Re: Compound PK generation
Chuck Hill <[email protected]> Mon, 13 Dec 2004 09:35:25 -0800
| Newsgroups | gmane.comp.web.webobjects.eof |
|---|---|
| Message-ID | <[email protected]> |
Why not get rid of the back pointing relationships? As you are not=20 using them, they will eventually become a performance problem anyway. =20= You will have to write cover methods to fetch them when needed and=20 manage referential integrity yourself but it might be a viable=20 solution. Chuck On Dec 9, 2004, at 4:06 AM, Anders Peterson wrote: > Hi, > > I have some entities with compound primary keys. The pk components are=20= > all foreign keys. > > I can't get EOF to generate primary keys for new instances unless I=20 > set the corresponding to-many relationships (leading to the=20 > troublesome entity) to be class attributes. > > This is going to give me a performance problem. Eventually there will=20= > be lots of instances =96 huge to-many arrays. > > I=92m hoping I=92ve missed something. Is the only way to get rid of = the=20 > to-many class attributes to have dedicated primary key columns in=20 > =93all=94 entities? > > /Anders > > _______________________________________________ > EOF mailing list > [email protected] > http://www.omnigroup.com/mailman/listinfo/eof > --=20 Practical WebObjects - a book for intermediate WebObjects developers=20 who want to increase their overall knowledge of WebObjects, or those=20 who are trying to solve specific application development problems. http://www.global-village.net/products/practical_webobjects