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Inheritance - Recovering child reference instead superclass

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mXavier16

Post subject: Inheritance - Recovering child reference instead superclass

Posted: Tue Aug 26, 2014 2:42 pm

Newbie

Joined: Tue Aug 26, 2014 2:25 pm
Posts: 2

Hibernate people! Hello everyone!

I need something I think, it's really possible but I don't know if JPA/Hibernate can provide me.

I have this hierarchy:

Code:

Class A{}
Class B extends A{}
Class C extends A{}

I would like to query in table A but returning subclass objects as references, even if the subclass table (B or C) does not have records. This way:

Code:

List<A> list = session.findAll(A.class); // I need instances of B or C class. I can provide this type as a parameter.
for(A record : list){
  B b = (B) record;
}

I would like this cast be possible.

Was I clear?

Thanks all!

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mXavier16

Post subject: Re: Inheritance - Recovering child reference instead superclass

Posted: Thu Aug 28, 2014 5:04 pm