JPA: user-defined type is a BasicType?

Question

Instances of the type BasicType represent basic types (including temporal and enumerated types).

Is a BasicType directly mapping to a database column type?

Can any user-defined type be a BasicType?

         Type
  |----------------|
ManagedType    BasicType

Is the value(user-defined class) for @IdClass a ManagedType or BasicType?

Answer 1

If a class is not annotated with @Entity, @MappedSuperclass, @Embeddable, then I would expect it to be classified as a "basic" type. That is, at least, how the JPA provider I use does it and it makes sense to me.