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Hibernate example source code file (DiscriminatorSource.java)

This example Hibernate source code file (DiscriminatorSource.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

discriminatorsource, discriminatorsource, relationalvaluesource, relationalvaluesource, string, string

The Hibernate DiscriminatorSource.java source code

/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2011, 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.metamodel.source.binder;

/**
 * Contract for sources of information about a mapped discriminator.
 *
 * @author Hardy Ferentschik
 * @author Steve Ebersole
 */
public interface DiscriminatorSource {
	/**
	 * Obtain the column/formula information about the discriminator.
	 *
	 * @return The column/formula information
	 */
	public RelationalValueSource getDiscriminatorRelationalValueSource();

	/**
	 * Obtain the discriminator type.  Unlike the type of attributes, implementors here should generally specify the type
	 * in case of no user selection rather than return null because we cannot infer it from any physical java member.
	 *
	 * @return The discriminator type
	 */
	public String getExplicitHibernateTypeName();

	/**
	 * "Forces" Hibernate to specify the allowed discriminator values, even when retrieving all instances of the
	 * root class.
	 *
	 * @return {@code true} in case the discriminator value should be forces, {@code false} otherwise. Default
	 * is {@code false}.
	 */
	boolean isForced();

	/**
	 * Set this to {@code false}, if your discriminator column is also part of a mapped composite identifier.
	 * It tells Hibernate not to include the column in SQL INSERTs.
	 *
	 * @return {@code true} in case the discriminator value should be included in inserts, {@code false} otherwise.
	 * Default is {@code true}.
	 */
	boolean isInserted();
}

Other Hibernate examples (source code examples)

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