alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Hibernate example source code file (AbstractComponentTuplizer.java)

This example Hibernate source code file (AbstractComponentTuplizer.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Hibernate tags/keywords

abstractcomponenttuplizer, componenttuplizer, getter, getter, hibernateexception, hibernateexception, instantiator, iterator, object, object, property, property, reflection, sessionfactoryimplementor, setter, util

The Hibernate AbstractComponentTuplizer.java source code

/*
 * 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
 * @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
	*/
	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];
	}
}

Other Hibernate examples (source code examples)

Here is a short list of links related to this Hibernate AbstractComponentTuplizer.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.