Lazy-loading with Spring HibernateDaoSupport ?

Posted by umanga on Stack Overflow See other posts from Stack Overflow or by umanga
Published on 2010-01-27T06:41:11Z Indexed on 2010/03/30 7:23 UTC
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Greetings I am developing a non-webapplication using Spring+Hibernate. My question is how the HibernateDaoSupport handles lazy-loading , because after a call do DAO , the Session is closed.

Take a look at following psuedo-code:

DAO is like:

CommonDao extends HibernateDaoSupport{
 Family getFamilyById(String id);
 SubFamily getSubFamily(String familyid,String subfamilyid);
}

Domain model is like:

Family{
 private List<SubFamily> subfamiles;
 public List<SubFamily> getSubFamiles();
}

SubFamily{
 private Family family; 
 public Family getFamily();
}

In the application I get DAO from app-context and want to following operations.Is this possible to do with lazy-loading because AFAIK after every method (getFamilyById() , getSubFamily() ) the session is closed.

CommonDAO dao=//get bean from application context;
Family famA=dao.getFamilyById(familyid);
//
//Do some stuff
List<SubFamily> childrenA=fam.getSubFamiles();

SubFamily asubfamily=dao.getSubFamily(id,subfamilyid);
//
//Do some other stuff
Family famB=asubfamily.getFamily();

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