org.hibernate.metamodel.relational.DerivedValue Maven / Gradle / Ivy
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010 by Red Hat Inc and/or its affiliates or by
* third-party contributors as indicated by either @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.relational;
import org.hibernate.dialect.Dialect;
/**
* Models a value expression. It is the result of a formula mapping.
*
* @author Steve Ebersole
*/
public class DerivedValue extends AbstractSimpleValue {
private final String expression;
public DerivedValue(TableSpecification table, int position, String expression) {
super( table, position );
this.expression = expression;
}
@Override
public String toLoggableString() {
return getTable().toLoggableString() + ".{derived-column}";
}
@Override
public String getAlias(Dialect dialect) {
return "formula" + Integer.toString( getPosition() ) + '_';
}
/**
* Get the value expression.
* @return the value expression
*/
public String getExpression() {
return expression;
}
}