Hi Greg, Are you on the developer mailinglist too ? we are just discussing this topic there and would like to formalize your input a bit more
If we're going to refactor we might as well go for as much as possible (MHO) Thanks! -- Wouter > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:andromda-user- > [EMAIL PROTECTED] On Behalf Of Greg Johnson > Sent: Tuesday, June 29, 2004 4:34 AM > To: 'Users AndroMDA' > Subject: Re: [Andromda-user] 3.0m2 hibernate cartridge fails if > <<entity>>does not declare a <<primary key>> > > hi guys, > if changes are being made, can i also suggest that <ValueOject> be changed > to > <Value> for consistency? > > ("Object" is redundant and, being pedantic, <ValueObject> is a class > anyway, not > an object :-)) > > regards, > greg johnson > > ----- Message from [EMAIL PROTECTED] --------- Date: Sat, 19 Jun > 2004 > 21:32:45 -0400 From: Chad Brandon <[EMAIL PROTECTED]>Reply-To: Chad > Brandon <[EMAIL PROTECTED]> Subject: Re: [Andromda-user] 3.0m2 > hibernate > cartridge fails if <<entity>> does not declare a <<primary key>> To: > [EMAIL PROTECTED], Greg Johnson > <[EMAIL PROTECTED]>, > 'Users AndroMDA' <[EMAIL PROTECTED]> > > > ----- Original Message ----- > > From: "Wouter Zoons" <[EMAIL PROTECTED]> > > To: "Greg Johnson" <[EMAIL PROTECTED]>; "'Users AndroMDA'" > > <[EMAIL PROTECTED]> > > Sent: Friday, June 18, 2004 5:51 PM > > Subject: Re: [Andromda-user] 3.0m2 hibernate cartridge fails if > <<entity>> > > does not declare a <<primary key>> > > > > > >> hi Greg, > >> > >> my comments are inserted below > >> > >> > >> Greg Johnson wrote: > >> > >> > hi wouter, > >> > thanks for your reply - understand. > >> > > >> > i was using the hibernate documentation that says: > >> > > >> > "The identifier property is optional. You can leave it off and let > >> > Hibernate > >> > keep track of object identifiers internally. However, for many > >> > applications it > >> > is still a good (and very popular) design decision." > >> > > >> ah good to know, I'll have to investigate this a little more. > >> > >> > which would seem to be ok for a composite association. but then, as > >> > you point > >> > out, hibernate requires either an id or compoiste id for any mapped > >> > class. > >> > > >> > i guess if you wanted to be pedantic, you should not need to declare > a > >> > <primary > >> > key> in the pim, and have the hibernate cartridge allocate the id. > >> > > >> > >> good that you bring up this issue because I too find it strange to have > >> to declare the PrimKey in the PIM, as it is not part of any business > >> object's properties > >> > >> > while on the subject of hibernate, the sterotype name <entity> is a > bit > >> > misleading. > >> > > >> > strictly, <entity> should be reserved for first class objects only > >> > (compare with > >> > <value object>) and not have an overloaded implication of > persistence. > >> > > >> > as the hibernate docs say: > >> > "An entity exists independently of any other objects holding > >> > references to the > >> > entity." and "Unlike entities, values (in particular collections and > >> > components) are persisted and deleted by reachability" > >> > > >> > ie there should be a separate stereotype <persistent> which can be > >> > applied to > >> > either <entity> or <value object> classes. > >> > > >> > >> very good, I like this ... good timing too, because if we decide to > have > >> new stereotype names we will need to fix them asap (before milestone 2) > >> I would like to have Matthias' response to this one though, as I am not > >> alone to decide > >> > >> I vote for! anyone else ? > > > > +1 for me as well! > > > >> > >> > >> > thanks again, > >> > > >> cheers > >> -- Wouter > >> > >> > >> > >> > >> ------------------------------------------------------- > >> This SF.Net email is sponsored by The 2004 JavaOne(SM) Conference > >> Learn from the experts at JavaOne(SM), Sun's Worldwide Java Developer > >> Conference, June 28 - July 1 at the Moscone Center in San Francisco, CA > >> REGISTER AND SAVE! http://java.sun.com/javaone/sf Priority Code > NWMGYKND > >> _______________________________________________ > >> Andromda-user mailing list > >> [EMAIL PROTECTED] > >> https://lists.sourceforge.net/lists/listinfo/andromda-user > > > ----- End message from [EMAIL PROTECTED] ----- > > > > > > ------------------------------------------------------- > This SF.Net email sponsored by Black Hat Briefings & Training. > Attend Black Hat Briefings & Training, Las Vegas July 24-29 - > digital self defense, top technical experts, no vendor pitches, > unmatched networking opportunities. 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