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Can anyone tell why is this query not valid?

 
Eduardo Born
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Hello!
I have criteria query that, when executed, results the following exception thrown:



The id attribute is the entity's attribute which was annotated with @Id @GeneratedValue. Basically I'm trying to load the attribute "permissions", which is a collection uninitialized at the time, for the role object whose id is 2. The id attribute is of long type.

Any ideas on why this query would fail?

It seems correct to me...

I can post the code that creates the criteria query here, but it is fairly complicated (as it generates based on a LDAP filter, etc), so I'm hoping the error will be visible from the generated query string and the exception. Please let me know if that's not the case.

Thanks!!
Eduardo Born
 
Eduardo Born
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Some more information...

The criteria query that generated this error was built this way:




The Role and Permission classes have been mapped with JPA and some Hibernate annotations like this:





I was expecting the call to typedQuery.getResultList() to return a list of collections with just one element: the collection of permission objects for the role with id = 2. This is an attempt to select just the "permissions" collection from the object role with id = 2.

I'm new to criteria queries and I'm having a hard time finding what's wrong with it.

What would be the correct criteria query to accomplish this?

Thank you!!

Eduardo
 
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