org.hibernate.metamodel.model.domain.spi.DomainModelHelper Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of hibernate-core Show documentation
Show all versions of hibernate-core Show documentation
Hibernate's core ORM functionality
/*
* 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 http://www.gnu.org/licenses/lgpl-2.1.html
*/
package org.hibernate.metamodel.model.domain.spi;
import org.hibernate.boot.registry.classloading.spi.ClassLoaderService;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.metamodel.spi.MetamodelImplementor;
import org.hibernate.persister.entity.EntityPersister;
/**
* Helper containing utilities useful for domain model handling
* @author Steve Ebersole
*/
public class DomainModelHelper {
public static EntityPersister resolveEntityPersister(
EntityTypeDescriptor entityType,
SessionFactoryImplementor sessionFactory) {
// Our EntityTypeImpl#getType impl returns the Hibernate entity-name
// which is exactly what we want
final String hibernateEntityName = entityType.getName();
return sessionFactory.getMetamodel().entityPersister( hibernateEntityName );
}
@SuppressWarnings("unchecked")
public static ManagedTypeDescriptor resolveSubType(
ManagedTypeDescriptor baseType,
String subTypeName,
SessionFactoryImplementor sessionFactory) {
final MetamodelImplementor metamodel = sessionFactory.getMetamodel();
if ( baseType instanceof EmbeddedTypeDescriptor ) {
// todo : at least validate the string is a valid sub-type of the embeddable class?
return (ManagedTypeDescriptor) baseType;
}
final String importedClassName = metamodel.getImportedClassName( subTypeName );
if ( importedClassName != null ) {
// first, try to find it by name directly..
ManagedTypeDescriptor subManagedType = metamodel.entity( importedClassName );
if ( subManagedType != null ) {
return subManagedType;
}
// it could still be a mapped-superclass
try {
final Class subTypeClass = sessionFactory.getServiceRegistry()
.getService( ClassLoaderService.class )
.classForName( importedClassName );
return metamodel.managedType( subTypeClass );
}
catch (Exception ignore) {
}
}
throw new IllegalArgumentException( "Unknown sub-type name (" + baseType.getName() + ") : " + subTypeName );
}
public static ManagedTypeDescriptor resolveSubType(
ManagedTypeDescriptor baseType,
Class subTypeClass,
SessionFactoryImplementor sessionFactory) {
// todo : validate the hierarchy-ness...
final MetamodelImplementor metamodel = sessionFactory.getMetamodel();
return metamodel.managedType( subTypeClass );
}
}