hi,

i'm writing a framework and that has some domain-objects. because i'm unexpierenced in respect to hibernate, i don't know about the right choice when picking an id-type (Long? Integer? String? ...). so i decided to leave this choice to the framework user by supplying the id-type as an generic parameter for every domain class. now i'm wondering, if this is worth it's effort. what are the criterias when chosing an id-type? maybe it's appropriate when i already decide on the id-type in the framework!?

maybe Long is always the best choice?

regards, garz

hmmmm

i now got my hands on the book "Hibernate in Action" and i read the part named "Understanding object identity". There they tell me, that Long has been chosen to match the type of identity value produced by native identifier generator. Sounds like i can safely assume that Long is always the best choice when using hibernate (for a new project, no legacy involved, no need to make compromise)? It would be awesome if someone could just give me that nice feeling of beeing sure. In addition i dont want to hook the framework to hibernate. So maybe therefor its better to make the identity type generic?

Does really nobody knows an answer to my question? I thought this kind of stuff is basic and had been dealt with many times before. I justed want an expierenced opinion because i really dont know, even after studying 4 (!!!) hibernate books + the reference guide + search in the forums and google, which is kind of useless when searching for "hibernate id choose", because of to many hits.

regards, garz

now that there is this new credit system i'm encouraged to try it again. :) and i will give credit, prolly for every answer i get, because i never got any answer till now. :) i'm just happy if i wasnt ignored.