org.hibernate.sql.ANSIJoinFragment Maven / Gradle / Ivy
/*
* 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.sql;
import org.hibernate.AssertionFailure;
/**
* An ANSI-style join
*
* @author Gavin King
*/
public class ANSIJoinFragment extends JoinFragment {
private StringBuilder buffer = new StringBuilder();
private StringBuilder conditions = new StringBuilder();
public void addJoin(String tableName, String alias, String[] fkColumns, String[] pkColumns, JoinType joinType) {
addJoin(tableName, alias, fkColumns, pkColumns, joinType, null);
}
public void addJoin(String tableName, String alias, String[] fkColumns, String[] pkColumns, JoinType joinType, String on) {
String joinString;
switch (joinType) {
case INNER_JOIN:
joinString = " inner join ";
break;
case LEFT_OUTER_JOIN:
joinString = " left outer join ";
break;
case RIGHT_OUTER_JOIN:
joinString = " right outer join ";
break;
case FULL_JOIN:
joinString = " full outer join ";
break;
default:
throw new AssertionFailure("undefined join type");
}
buffer.append(joinString)
.append(tableName)
.append(' ')
.append(alias)
.append(" on ");
for ( int j=0; j