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Aggregation relationship via JPA annotations

Julian F. Perez
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I am trying to establish the aggregation relationship between two Java classes through JPA annotations in order to persist them into a database.


Such as mentioned here, the aggregation relationship is unidirectional and thus, only it is necessary to map one side. From the solution given by this webpage, I think the solution will be:
However, in some examples of aggregation, the many side class appears inside the one side class. Thus, I am considering this too:
Which option is the proper one?
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