/*
* Copyright 2009-2011 the original author or authors.
*
* 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 org.jdal.vaadin.data;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.BeanInstantiationException;
import org.springframework.beans.BeanUtils;
import com.vaadin.data.Item;
import com.vaadin.ui.Component;
import com.vaadin.ui.Field;
import com.vaadin.ui.FormFieldFactory;
/**
* Make FormFieldFactory application context friendly.
*
* @author Jose Luis Martin - (jlm@joseluismartin.info)
*/
public class ConfigurableFieldFactory implements FormFieldFactory {
private static final Log log = LogFactory.getLog(ConfigurableFieldFactory.class);
private Map<Object, Class<Field>> fieldMap =
Collections.synchronizedMap(new HashMap<Object, Class<Field>>());
/**
* {@inheritDoc}
*/
public Field createField(Item item, Object propertyId, Component uiContext) {
Class<Field> clazz = fieldMap.get(propertyId);
if (clazz != null) {
try {
return BeanUtils.instantiate(clazz);
}
catch(BeanInstantiationException bie) {
log.error(bie);
}
}
return null;
}
}