pointbasedialect.java

人力资源管理系统主要包括：人员管理、招聘管理、培训管理、奖惩管理和薪金管理五大管理模块。

//$Id: PointbaseDialect.java,v 1.6.2.1 2003/08/07 13:08:50 oneovthafew Exp $
//Created on 04 February 2002, 17:35
package net.sf.hibernate.dialect;

import java.sql.Types;

import net.sf.hibernate.cfg.Environment;

/**
 * A <tt>Dialect</tt> for Pointbase.
 * @author  Ed Mackenzie
 */
public class PointbaseDialect extends net.sf.hibernate.dialect.Dialect {
	
	/** 
	 * Creates new PointbaseDialect 
	 */
	public PointbaseDialect() {
		super();
		registerColumnType( Types.BIT, "SMALLINT" ); //no pointbase BIT
		registerColumnType( Types.BIGINT, "BIGINT" );
		registerColumnType( Types.SMALLINT, "SMALLINT" );
		registerColumnType( Types.TINYINT, "SMALLINT" ); //no pointbase TINYINT
		registerColumnType( Types.INTEGER, "INTEGER" );
		registerColumnType( Types.CHAR, "CHAR(1)" );
		registerColumnType( Types.VARCHAR, "VARCHAR($l)" );
		registerColumnType( Types.FLOAT, "FLOAT" );
		registerColumnType( Types.DOUBLE, "DOUBLE PRECISION" );
		registerColumnType( Types.DATE, "DATE" );
		registerColumnType( Types.TIME, "TIME" );
		registerColumnType( Types.TIMESTAMP, "TIMESTAMP" );
		//the BLOB type requires a size arguement - this defaults to
		//bytes - no arg defaults to 1 whole byte!
		//other argument mods include K - kilobyte, M - megabyte, G - gigabyte.
		//refer to the PBdevelopers guide for more info.
		registerColumnType( Types.VARBINARY, "BLOB($l)" );
		registerColumnType( Types.NUMERIC, "NUMERIC(19, $l)" );
		
		getDefaultProperties().setProperty(Environment.USE_OUTER_JOIN, "true");
		
	}
	
	public String getAddColumnString() {
		return "add";
	}
	
	public boolean dropConstraints() {
		return false;
	}
	
	public String getCascadeConstraintsString() {
		return " cascade";
	}
	
	public boolean supportsForUpdate() {
		return false;
	}
	
}