When to use @Embedded and @Embeddable?

Question

Is it possible to annotate a class as @Embeddable or a property as @Embedded?

Sample code:

@Embeddable
class A{
...
}

cla         


        

Answer 1

You would use @Embeddable and @Embedded together. You mark your class as @Embeddable, which indicates that this class will not exist in the DB as a separate table. Now when you use @Embedded on the field itself.

The word embeddable and embedded gives you a big clue actually.

Embeddable = This class can be embedded in a class Embedded = This class will now be embedded in your class as a field.