Chas, If you want the object to tell you what it is can you not use some form of reflection?
Tim On 20/03/2009 11:03, "Viktor Klang" <viktor.kl...@gmail.com> wrote: > > > On Fri, Mar 20, 2009 at 11:43 AM, Charles F. Munat <c...@munat.com> wrote: >> >> Not really. What I want to do is have the object tell me what it is. >> Unless I'm really misunderstanding isInstanceOf, I have to iterate >> through all the possibilities. Plus, my brain is probably just fried, >> but I'm not seeing how to use it in a match, so I'm having to run >> through a bunch of if statements. I know there's a better way. Just >> can't see it at 3:45 AM. > > But you wrote: ". But then as I'm looping through them, I want to find out > what type of event they really are." > > so when you're looping through them, if you're doing pattern-matching you > could probably just: > > case x : MySubEvent => blah(x) > case y : MyOtherSubEvent => blugh(y) > case _ => ohSnap()! > > >> >> >> Chas. >> >> Viktor Klang wrote: >>> > >>> > >>> > On Fri, Mar 20, 2009 at 9:37 AM, Charles F. Munat <c...@munat.com >>> > <mailto:c...@munat.com>> wrote: >>> > >>> > >>> > I have a BaseEvent object from which various other events (e.g. >>> Seminar) >>> > inherit. I want to pull them all out in a query, so they come out as >>> > BaseEvents. But then as I'm looping through them, I want to find out >>> > what type of event they really are. There is an "event_type" column in >>> > the database, but I don't know how to get at that. >>> > >>> > >>> > Don't fancy "isInstanceOf"? >>> > >>> > >>> > >>> > >>> > Anyone know offhand how to get the class of the objects? This is in >>> Lift >>> > with JPA/Hibernate. >>> > >>> > Thanks, >>> > Chas. >>> > >>> > >>> > >>> > >>> > >>> > -- >>> > Viktor Klang >>> > Senior Systems Analyst >>> > >>>> > > >> >> > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to liftweb@googlegroups.com To unsubscribe from this group, send email to liftweb+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~----------~----~----~----~------~----~------~--~---
