JPA and generics

Question

I\'m wondering how an abstract class with generics would handle with JPA? I mean what kind of annotations do I need for the field?

Consider these:

@Mappe         


        

Answer 1

We can. if the T implements Serializable

@Entity
public class IgsSubject extends BasicObject implements Serializable{

    private static final long serialVersionUID = -5387429446192609471L;

@MappedSuperclass
public class IgsBasicLog extends BasicObject {

    @ManyToOne
    @JoinColumn(name = "ITEM_ID")
    private T item;

@Entity
public class IgsLogA extends IgsBasicLog implements Serializable {
    private static final long serialVersionUID = -8207430344929724212L;
}