/*
* 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.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*
*/
package org.hibernate.tuple.component;
import java.io.Serializable;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.mapping.Component;
import org.hibernate.mapping.Property;
import org.hibernate.tuple.PropertyFactory;
import org.hibernate.tuple.StandardProperty;
/**
* Centralizes metamodel information about a component.
*
* @author Steve Ebersole
*/
public class ComponentMetamodel implements Serializable {
// TODO : will need reference to session factory to fully complete HHH-1907
// private final SessionFactoryImplementor sessionFactory;
private final String role;
private final boolean isKey;
private final StandardProperty[] properties;
private final EntityMode entityMode;
private final ComponentTuplizer componentTuplizer;
// cached for efficiency...
private final int propertySpan;
private final Map propertyIndexes = new HashMap();
// public ComponentMetamodel(Component component, SessionFactoryImplementor sessionFactory) {
public ComponentMetamodel(Component component) {
// this.sessionFactory = sessionFactory;
this.role = component.getRoleName();
this.isKey = component.isKey();
propertySpan = component.getPropertySpan();
properties = new StandardProperty[propertySpan];
Iterator itr = component.getPropertyIterator();
int i = 0;
while ( itr.hasNext() ) {
Property property = ( Property ) itr.next();
properties[i] = PropertyFactory.buildStandardProperty( property, false );
propertyIndexes.put( property.getName(), i );
i++;
}
entityMode = component.hasPojoRepresentation() ? EntityMode.POJO : EntityMode.MAP;
// todo : move this to SF per HHH-3517; also see HHH-1907 and ComponentMetamodel
final ComponentTuplizerFactory componentTuplizerFactory = new ComponentTuplizerFactory();
final String tuplizerClassName = component.getTuplizerImplClassName( entityMode );
this.componentTuplizer = tuplizerClassName == null ? componentTuplizerFactory.constructDefaultTuplizer(
entityMode,
component
) : componentTuplizerFactory.constructTuplizer( tuplizerClassName, component );
}
public boolean isKey() {
return isKey;
}
public int getPropertySpan() {
return propertySpan;
}
public StandardProperty[] getProperties() {
return properties;
}
public StandardProperty getProperty(int index) {
if ( index < 0 || index >= propertySpan ) {
throw new IllegalArgumentException( "illegal index value for component property access [request=" + index + ", span=" + propertySpan + "]" );
}
return properties[index];
}
public int getPropertyIndex(String propertyName) {
Integer index = ( Integer ) propertyIndexes.get( propertyName );
if ( index == null ) {
throw new HibernateException( "component does not contain such a property [" + propertyName + "]" );
}
return index;
}
public StandardProperty getProperty(String propertyName) {
return getProperty( getPropertyIndex( propertyName ) );
}
public EntityMode getEntityMode() {
return entityMode;
}
public ComponentTuplizer getComponentTuplizer() {
return componentTuplizer;
}
}