Comments on: Hibernate: Why should I Force Discriminator? http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/ Ganesh\ Sat, 31 Jul 2010 07:07:49 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: izle http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-70768 izle Fri, 16 Apr 2010 13:33:22 +0000 http://www.gmarwaha.com/blog/?p=100#comment-70768 thanx for article. ? exact my problem with this article. please blog more often thanx for article. ? exact my problem with this article. please blog more often

]]> By: Vinod http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-68685 Vinod Tue, 23 Feb 2010 21:20:36 +0000 http://www.gmarwaha.com/blog/?p=100#comment-68685 I am just guessing here ... maybe the default is the way it is, cuz Hibernate folks might have thought that the default naming strategy will be the one thats going to be used more commonly when a new schema is being worked on and thus the table/column names are generated automatically by Hibernate. The need to explicitly map attributes to columns is something they probably thought could be supported by the 'Force Discriminator' annotation while deciding on the default for cases where Hibernate might be used against a pre-existing schema. I am just guessing here … maybe the default is the way it is, cuz Hibernate folks might have thought that the default naming strategy will be the one thats going to be used more commonly when a new schema is being worked on and thus the table/column names are generated automatically by Hibernate. The need to explicitly map attributes to columns is something they probably thought could be supported by the ‘Force Discriminator’ annotation while deciding on the default for cases where Hibernate might be used against a pre-existing schema.

]]> By: dekorasyon http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-68613 dekorasyon Mon, 22 Feb 2010 00:20:05 +0000 http://www.gmarwaha.com/blog/?p=100#comment-68613 thank you very nice article and project... thank you very nice article and project…

]]> By: Gargy http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-68325 Gargy Mon, 15 Feb 2010 10:06:56 +0000 http://www.gmarwaha.com/blog/?p=100#comment-68325 thanx for article. ? exact my problem with this article. please blog more often. thanx for article. ? exact my problem with this article. please blog more often.

]]> By: Ganeshji Marwaha http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-67229 Ganeshji Marwaha Tue, 19 Jan 2010 10:58:20 +0000 http://www.gmarwaha.com/blog/?p=100#comment-67229 @Mike - If you can post your email id here, I will send you an email... We can take it from there... @Mike – If you can post your email id here, I will send you an email… We can take it from there…

]]> By: Mike http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-66506 Mike Wed, 30 Dec 2009 15:40:05 +0000 http://www.gmarwaha.com/blog/?p=100#comment-66506 Ganesh, What is the best way to contact you directly regarding a feature request on another one of your projects? We might be willing to pay to get the feature implemented, thanks! Ganesh, What is the best way to contact you directly regarding a feature request on another one of your projects? We might be willing to pay to get the feature implemented, thanks!

]]> By: Alexandra http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-65706 Alexandra Thu, 10 Dec 2009 08:19:43 +0000 http://www.gmarwaha.com/blog/?p=100#comment-65706 hey ganesh, i am missing your insightful blogs, you r one hell of a unique blogger and it is very sad that u dont blog more often! do become active. love alex. hey ganesh, i am missing your insightful blogs, you r one hell of a unique blogger and it is very sad that u dont blog more often! do become active. love alex.

]]> By: Guillaume BINET http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-65704 Guillaume BINET Thu, 10 Dec 2009 08:13:39 +0000 http://www.gmarwaha.com/blog/?p=100#comment-65704 Hi, I just walked the same path for the exact same problem, too bad I didn't find your article first. My logical conclusion is that the default behavior is an optimization when you navigate the object graph : it supposes that the foreign ID you are coming from is *unique* across the instances of the mixed types, then it works (it avoids to apply the formula for nothing). Still with the default behaviour if you query one of the subclass directly, it will apply the formula because in this case it has only this mean to discriminate them. IMHO the default behaviour should be the safe one and an option like @AssumeDiscriminatedIDs could be available for the current one. Hi,
I just walked the same path for the exact same problem, too bad I didn’t find your article first.

My logical conclusion is that the default behavior is an optimization when you navigate the object graph : it supposes that the foreign ID you are coming from is *unique* across the instances of the mixed types, then it works (it avoids to apply the formula for nothing).

Still with the default behaviour if you query one of the subclass directly, it will apply the formula because in this case it has only this mean to discriminate them.

IMHO the default behaviour should be the safe one and an option like @AssumeDiscriminatedIDs could be available for the current one.

]]> By: travesti http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-64753 travesti Sun, 15 Nov 2009 02:52:22 +0000 http://www.gmarwaha.com/blog/?p=100#comment-64753 Recently, when I was working for nboomi.com, I faced an issue when mapping a OneToMany relationship to the sub-classes of “Single Table Inheritance” strategy. Recently, when I was working for nboomi.com, I faced an issue when mapping a OneToMany relationship to the sub-classes of “Single Table Inheritance” strategy.

]]> By: Evden Eve Nakliyat http://www.gmarwaha.com/blog/2009/08/26/hibernate-why-should-i-force-discriminator/comment-page-1/#comment-62475 Evden Eve Nakliyat Sat, 19 Sep 2009 13:37:02 +0000 http://www.gmarwaha.com/blog/?p=100#comment-62475 Cool article. THANKS. Cool article. THANKS.

]]>