[Java][JPA][Hibernate] UUID & Hibernate

Model.java

@Entity
public class Employee extends AbstractBaseEntity {
  //  Approach 1:
  //  @Id
  //  public String id;

  //  Approach 2:
  @Id
  // default column type is byte array
  @Type(type = "org.hibernate.type.PostgresUUIDType") // or type = "pg-uuid"
  @GeneratedValue(generator = "uuid")
  @GenericGenerator(
          name = "uuid",
          strategy = "org.hibernate.id.UUIDGenerator",
          parameters = {
                  @Parameter(
                          name = "uuid_gen_strategy_class",
                          value = "org.hibernate.id.uuid.CustomVersionOneStrategy"
                  )
          }
  )
  public UUID id;
  
  public AbstractBaseEntity() {
    //  Approach 1:
    //  this.id = UUID.randomUUID().toString();
  }
}