persistence
This is the archive for persistence.
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- Reusing JPA models using embedded entities and composition
We’ve all heard of the debate regarding inheritance vs composition. Composition is certainly favored more over inheritance unless there is an “is-a” relationship between two classes.
In the ORM world, specifically in JPA, composition is achieved using join-relationships (i.e. One-To-One, One-To-Many, Many-To-One, Many-To-Many), often overlooked is the functionality to embed a class in your models using […]
