在我的应用程序中,我使用Spring Data和hibernate作为JPA提供程序来持久化和读取数据.

我有顶级实体类：

@Entity
@Getter @Setter
@Table(name = "operation")
@Inheritance(strategy = InheritanceType.JOINED)
@EqualsAndHashCode(of = {"operationId"})
public abstract class Operation implements Serializable {
    public static final int OPERATION_ID_LENGTH = 20;
    @Id
    @Column(name = "operation_id",length = OPERATION_ID_LENGTH,nullable = false,columnDefinition = "char")
    private String operationId;
    @Column(name = "operation_type_code")
    @Getter(AccessLevel.NONE)
    @Setter(AccessLevel.NONE)
    private String operationTypeCode;
    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "begin_timestamp",nullable = false)
    private Date beginTimestamp = new Date();
    @Temporal(TemporalType.TIMESTAMP)
    @Column(name = "end_timestamp")
    private Date endTimestamp;
    @Column(name = "operation_number",length = 6,columnDefinition = "char")
    private String operationNumber;
    @Enumerated(EnumType.STRING)
    @Column(name = "operation_status",length = 32,nullable = false)
    private OperationStatus status;
    @ManyToOne(optional = false)
    @JoinColumn(name = "user_id")
    private User user;
    @ManyToOne
    @JoinColumn(name = "terminal_id")
    private Terminal terminal;
    @Column(name = "training_mode",nullable = false)
    private boolean trainingMode;
}

对于继承的类,我有相应的存储库：

public interface ConcreteOperationRepository extends JpaRepository

@Transactional
@Test
public void shouldFindOperationByPeriodAndStatusAndWorkstationId() {
    Date from = new Date(Calendar.getInstance().getTime().getTime());
    List