/*
 * 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.lang.reflect.Method;
import java.util.Iterator;

import org.hibernate.HibernateException;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.mapping.Component;
import org.hibernate.mapping.Property;
import org.hibernate.property.Getter;
import org.hibernate.property.Setter;
import org.hibernate.tuple.Instantiator;

Support for tuplizers relating to components.
Author:Gavin King, Steve Ebersole
/** * Support for tuplizers relating to components. * * @author Gavin King * @author Steve Ebersole */
public abstract class AbstractComponentTuplizer implements ComponentTuplizer { protected final Getter[] getters; protected final Setter[] setters; protected final int propertySpan; protected final Instantiator instantiator; protected final boolean hasCustomAccessors; protected abstract Instantiator buildInstantiator(Component component); protected abstract Getter buildGetter(Component component, Property prop); protected abstract Setter buildSetter(Component component, Property prop); protected AbstractComponentTuplizer(Component component) { propertySpan = component.getPropertySpan(); getters = new Getter[propertySpan]; setters = new Setter[propertySpan]; Iterator iter = component.getPropertyIterator(); boolean foundCustomAccessor=false; int i = 0; while ( iter.hasNext() ) { Property prop = ( Property ) iter.next(); getters[i] = buildGetter( component, prop ); setters[i] = buildSetter( component, prop ); if ( !prop.isBasicPropertyAccessor() ) { foundCustomAccessor = true; } i++; } hasCustomAccessors = foundCustomAccessor; instantiator = buildInstantiator( component ); } public Object getPropertyValue(Object component, int i) throws HibernateException { return getters[i].get( component ); } public Object[] getPropertyValues(Object component) throws HibernateException { Object[] values = new Object[propertySpan]; for ( int i = 0; i < propertySpan; i++ ) { values[i] = getPropertyValue( component, i ); } return values; } public boolean isInstance(Object object) { return instantiator.isInstance(object); } public void setPropertyValues(Object component, Object[] values) throws HibernateException { for ( int i = 0; i < propertySpan; i++ ) { setters[i].set( component, values[i], null ); } }
This method does not populate the component parent
/** * This method does not populate the component parent */
public Object instantiate() throws HibernateException { return instantiator.instantiate(); } public Object getParent(Object component) { return null; } public boolean hasParentProperty() { return false; } public boolean isMethodOf(Method method) { return false; } public void setParent(Object component, Object parent, SessionFactoryImplementor factory) { throw new UnsupportedOperationException(); } public Getter getGetter(int i) { return getters[i]; } }