAttribute attr;
public ValidatorBindingMetadata(TagAttribute attr) {
this.attr = attr;
}
public void applyMetadata(FaceletContext ctx, Object instance) {
((EditableValueHolder) instance)
.setValidator(new LegacyMethodBinding(this.attr
.getMethodExpression(ctx, null, VALIDATOR_SIG)));
}
}
private final static Class[] VALIDATOR_SIG = new Class[] {
FacesContext.class, UIComponent.class, Object.class };
private final static Class[] VALUECHANGE_SIG = new Class[] { ValueChangeEvent.class };
public final static EditableValueHolderRule Instance = new EditableValueHolderRule();
public Metadata applyRule(String name, TagAttribute attribute,
MetadataTarget meta) {
if (meta.isTargetInstanceOf(EditableValueHolder.class)) {
if ("validator".equals(name)) {
if (attribute.isLiteral()) {
return new LiteralValidatorMetadata(attribute.getValue());
} else {
return new ValidatorExpressionMetadata(attribute);
}
}
if ("valueChangeListener".equals(name)) {
return new ValueChangedExpressionMetadata(attribute);
}
}
return null;
}
}