org.hibernate.dialect.Ingres10Dialect Maven / Gradle / Ivy
package org.hibernate.dialect;
import java.sql.Types;
import java.util.Properties;
import org.hibernate.Hibernate;
import org.hibernate.cfg.Environment;
import org.hibernate.dialect.function.NoArgSQLFunction;
/**
* A SQL dialect for Ingres 10 and later versions.
*
* Changes:
*
* - Add native BOOLEAN type support
*
*
* @author Raymond Fan
*/
public class Ingres10Dialect extends Ingres9Dialect {
public Ingres10Dialect() {
super();
registerBooleanSupport();
}
// Boolean column type support
/**
* The SQL literal value to which this database maps boolean values.
*
* @param bool The boolean value
* @return The appropriate SQL literal.
*/
public String toBooleanValueString(boolean bool) {
return bool ? "true" : "false";
}
protected void registerBooleanSupport() {
// Column type
// Boolean type (mapping/BooleanType) mapping maps SQL BIT to Java
// Boolean. In order to create a boolean column, BIT needs to be mapped
// to boolean as well, similar to H2Dialect.
registerColumnType( Types.BIT, "boolean" );
registerColumnType( Types.BOOLEAN, "boolean" );
// Functions
// true, false and unknown are now valid values
// Remove the query substitutions previously added in IngresDialect.
Properties properties = getDefaultProperties();
String querySubst = properties.getProperty(Environment.QUERY_SUBSTITUTIONS);
if (querySubst != null) {
String newQuerySubst = querySubst.replace("true=1,false=0","");
properties.setProperty(Environment.QUERY_SUBSTITUTIONS, newQuerySubst);
}
}
}