org.eclipse.persistence.internal.xr.XRDynamicEntityVHAccessor Maven / Gradle / Ivy
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/*
* Copyright (c) 1998, 2018 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0,
* or the Eclipse Distribution License v. 1.0 which is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
*/
// 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;
/**
*
* INTERNAL: XRDynamicEntityVHAccessor is similar to
* {@link XRDynamicEntityAccessor}; however, it is used exclusively by O-X mappings
* as they require attribute navigation through the ValueHolder to the
* contained value.
*
* @author Mike Norman - [email protected]
* @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 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 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);
}
}
}
}