Mapping a FunctionalJava Option with Hibernate

Question

I have a hibernate-mapped Java object, JKL, which is full of a bunch of normal hibernate-mappable fields (like strings and integers).

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Answer 1

You can use Hibernate's custom mapping types. Documentation is here. Here is an analogous example of mapping Scala's Option to a Hibernate mapping.

Simply put, you would need to extend the org.hibernate.UserType interface. You could also create a generic-typed base class with a JKL-typed sub-type, similar to what you see in the Scala example.