Comment 1 Doug Clarke 2008-02-04 15:06:08 EST

I do not believe this is currently supported in the initial EclipseLink ORM XSD contributed from TopLink. If it is not supported in the initial schema then it is not a must-have feature for the 1.0 release.

For this sequencing type I would like to consider reusing the @TableGenerator and interpreting its configured values to imply a unary table (one column, one row). The only problem with this approach is there is no simple way to specify that there is no pkColumnName short of a special String. I believe the most important part is that users can use continue to use the @GeneratedValue.

OPTION 1: Use @TableGenerator where value & pk column name are the same

	@Id
	@GeneratedValue(generator = "EMP-SEQ")
	@TableGenerator(name="EMP-SEQ", table = "UNARY_EMP_SEQ", valueColumnName = "VALUE", pkColumnName = "VALUE")
	private int id;


OPTION 2: Add @UnaryTableGenerator like @

	@Id
	@GeneratedValue(generator = "EMP-SEQ")
	@UnaryTableGenerator(name="EMP-SEQ", table = "UNARY_EMP_SEQ", valueColumnName="VALUE")
	private int id;

Comment 2 Guy Pelletier 2008-03-13 13:51:06 EDT

There is current support in the 10.1.3 schema for this functionality. In fact, we need another bug to cover XMLFileSequence support.

Comment 3 Karen Butzke 2008-07-16 16:14:38 EDT

This could be a bit odd since there is no enum option in GenerationType for UNARY_TABLE.  Not sure what the Dali UI would display for the default generation type in this case.

Comment 4 Tom Ware 2009-04-16 10:59:45 EDT

Updating priority due to revised bug categorization process.  See the following page for details:

http://wiki.eclipse.org/EclipseLink/Development/Bugs/Guidelines#Priority_and_Target_Milestone 

If you feel the updated priority is incorrect, please send an email to eclipselink-users@eclipse.org.

Comment 5 Eclipse Webmaster 2022-06-09 10:30:51 EDT

The Eclipselink project has moved to Github: https://github.com/eclipse-ee4j/eclipselink