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Performance Problem in Deleting Parent Object

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linnuxxy

Post subject: Performance Problem in Deleting Parent Object

Posted: Thu Jan 31, 2008 5:06 am

Newbie

Joined: Thu Jan 31, 2008 4:56 am
Posts: 2

hi..
I have a problem in working with parent/child model.....
when I delete the parent.. Hibernate delete each of its children in separate delete command instead of using WHERE Parent_ID=?

That make the delete process very slow... so How to solve that?

Mapping files look like this

Parent Object:

Code:

      <set name="trace" lazy="true" order-by="timeRecieved"
         inverse="true" cascade="all-delete-orphan">
         <key column="vid" />
         <one-to-many
            class="ObjectLocation" />
      </set>

Child Object:

Code:

        <many-to-one name="vehicle" column="vid"
           class="Vehicle" not-null="true"
           cascade="all" />

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linnuxxy

Post subject:

Posted: Fri Feb 01, 2008 10:54 am