@Entity
 @Table(name="TOTO")
 @Customizer(mypackage.MyCustomizer.class)
 public class Toto implements Serializable {
     ...
     	@Id
	@Column(name = "Blabla")
	@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "bla_SQ")
	private long idblabla;
...
 }