@Entity
    @SequenceGenerator(name="[notification.id_seq]_generator", sequenceName="[notification.id_seq]", allocationSize=1)
    public class Notification {

        ...
        @Id
        @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="[notification.id_seq]_generator")
            @Column(name="id")
            public Long getId () {
                return _id;
            }
        ..
        }

Hibernate:
    select
        next value for `notification.id_seq`

Hibernate:
    select
        next value for [notification.id_seq]