Question

Hibernate Detached Criteria

Asked by: bavibm

I have a table called INV_HEADER which is associated to many other tables.
When I execute HQL or Detached criterial to get few records of INV_HEADER, It is executing quries for associted tables of INV_HEADER also.

Lets think that, INV_HEADER is got 10 associations. 10 tables PKs are FKs in INV_HEADER table

lets think that INV_STATUS and SO_HEADER I want to get only InvStatus and SoHeader objects should only come along with InvHeader Object when its query executed.

Here is detached Criteria and HBM.xml attached.

Please guide me

Thanks
Srini

I have written 2 types of codes. both were failed to get only specified assocated objects. Query is executing quries for all associated tables which is a performance Issue.
 
Code is here:
    	DetachedCriteria dCriteria = DetachedCriteria.forClass(InvHeader.class);
    	dCriteria.setResultTransformer(DetachedCriteria.DISTINCT_ROOT_ENTITY);
    	dCriteria.setFetchMode("invStatus", FetchMode.JOIN);
    	dCriteria.setFetchMode("soHeader",FetchMode.JOIN);
    	dCriteria.add(Restrictions.in("id", invHeaderIds));
 
	    	queryBuffer.append("from InvHeader ih ");
	    	queryBuffer.append(" left join fetch ih.soHeader soh ");
	    	queryBuffer.append("left join fetch ih.invStatus invS  ");
	     	queryBuffer.append(" where ih.id in( ").append(invHeaderIdsBuffer.toString()).append(")");

                                  
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Asked On
2009-09-16 at 12:09:37ID24737510
Topics

J2EE Frameworks

,

Spring

Participating Experts
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Points
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Comments
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Answers

 

by: dravidnsrPosted on 2009-09-16 at 22:13:51ID: 25353044

Can u send the Error Stack !!

 

by: dravidnsrPosted on 2009-09-16 at 22:21:40ID: 25353064

Check ur DB is Transient. ??
if detach pblm rise  they may not be Transient so u test that one !!
if u need help tell me !??

 

by: bavibmPosted on 2009-09-17 at 09:14:33ID: 25357825

There is no Error. Its keep on executing queries for long time. In the real secnario, it has to bring 3 inv_header objects from 1000 records at max in the inv_header table.

As I mentioned in the question, It also executing quries for so_header table and inv_status tables queries for its internal associated objects, etc... this chain is keep on going. Becuase, for each association it was defined lazy=false.

I can do lazy=true is one solution. but If I want to get only 2 assciated objects instread of all 10 associated objects.. inthe InvHeader, What query that i need to write?

Please hlep me.

 

by: dravidnsrPosted on 2009-09-17 at 10:35:26ID: 25358821

dou check that DB is transitant ??

 

by: dravidnsrPosted on 2009-09-17 at 10:43:36ID: 25358909

 

by: bavibmPosted on 2009-09-17 at 12:08:19ID: 31629631

Good Article. Thanks for the help.

20120131-EE-VQP-002

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