/*******************************************************************************
* This file is part of OpenNMS(R).
*
* Copyright (C) 2011 The OpenNMS Group, Inc.
* OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
*
* OpenNMS(R) is a registered trademark of The OpenNMS Group, Inc.
*
* OpenNMS(R) is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
* by the Free Software Foundation, either version 3 of the License,
* or (at your option) any later version.
*
* OpenNMS(R) 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with OpenNMS(R). If not, see:
* http://www.gnu.org/licenses/
*
* For more information contact:
* OpenNMS(R) Licensing <license@opennms.org>
* http://www.opennms.org/
* http://www.opennms.com/
*******************************************************************************/
package liquibase.ext.opennms.createindex;
import liquibase.database.Database;
import liquibase.database.structure.DatabaseObject;
import liquibase.logging.LogFactory;
import liquibase.sql.Sql;
import liquibase.sql.UnparsedSql;
import liquibase.sqlgenerator.SqlGeneratorChain;
import liquibase.sqlgenerator.core.CreateIndexGenerator;
import liquibase.statement.core.CreateIndexStatement;
public class CreateIndexWithWhereGenerator extends CreateIndexGenerator {
public int getPriority() {
return super.getPriority() + 1;
}
public Sql[] generateSql(final CreateIndexStatement statement, final Database database, final SqlGeneratorChain sqlGeneratorChain) {
final Sql[] superSql = super.generateSql(statement, database, sqlGeneratorChain);
if (statement instanceof CreateIndexWithWhereStatement) {
if (superSql.length != 1) {
LogFactory.getLogger().warning("expected 1 create index statement, but got " + superSql.length);
return superSql;
}
return new Sql[] {
new UnparsedSql(superSql[0].toSql() + " WHERE " + ((CreateIndexWithWhereStatement)statement).getWhere(),
superSql[0].getEndDelimiter(), superSql[0].getAffectedDatabaseObjects().toArray(new DatabaseObject[0]))
};
} else {
return superSql;
}
}
}