/**
* License Agreement.
*
* Rich Faces - Natural Ajax for Java Server Faces (JSF)
*
* Copyright (C) 2007 Exadel, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
package org.richfaces.view.facelets;
import javax.faces.convert.Converter;
import javax.faces.view.facelets.FaceletContext;
import javax.faces.view.facelets.MetaRule;
import javax.faces.view.facelets.Metadata;
import javax.faces.view.facelets.MetadataTarget;
import javax.faces.view.facelets.TagAttribute;
import org.richfaces.component.UIDataAdaptor;
/**
* Apply rowKeyConverter to component
*
* @author Maksim Kaszynski
* @since 3.3.1
*/
public class RowKeyConverterRule extends MetaRule {
public static final RowKeyConverterRule INSTANCE = new RowKeyConverterRule();
@Override
public Metadata applyRule(String name, TagAttribute attribute, MetadataTarget meta) {
if (meta.isTargetInstanceOf(UIDataAdaptor.class)) {
if ("rowKeyConverter".equals(name)) {
if (attribute.isLiteral()) {
return new StaticConverterMetadata(attribute.getValue());
} else {
return new DynamicConverterMetaData(attribute);
}
}
}
return null;
}
static final class DynamicConverterMetaData extends Metadata {
private final TagAttribute attribute;
public DynamicConverterMetaData(TagAttribute attribute) {
super();
this.attribute = attribute;
}
@Override
public void applyMetadata(FaceletContext ctx, Object instance) {
((UIDataAdaptor) instance)
.setValueExpression("rowKeyConverter", attribute.getValueExpression(ctx, Converter.class));
}
}
static final class StaticConverterMetadata extends Metadata {
private final String converterId;
public StaticConverterMetadata(String converterId) {
super();
this.converterId = converterId;
}
@Override
public void applyMetadata(FaceletContext ctx, Object instance) {
Converter converter = ctx.getFacesContext().getApplication().createConverter(converterId);
((UIDataAdaptor) instance).setRowKeyConverter(converter);
}
}
}