org.hibernate.envers.entities.mapper.relation.OneToOneNotOwningMapper Maven / Gradle / Ivy
/*
* 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.
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*/
package org.hibernate.envers.entities.mapper.relation;
import java.io.Serializable;
import javax.persistence.OneToOne;
import org.hibernate.envers.entities.PropertyData;
import org.hibernate.envers.query.AuditEntity;
import org.hibernate.envers.reader.AuditReaderImplementor;
/**
* Property mapper for not owning side of {@link OneToOne} relation.
* @author Adam Warski (adam at warski dot org)
* @author HernпїЅn Chanfreau
* @author Michal Skowronek (mskowr at o2 dot pl)
* @author Lukasz Antoniak (lukasz dot antoniak at gmail dot com)
*/
public class OneToOneNotOwningMapper extends AbstractOneToOneMapper {
private final String owningReferencePropertyName;
public OneToOneNotOwningMapper(String notOwningEntityName, String owningEntityName, String owningReferencePropertyName,
PropertyData propertyData) {
super(notOwningEntityName, owningEntityName, propertyData);
this.owningReferencePropertyName = owningReferencePropertyName;
}
@Override
protected Object queryForReferencedEntity(AuditReaderImplementor versionsReader, EntityInfo referencedEntity,
Serializable primaryKey, Number revision) {
return versionsReader.createQuery().forEntitiesAtRevision(referencedEntity.getEntityClass(),
referencedEntity.getEntityName(), revision)
.add(AuditEntity.relatedId(owningReferencePropertyName).eq(primaryKey))
.getSingleResult();
}
}