Hibernate Create Criteria to join the same table twice - tried 2 approach with 2 difference error

Question

I would like to create create criteria for the following native sql.

Unfortunately, I hit error of duplicate associate path when use createCriteria twice. When I try

Answer 1

There is an old Hibernate bug HHH-879 on the problem of org.hibernate.QueryException: duplicate association path opened 2005 and still open...

Other issue is closed without solution HHH-7882

So the option 1) is rather not suitable.

But in the comments of the above bug an usefull workaround is mentioned using exists

So use twice sqlRestriction with exists and a correlated subquery filtering the propper category. You will get only companies connected to both categories.

crit.add( Restrictions.sqlRestriction( 
  "exists (select null from Company_Customercategory a where {alias}.company_Id = a.company_Id and a.CUSTOMERCATEGORYID = ?)",
  1, IntegerType.INSTANCE ) );
crit.add( Restrictions.sqlRestriction( 
  "exists (select null from Company_Customercategory a where {alias}.company_Id = a.company_Id and a.CUSTOMERCATEGORYID = ?)",
  6, IntegerType.INSTANCE ) );

This leads to the following query which provides the correct result

select this_.COMPANY_ID as COMPANY_ID1_2_0_, this_.COMPANY_NAME as COMPANY_NAME2_2_0_ 
from COMPANIES this_ 
where exists (select null from Company_Customercategory a 
              where this_.company_Id = a.company_Id and a.CUSTOMERCATEGORYID =  ?) and 
      exists (select null from Company_Customercategory a 
              where this_.company_Id = a.company_Id and a.CUSTOMERCATEGORYID = ?)