/*******************************************************************************
* Copyright (c) 1998, 2010 Oracle. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation from Oracle TopLink
******************************************************************************/
package org.eclipse.persistence.internal.xr;
//javase imports
import java.util.Map;
//EclipseLink imports
import org.eclipse.persistence.exceptions.DescriptorException;
import org.eclipse.persistence.indirection.ValueHolder;
import org.eclipse.persistence.indirection.ValueHolderInterface;
import org.eclipse.persistence.internal.dynamic.DynamicEntityImpl.PropertyWrapper;
import org.eclipse.persistence.mappings.DatabaseMapping;
/**
* <p>
* <b>INTERNAL:</b> XRDynamicEntityVHAccessor is similar to
* {@link XRDynamicEntityAccessor}; however, it is used exclusively by O-X mappings
* as they require attribute navigation <i>through</i> the ValueHolder to the
* contained value.
*
* @author Mike Norman - michael.norman@oracle.com
* @since EclipseLink 1.x
*/
@SuppressWarnings("serial")
public class XRDynamicEntityVHAccessor extends XRDynamicEntityAccessor {
public XRDynamicEntityVHAccessor(DatabaseMapping mapping) {
super(mapping);
}
@Override
public Object getAttributeValueFromObject(Object entity) throws DescriptorException {
Map<String, PropertyWrapper> propertiesMap = ((XRDynamicEntity)entity).getPropertiesMap();
PropertyWrapper wrapper = propertiesMap.get(attributeName);
Object v = null;
if (wrapper.isSet()) {
v = ((ValueHolderInterface)wrapper.getValue()).getValue();
}
return v;
}
public void setAttributeValueInObject(Object entity, Object value) throws DescriptorException {
Map<String, PropertyWrapper> propertiesMap = ((XRDynamicEntity)entity).getPropertiesMap();
PropertyWrapper wrapper = propertiesMap.get(attributeName);
if (value instanceof ValueHolderInterface) {
// ValueHolders go directly into the PropertyWrapper
wrapper.setValue(value);
}
else {
if (!wrapper.isSet()) {
wrapper.setValue(new ValueHolder(value));
}
else {
((ValueHolderInterface)wrapper.getValue()).setValue(value);
}
}
}
}