About Question enthuware.oce-jpad.v6.2.559 :

[M_Z]

Although option B is fine, the explanation is not accurate:

It depends on whether a field or a property (i.e. a getter method for id) is annotated with @Id.

It also depends on <access> element (see JPA 2.0 specification section 12.2.3.2).

Remember that @Id must be present for every entity class (or its superclass).

ID may be provided in object-relation mapping file instead of @Id annotation, like:

Code: Select all

<attributes>
    <id name="my_id_property" />
</attributes>

[admin]

Explanation has been appropriately modified.

thank you for your feedback!