JPA MappedSuperClass Inheritence Strategy

Question

Is @Inheritance , @DiscriminatorValue , @DiscriminatorColumn applicable to @MappedSuperClass ?

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Question is asked because In ORM.XML JPA Specification Entity have attribute :

     "inheritance",
    "discriminatorValue",
    "discriminatorColumn",

but MappedSuperclass does not have .

Answer 1

No, they're not applicable. MappedSuperclass is used for code reuse, and not for entity inheritance. It's only used to share common properties and methods between entities that have, otherwise, nothing in common.