JPA Interview Questions and Answers
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The Metamodel interface is used by JPA for this purpose.
We can obtain this interface's object using the method of getMetamodel from an EntityManger or EntityMangerFactory.
The implicit polymorphism strategy is present in Hibernate but it is not present in JPA.
This means that regardless of the inheritance strategy, the objects of all the descendant classes are returned in each entity request.
We can use the TYPE function in the where condition for turning polymorphism off in JPQL.
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