I think that making the payload attribute optional is ok, but I also vote
the groups optional. As you say, it has become a very important mechanism.
And really, how much harder do this requirements make it to develop
On Fri, 03 Jul 2009 12:06:41 +0200, Emmanuel Bernard
> I was talking to Mike Keith from Oracle the other day and he
> concerned at us adding more and more mandatory attributes to
> constraint definitions.
> He was proposing to make the payload attribute optional. In other
> words, custom annotations would not have to add this property,
> though the spec would recommend it and all built-in annotations
> would have it.
> The idea is to keep life easy for constraint developers.
> I am sympathetic to the idea, anybody fiercely against?
> PS: Mike was also arguing for making groups optional but I am more
> reluctant on that, groups has become an important mechanism in BV,
> so I would keep that mandatory. Thoughts?