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Reg. Generator in Composite key

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sanramin

Post subject: Reg. Generator in Composite key

Posted: Mon Mar 08, 2010 8:44 am

Newbie

Joined: Mon Mar 08, 2010 8:37 am
Posts: 1

Hi,

I have a composite key in which i need one amongthe key to be set to auto-increment. Could you please guide me how to proceed with this? I have kept my coposite key code below...

Code:

<class name="com.oem.dlms.campaign.dto.CampaignDetails"
      table="CAMPAIGNS">
      <composite-id name="campaignKey"
         class="com.oem.dlms.campaign.dto.CampaignKey">
         <key-property name="campaignId" column="CAMPAIGN_ID"
            type="int" />
         <key-property name="version" column="VERSION_NO" type="int" />
      </composite-id>

      <property name="campaignName" column="NAME" />

I need the campaignId alone to get incremented.

Thanks in advance for your time and valuable guidance.

Regards,
Sakthi.

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nordborg

Post subject: Re: Reg. Generator in Composite key

Posted: Mon Mar 08, 2010 9:11 am

Expert

Joined: Wed Mar 03, 2004 6:35 am
Posts: 1240
Location: Lund, Sweden

I think it is not supported. Read http://docs.jboss.org/hibernate/stable/ ... ompositeid

First paragraph after the note:

Quote:

You cannot use an IdentifierGenerator to generate composite keys. Instead the application must assign its own identifiers.

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