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From Andy Jefferson <a...@jpox.org>
Subject Re: JDO2 annotations : split between JDO and ORM
Date Sun, 15 Oct 2006 17:42:23 GMT
> indexed and unique are certainly being used - also in Element, Key
> and Value. I do not use deleteAction, sequence and valueStrategy
> yet, but I think that it might make sense to use them in the future.

The point that this raises is that my understanding of the "split" JDO-ORM was 
to separate the ORM part out (by ORM I mean the part that can be specified in 
the ORM metadata file) since it best practice to restrict schema-info to 
MetaData (and not have it in annotations). So we would then have 2 sets of 
annotations ... some as JDO and some as ORM. I didn't understand this as 
separating out purely RDBMS-specific concepts that cant be used elsewhere. If 
we go down that route, what do XML datastores use ? Or LDAP ?

e.g specifying an index name, is specifying something specific to the 
datastore in use (which may not be usable in other datastores).

Comments ?


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