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ruchiahuja10
 Post subject: Caching not taking place on update
PostPosted: Fri Jul 15, 2005 4:38 am 
Newbie

Joined: Thu Jun 02, 2005 5:03 am
Posts: 15
I am trying to update some data, but its not being put in cache. I tried to debug and found that the following is happening -

1. TreeCache PUT Region = /net/sf/hibernate/cache/UpdateTimestampsCache Key = T_TKOP_OPER_PROFILE
2. Hibernate: update T_TKOP_OPER_PROFILE set LST_NM=? where OPER_ID=?
3. TreeCache REMOVE Region = /test/TTkopOperProfile Key = OP10

I dont understand why TreeCache.REMOVE is getting called instead of TreeCache.PUT.
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ruchiahuja10
 Post subject:
PostPosted: Sat Jul 16, 2005 2:36 am 
Newbie

Joined: Thu Jun 02, 2005 5:03 am
Posts: 15
i have figured this out. This is happening because i have set the dynamic-update attribute in hbm to true.

When dynamic-update is set to true, insert and update invalidate the cache. Does anyone knows why this is happening?
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gavin
 Post subject:
PostPosted: Sat Jul 16, 2005 2:54 am 
Hibernate Team
Hibernate Team

Joined: Tue Aug 26, 2003 12:50 pm
Posts: 5130
Location: Melbourne, Australia
It happens because I explicitly coded it to happen.

In BasicEntityPersister:

Code:
   public boolean isCacheInvalidationRequired() {
      return hasFormulaProperties() || ( !isVersioned() && ( entityMetamodel.isDynamicUpdate() || getTableSpan() > 1 ) );
   }


In general, Hibernate knows waaay more about when it is safe to add things to the cache than you will probably think of for yourself.
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