hibernate-commits

[<one...@us...>]

Update of /cvsroot/hibernate/Hibernate2/src/net/sf/hibernate/dialect
In directory sc8-pr-cvs1:/tmp/cvs-serv12940

Modified Files:
	FrontBaseDialect.java 
Added Files:
	InformixDialect.java 
Log Message:
* added InformixDialect (Steve Molitor)
* FrontBase does not suport FOR UPDATE (Ron Lussier)

--- NEW FILE: InformixDialect.java ---
package net.sf.hibernate.dialect;

import java.sql.Types;
import net.sf.hibernate.MappingException;

/**
 * Informix dialect. This class is required in order to use Hibernate with
 * Informix.
 *
 * Seems to work with Informix Dynamic Server Version 7.31.UD3, 
 * Informix JDBC driver version 2.21JC3.
 */
public class InformixDialect extends Dialect {

	/**
	 * Creates new <code>InformixDialect</code> instance. Sets up the JDBC /
	 * Informix type mappings.
	 */
	public InformixDialect() {
		super();

		register(Types.BIGINT, "INT8");
		register(Types.BINARY, "BYTE");
		register(Types.BIT, "SMALLINT"); // Informix doesn't have a bit type
		register(Types.CHAR, "CHAR($l)");
		register(Types.DATE, "DATE");
		register(Types.DECIMAL, "DECIMAL");
		register(Types.DOUBLE, "DOUBLE");
		register(Types.FLOAT, "FLOAT");
		register(Types.INTEGER, "INTEGER");
		register(Types.LONGVARBINARY, "BLOB"); // or BYTE
		register(Types.LONGVARCHAR, "CLOB"); // or TEXT?
		register(Types.NUMERIC, "DECIMAL"); // or MONEY
		register(Types.REAL, "SMALLFLOAT");
		register(Types.SMALLINT, "SMALLINT");
		register(Types.TIME, "DATETIME YEAR TO FRACTION(5)");
		register(Types.TIMESTAMP, "DATETIME HOUR TO SECOND");
		register(Types.TINYINT, "SMALLINT");
		register(Types.VARBINARY, "BYTE");
		register(Types.VARCHAR, "VARCHAR($l)");
	}

	/**
	 * @see net.sf.hibernate.dialect.Dialect#getAddColumnString()
	 * @deprecated
	 */
	public String getAddColumnString() {
		return "add";
	}

	/**
	 * @see net.sf.hibernate.dialect.Dialect#supportsIdentityColumns()
	 */
	public boolean supportsIdentityColumns() {
		return true;
	}

	/**
	 * @see net.sf.hibernate.dialect.Dialect#getIdentitySelectString()
	 */
	public String getIdentitySelectString() throws MappingException {
		return "select first 1 dbinfo('sqlca.sqlerrd1') from systables";
	}

	/**
	 * @see net.sf.hibernate.dialect.Dialect#getIdentityColumnString()
	 */
	public String getIdentityColumnString() throws MappingException {
		return "SERIAL NOT NULL";
	}

}
Index: FrontBaseDialect.java
===================================================================
RCS file: /cvsroot/hibernate/Hibernate2/src/net/sf/hibernate/dialect/FrontBaseDialect.java,v
retrieving revision 1.1
retrieving revision 1.2
diff -C2 -d -r1.1 -r1.2
*** FrontBaseDialect.java	1 Mar 2003 21:27:29 -0000	1.1
--- FrontBaseDialect.java	12 Apr 2003 02:09:43 -0000	1.2
***************
*** 4,8 ****
  
  /**
!  * An SQL Dialect for Frontbase.
   *
   * @author	ron lussier	- rlu...@le...
--- 4,19 ----
  
  /**
!  * An SQL Dialect for Frontbase.  Assumes you're using the latest version
!  * of the FrontBase JDBC driver, available from <tt>http://frontbase.com/</tt>
!  * <p>
!  * <b>NOTE</b>: The latest JDBC driver is not always included with the
!  * latest release of FrontBase.  Download the driver separately, and enjoy
!  * the informative release notes.
!  * <p>
!  * This dialect was tested with JDBC driver version 2.3.1.  This driver
!  * contains a bug that causes batches of updates to fail.  (The bug should be
!  * fixed in the next release of the JDBC driver.)  If you are using JDBC driver
!  * 2.3.1, you can work-around this problem by setting the following in your
!  * <tt>hibernate.properties</tt> file: <tt>hibernate.jdbc.batch_size=15</tt>
   *
   * @author	ron lussier	- rlu...@le...
***************
*** 38,40 ****
--- 49,63 ----
  		return " cascade";
  	}
+ 
+ 	/**
+ 	 * Does this dialect support the <tt>FOR UPDATE</tt> syntax? No!
+ 	 *
+ 	 * @return false always. FrontBase doesn't support this syntax,
+ 	 * which was dropped with SQL92
+ 	 */
+ 	public boolean supportsForUpdate()
+ 	{
+ 		return false;
+ 	}
+ 
  }