org.hibernate.envers.internal.entities.mapper.relation.lazy.initializor.SortedSetCollectionInitializor 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.lazy.initializor;
import java.lang.reflect.InvocationTargetException;
import java.util.Comparator;
import java.util.SortedSet;
import org.hibernate.envers.boot.internal.EnversService;
import org.hibernate.envers.exception.AuditException;
import org.hibernate.envers.internal.entities.mapper.relation.MiddleComponentData;
import org.hibernate.envers.internal.entities.mapper.relation.query.RelationQueryGenerator;
import org.hibernate.envers.internal.reader.AuditReaderImplementor;
/**
* Initializes SortedSet collection with proper Comparator
*
* @author Michal Skowronek (mskowr at o2 dot pl)
*/
public class SortedSetCollectionInitializor extends BasicCollectionInitializor {
private final Comparator comparator;
public SortedSetCollectionInitializor(
EnversService enversService,
AuditReaderImplementor versionsReader,
RelationQueryGenerator queryGenerator,
Object primaryKey,
Number revision,
boolean removed,
Class collectionClass,
MiddleComponentData elementComponentData,
Comparator comparator) {
super(
enversService,
versionsReader,
queryGenerator,
primaryKey,
revision,
removed,
collectionClass,
elementComponentData
);
this.comparator = comparator;
}
@Override
protected SortedSet initializeCollection(int size) {
if ( comparator == null ) {
return super.initializeCollection( size );
}
try {
return collectionClass.getConstructor( Comparator.class ).newInstance( comparator );
}
catch (InstantiationException e) {
throw new AuditException( e );
}
catch (IllegalAccessException e) {
throw new AuditException( e );
}
catch (NoSuchMethodException e) {
throw new AuditException( e );
}
catch (InvocationTargetException e) {
throw new AuditException( e );
}
}
}