introduce id() and version() functions - Githubissues

jakartaee / persistence

https://jakartaee.github.io/persistence/

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introduce id() and version() functions #596

Closed gavinking closed 3 months ago

gavinking commented 3 months ago

this is the most minimal form of this which supports what we want to do in Jakarta Data
for now, only allow them in comparison expressions with input parameters
also make the section on Entity Type Expressions more readable

@see #594

gavinking commented 3 months ago

@lukasj The reason I'm proposing this now, even though it seems like something that's otherwise highly non-urgent at best, is that:

We're about to write down something a bit inelegant in the Jakarta Data spec, and, while it's bearable, I would prefer not to have it there frozen in stone until Jakarta is exterminated in the AI apocalypse.
@njr-11 is doing an implementation of Jakarta Data on EclipseLink, and I believe that this would make his life at least slightly easier.

It's not critical, but it would be nice.