Hi Expert Group
Are there plans to standardise the mechanism of building custom sequence generators? I could not find any sequence generator enhancements in Early Draft 5.
Existing tools provide proprietary extensions to accomplish this.
EclipseLink has org.eclipse.persistence.sequencing.Sequence
http://wiki.eclipse.org/EclipseLink/Examples/JPA/CustomSequencing
Hibernate has org.hibernate.id.SequenceGenerator
http://www.georgestragand.com/jpaseq.html
For example, you can imagine people wanting to build sequences that include check digits, or custom formatting.
Many thanks
Andrew Ward