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Couple of quick questions

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samueljob

Post subject: Couple of quick questions

Posted: Mon Jan 15, 2007 11:29 am

Beginner

Joined: Mon Jan 08, 2007 11:59 pm
Posts: 31

Hi,
I have a couple of questions:

1. Does N support formula in Discriminator column, i.e. is it possible to set up a subclass "Wife" on Discriminator mapping "Sex=F and SpouseID is not null"

2. Suppose I have an entity A which has a one-to-many relation with B, so I have a set of B's in A. A has a version control, I find that the version of A is updated when I add a new B to the collection, is it possible to suppress this, i.e. is it possible to not update the version column when the collection is modified?

Regards
Job Samuel.

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sergey

Post subject:

Posted: Mon Jan 15, 2007 11:47 am

Contributor

Joined: Wed May 11, 2005 4:59 pm
Posts: 1766
Location: Prague, Czech Republic

Answers for the latest version (1.2.0.Beta3):
1. Yes.
2. Using <set optimistic-lock="false" ...> should do it.

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samueljob

Post subject:

Posted: Tue Jan 16, 2007 11:23 am

Beginner

Joined: Mon Jan 08, 2007 11:59 pm
Posts: 31

I tried

Code:

<set
         name="Bids"
         optimistic-lock="false"
         cascade="save-update"
         inverse="true">
         <key
            column="ItemID" />
         <one-to-many
            class="Bid" />
      </set>

but I am getting XML validation error.

I got the discriminator formula working, thanks.

Job Samuel.

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sergey

Post subject:

Posted: Tue Jan 16, 2007 11:54 am

Contributor

Joined: Wed May 11, 2005 4:59 pm
Posts: 1766
Location: Prague, Czech Republic

Right you are! Will fix this in the next version (1.2.0.CR1):
http://jira.nhibernate.org/browse/NH-868

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samueljob

Post subject:

Posted: Tue Jan 16, 2007 10:26 pm

Beginner

Joined: Mon Jan 08, 2007 11:59 pm
Posts: 31

Thanks Sergey.

Job Samuel

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