/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, 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.dialect.function;
import java.util.List;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.type.Type;
/**
* Essentially the same as {@link org.hibernate.dialect.function.StandardSQLFunction},
* except that here the parentheses are not included when no arguments are given.
*
* @author Jonathan Levinson
*/
public class ConditionalParenthesisFunction extends StandardSQLFunction {
public ConditionalParenthesisFunction(String name) {
super( name );
}
public ConditionalParenthesisFunction(String name, Type type) {
super( name, type );
}
public boolean hasParenthesesIfNoArguments() {
return false;
}
public String render(List args, SessionFactoryImplementor factory) {
final boolean hasArgs = !args.isEmpty();
StringBuffer buf = new StringBuffer();
buf.append( getName() );
if ( hasArgs ) {
buf.append( "(" );
for ( int i = 0; i < args.size(); i++ ) {
buf.append( args.get( i ) );
if ( i < args.size() - 1 ) {
buf.append( ", " );
}
}
buf.append( ")" );
}
return buf.toString();
}
}