org.hibernate.envers.internal.entities.mapper.relation.MiddleMapKeyEnumeratedComponentMapper Maven / Gradle / Ivy
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Hibernate's entity version (audit/history) support
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.envers.internal.entities.mapper.relation;
import java.util.Map;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.envers.internal.entities.EntityInstantiator;
import org.hibernate.envers.internal.entities.mapper.relation.component.MiddleComponentMapper;
import org.hibernate.envers.internal.tools.query.Parameters;
/**
* A {@link MiddleComponentMapper} specifically for {@link javax.persistence.MapKeyEnumerated}.
*
* @author Chris Cranford
*/
public class MiddleMapKeyEnumeratedComponentMapper implements MiddleComponentMapper {
private final String propertyName;
public MiddleMapKeyEnumeratedComponentMapper(String propertyPrefix) {
this.propertyName = propertyPrefix + "_KEY";
}
@Override
public Object mapToObjectFromFullMap(
EntityInstantiator entityInstantiator,
Map data,
Object dataObject,
Number revision) {
return data.get( propertyName );
}
@Override
public void mapToMapFromObject(
SessionImplementor session,
Map idData,
Map data,
Object obj) {
idData.put( propertyName, obj );
}
@Override
public void addMiddleEqualToQuery(
Parameters parameters,
String idPrefix1,
String prefix1,
String idPrefix2,
String prefix2) {
throw new UnsupportedOperationException( "Cannot use this mapper with a middle table!" );
}
}