java Hibernate OnetoMany映射（按日期范围）？

Question

我想换车。从临时到临时的车费映射到车费类别。然而，我想把车费限制在那些对火车有效的车费。达特。我该怎么做

我发现了一个冬眠的Jira issue，我相信这可能是我问题的根源。还有其他人遇到过这个问题吗？你找到解决办法了吗

@Entity
@Table(name = "TRAIN")
public class Train { 

    @EmbeddedId
    private TrainPK id;

    @Column
    private String trainType;

    @Transient
    private List<TrainFare> trainFares;

    @Embeddable
    public static class TrainPK {

        @Column
        private String company;

        @Column
        private Date departDate;

        @Column 
        private String trainNumber;
    }

    ... setters & getters
}

@Entity
@Table(name = "SEATRATE")
public class SeatRate { 

    @EmbeddedId
    private SeatRatePK id;

    @Column
    private Date expiryDate; 

    @Column
    private String trainNumber;

    @Embeddable
    public static class SeatRatePK { 

        @Column
        private String company

        @Column 
        private Date effectiveDate;

    }

    ... setters & getters
}