/*
* 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;
import java.sql.Types;
import org.hibernate.dialect.function.AnsiTrimEmulationFunction;
import org.hibernate.dialect.function.SQLFunctionTemplate;
import org.hibernate.type.StandardBasicTypes;
/**
* An SQL dialect targeting Sybase Adaptive Server Enterprise (ASE) 15 and higher.
* <p/>
* TODO : verify if this also works with 12/12.5
*
* @author Gavin King
*/
public class SybaseASE15Dialect extends AbstractTransactSQLDialect {
public SybaseASE15Dialect() {
super();
registerColumnType( Types.LONGVARBINARY, "image" );
registerColumnType( Types.LONGVARCHAR, "text" );
registerFunction( "second", new SQLFunctionTemplate( StandardBasicTypes.INTEGER, "datepart(second, ?1)") );
registerFunction( "minute", new SQLFunctionTemplate(StandardBasicTypes.INTEGER, "datepart(minute, ?1)") );
registerFunction( "hour", new SQLFunctionTemplate(StandardBasicTypes.INTEGER, "datepart(hour, ?1)") );
registerFunction( "extract", new SQLFunctionTemplate( StandardBasicTypes.INTEGER, "datepart(?1, ?3)" ) );
registerFunction( "mod", new SQLFunctionTemplate( StandardBasicTypes.INTEGER, "?1 % ?2" ) );
registerFunction( "bit_length", new SQLFunctionTemplate( StandardBasicTypes.INTEGER, "datalength(?1) * 8" ) );
registerFunction( "trim", new AnsiTrimEmulationFunction( AnsiTrimEmulationFunction.LTRIM, AnsiTrimEmulationFunction.RTRIM, "str_replace" ) );
}
// Overridden informational metadata ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
public boolean supportsCascadeDelete() {
return false;
}
public int getMaxAliasLength() {
return 30;
}
/**
* By default, Sybase string comparisons are case-insensitive.
* <p/>
* If the DB is configured to be case-sensitive, then this return
* value will be incorrect.
*/
public boolean areStringComparisonsCaseInsensitive() {
return true;
}
public String getCurrentTimestampSQLFunctionName() {
return "getdate()";
}
/**
* Actually Sybase does not support LOB locators at al.
*
* @return false.
*/
public boolean supportsExpectedLobUsagePattern() {
return false;
}
public String getCrossJoinSeparator() {
return ", ";
}
}