Maps of basic and embedded values
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So far you’ve done some cool things with JPA. From simple lookups to complex queries to advanced searching, you’ve thoroughly explored the Java Persistence API and its CRUD capabilities.
So what’s left? Well, you’ve only touched the surface on the ways you can map objects to database tables. So far your entities have been very straightforward, containing only basic types that the JPA provider can directly and unambiguously convert to and from relational database field types. In reality, your entities will not be so trivial. You have already ...