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/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. 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 Inc.
*
* 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.type;
import java.io.Serializable;
import java.util.Iterator;
import java.util.Map;
import org.hibernate.HibernateException;
import org.hibernate.MappingException;
import org.hibernate.collection.spi.PersistentCollection;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.usertype.LoggableUserType;
import org.hibernate.usertype.UserCollectionType;
/**
* A custom type for mapping user-written classes that implement PersistentCollection
*
* @see org.hibernate.collection.spi.PersistentCollection
* @see org.hibernate.usertype.UserCollectionType
* @author Gavin King
*/
public class CustomCollectionType extends CollectionType {
private final UserCollectionType userType;
private final boolean customLogging;
/**
* @deprecated Use {@link #CustomCollectionType(TypeFactory.TypeScope, Class, String, String )} instead.
* See Jira issue: HHH-7771
*/
@Deprecated
public CustomCollectionType(
TypeFactory.TypeScope typeScope,
Class userTypeClass,
String role,
String foreignKeyPropertyName,
boolean isEmbeddedInXML) {
super( typeScope, role, foreignKeyPropertyName, isEmbeddedInXML );
userType = createUserCollectionType( userTypeClass );
customLogging = LoggableUserType.class.isAssignableFrom( userTypeClass );
}
public CustomCollectionType(
TypeFactory.TypeScope typeScope,
Class userTypeClass,
String role,
String foreignKeyPropertyName) {
super( typeScope, role, foreignKeyPropertyName );
userType = createUserCollectionType( userTypeClass );
customLogging = LoggableUserType.class.isAssignableFrom( userTypeClass );
}
private static UserCollectionType createUserCollectionType(Class userTypeClass) {
if ( !UserCollectionType.class.isAssignableFrom( userTypeClass ) ) {
throw new MappingException( "Custom type does not implement UserCollectionType: " + userTypeClass.getName() );
}
try {
return ( UserCollectionType ) userTypeClass.newInstance();
}
catch ( InstantiationException ie ) {
throw new MappingException( "Cannot instantiate custom type: " + userTypeClass.getName() );
}
catch ( IllegalAccessException iae ) {
throw new MappingException( "IllegalAccessException trying to instantiate custom type: " + userTypeClass.getName() );
}
}
public PersistentCollection instantiate(SessionImplementor session, CollectionPersister persister, Serializable key)
throws HibernateException {
return userType.instantiate(session, persister);
}
public PersistentCollection wrap(SessionImplementor session, Object collection) {
return userType.wrap(session, collection);
}
public Class getReturnedClass() {
return userType.instantiate( -1 ).getClass();
}
public Object instantiate(int anticipatedType) {
return userType.instantiate( anticipatedType );
}
public Iterator getElementsIterator(Object collection) {
return userType.getElementsIterator(collection);
}
public boolean contains(Object collection, Object entity, SessionImplementor session) {
return userType.contains(collection, entity);
}
public Object indexOf(Object collection, Object entity) {
return userType.indexOf(collection, entity);
}
public Object replaceElements(Object original, Object target, Object owner, Map copyCache, SessionImplementor session)
throws HibernateException {
CollectionPersister cp = session.getFactory().getCollectionPersister( getRole() );
return userType.replaceElements(original, target, cp, owner, copyCache, session);
}
protected String renderLoggableString(Object value, SessionFactoryImplementor factory) throws HibernateException {
if ( customLogging ) {
return ( ( LoggableUserType ) userType ).toLoggableString( value, factory );
}
else {
return super.renderLoggableString( value, factory );
}
}
public UserCollectionType getUserType() {
return userType;
}
}