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ERROR [illegal attempt to dereference collection]

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terun

Post subject: ERROR [illegal attempt to dereference collection]

Posted: Thu Aug 23, 2007 12:07 pm

Newbie

Joined: Thu Aug 23, 2007 11:59 am
Posts: 10

Code:

@Entity
@NamedQueries( {
    @NamedQuery(name = "A.findDummy", query = "from T t where t.id not in (select a.mask.id from A a where a.id = ?)")

})
public class A {   
   @ManyToMany
   private List<Something> mask;

}


@Entity
public class T{   
   @Id
   private Integer id;
}

Can you help me to rewrite this query?

Code:

from T t where t.id not in (select a.mask.id from A a where a.id = ?)

The error "illegal attempt to dereference collection" is signaled here and here

Thanks

Hibernate version:3.2.2

Last edited by terun on Mon Aug 27, 2007 8:39 am, edited 2 times in total.

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terun

Post subject:

Posted: Fri Aug 24, 2007 4:24 am

Newbie

Joined: Thu Aug 23, 2007 11:59 am
Posts: 10

EDIT#2

I resolve changing the query:

Code:

from T t where t not in (select m from A a join a.mask m where a.id = ?)

The lastest version of hibernate do not support the automatic join.

Bye

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