/*
 * 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.annotations.attribute;

import org.hibernate.metamodel.source.annotations.entity.EntityClass;
import org.hibernate.metamodel.source.binder.DiscriminatorSource;
import org.hibernate.metamodel.source.binder.RelationalValueSource;

/**
 * @author Hardy Ferentschik
 */
public class DiscriminatorSourceImpl implements DiscriminatorSource {
	private final EntityClass entityClass;

	public DiscriminatorSourceImpl(EntityClass entityClass) {
		this.entityClass = entityClass;
	}

	@Override
	public boolean isForced() {
		return entityClass.isDiscriminatorForced();
	}

	@Override
	public boolean isInserted() {
		return entityClass.isDiscriminatorIncludedInSql();
	}

    @Override
    public RelationalValueSource getDiscriminatorRelationalValueSource() {
        return entityClass.getDiscriminatorFormula() != null ?
                new DerivedValueSourceImpl( entityClass.getDiscriminatorFormula() )
                : new ColumnValuesSourceImpl( entityClass.getDiscriminatorColumnValues() );
    }

	@Override
	public String getExplicitHibernateTypeName() {
		return entityClass.getDiscriminatorType().getName();
	}
}