/*******************************************************************************
* Copyright (c) 1998, 2008 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:
* bdoughan - Jan 27/2009 - 1.1 - Initial implementation
******************************************************************************/
package org.eclipse.persistence.sdo.helper.jaxb;
import org.eclipse.persistence.sdo.SDODataObject;
import org.eclipse.persistence.sdo.SDOType;
import org.eclipse.persistence.sdo.helper.delegates.SDODataFactoryDelegate;
import commonj.sdo.DataObject;
import commonj.sdo.Type;
import commonj.sdo.helper.HelperContext;
/**
* This implementation of commonj.sdo.helper.DataFactory is responsible for
* ensuring that newly created DataObjects are assigned a JAXB aware value store.
* <pre>
* Type customerType = jaxbHelperContext.getType(Customer.class);
* DataObject customerDO = jaxbHelperContext.getDataFactory().create(customerType);
* customerDO.set("first-name", "Jane");
*
* Customer customer = jaxbHelperContext.unwrap(customerDO);
* customer.getFirstName(); // returns "Jane"
* </pre>
*/
public class JAXBDataFactory extends SDODataFactoryDelegate {
public JAXBDataFactory(HelperContext helperContext) {
super(helperContext);
}
@Override
public JAXBHelperContext getHelperContext() {
return (JAXBHelperContext) super.getHelperContext();
}
/**
* Return a new DataObject of the specified Type. If a corresponding
* class (based on XML schema information) exists in the JAXBContext,
* then the returned DataObject will wrap an instance of that class.
*/
@Override
public DataObject create(Type type) {
if(null == type) {
return super.create(type);
}
SDODataObject dataObject = (SDODataObject) super.create(type);
try {
JAXBValueStore jpaValueStore = new JAXBValueStore(getHelperContext(), (SDOType) type);
jpaValueStore.initialize(dataObject);
dataObject._setCurrentValueStore(jpaValueStore);
getHelperContext().putWrapperDataObject(jpaValueStore.getEntity(), dataObject);
} catch(Exception e) {
return super.create(type);
}
return dataObject;
}
}