/*
* Copyright 2005 Joe Walker
*
* 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.directwebremoting.hibernate;
import java.beans.PropertyDescriptor;
import net.sf.hibernate.LazyInitializationException;
import org.directwebremoting.ConversionException;
import org.directwebremoting.extend.Property;
import org.directwebremoting.extend.PropertyDescriptorProperty;
/**
* A {@link Property} that catches Hibernate exceptions.
* This is useful for Hibernate 2 where lazy loading results in an exception
* and you are unable to detect and prevent this.
* @author Joe Walker [joe at getahead dot ltd dot uk]
*/
public class H2PropertyDescriptorProperty extends PropertyDescriptorProperty
{
/**
* Simple constructor
* @param descriptor The PropertyDescriptor that we are proxying to
*/
public H2PropertyDescriptorProperty(PropertyDescriptor descriptor)
{
super(descriptor);
}
/* (non-Javadoc)
* @see org.directwebremoting.impl.PropertyDescriptorProperty#getValue(java.lang.Object)
*/
@Override
public Object getValue(Object bean) throws ConversionException
{
try
{
return super.getValue(bean);
}
catch (LazyInitializationException ex)
{
return null;
}
catch (Exception ex)
{
throw new ConversionException(bean.getClass(), ex);
}
}
}