I am using regular inner joins for an alternative. Andrus
> On Feb 15, 2017, at 9:18 PM, Hugi Thordarson <h...@karlmenn.is> wrote: > > Hi all, > I need to generate a WHERE EXISTS clause in a SelectQuery. > > I see EJBQL supports EXISTS and I can create an EJBQLQuery that works fine > with it, but unfortunately the query I’m working with (and converting from > EOF) is constructed using a huge amount of Expressions, so I can't really use > EJBQL. > > So… I’m guessing this requires the creation of a custom Expression class? Is > there a guide somewhere for creating your own custom Expression classes? > > Cheers, > - hugi