Is it possible to build a JPA entity by extending a POJO?
- by Freiheit
Lets say I have the following POJO:
public class MyThing {
private int myNumber;
private String myData;
//assume getter/setter methods
}
Is it now possible to extend this POJO as a JPA entity?
@Entity
@Table(name = "my_thing")
public class MyThingEntity extends MyThing implements Serializable {
@Column(name = "my_number")
//?????????
@Column(name = "my_data")
//????????
}
I want to keep the POJO separate from the JPA entity. The POJO lives in a different project and is often used without a persistence layer, my project wants to persist it in a database and do so without the overhead of mapping from a POJO to an entity and back.
I understand that JPA entities are POJOs, but in order to use it I would have to include a library that implements javax.persistence and the other projects using the same base object have no use for a persistence layer.
Is this possible? Is this a good idea?
