/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.envers.entities.mapper.relation;
import java.io.Serializable;
import java.util.List;
import java.util.Map;
import javax.persistence.NoResultException;
import org.hibernate.envers.configuration.AuditConfiguration;
import org.hibernate.envers.entities.mapper.PersistentCollectionChangeData;
import org.hibernate.envers.entities.mapper.PropertyMapper;
import org.hibernate.envers.entities.PropertyData;
import org.hibernate.envers.exception.AuditException;
import org.hibernate.envers.query.AuditEntity;
import org.hibernate.envers.reader.AuditReaderImplementor;
import org.hibernate.envers.tools.reflection.ReflectionTools;
import org.hibernate.NonUniqueResultException;
import org.hibernate.engine.SessionImplementor;
import org.hibernate.collection.PersistentCollection;
import org.hibernate.property.Setter;
/**
* @author Adam Warski (adam at warski dot org)
*/
public class OneToOneNotOwningMapper implements PropertyMapper {
private String owningReferencePropertyName;
private String owningEntityName;
private PropertyData propertyData;
public OneToOneNotOwningMapper(String owningReferencePropertyName, String owningEntityName,
PropertyData propertyData) {
this.owningReferencePropertyName = owningReferencePropertyName;
this.owningEntityName = owningEntityName;
this.propertyData = propertyData;
}
public boolean mapToMapFromEntity(SessionImplementor session, Map<String, Object> data, Object newObj, Object oldObj) {
return false;
}
public void mapToEntityFromMap(AuditConfiguration verCfg, Object obj, Map data, Object primaryKey, AuditReaderImplementor versionsReader, Number revision) {
if (obj == null) {
return;
}
Class<?> entityClass = ReflectionTools.loadClass(owningEntityName);
Object value;
try {
value = versionsReader.createQuery().forEntitiesAtRevision(entityClass, revision)
.add(AuditEntity.relatedId(owningReferencePropertyName).eq(primaryKey)).getSingleResult();
} catch (NoResultException e) {
value = null;
} catch (NonUniqueResultException e) {
throw new AuditException("Many versions results for one-to-one relationship: (" + owningEntityName +
", " + owningReferencePropertyName + ")");
}
Setter setter = ReflectionTools.getSetter(obj.getClass(), propertyData);
setter.set(obj, value, null);
}
public List<PersistentCollectionChangeData> mapCollectionChanges(String referencingPropertyName,
PersistentCollection newColl,
Serializable oldColl,
Serializable id) {
return null;
}
}