从实体比较ID HQL

所以我想对两个ID从连接我的两个实体比较，嗯，我想更好的解释将是，如果我表现出UA码从实体比较ID HQL

OfferOrder.java

@Data 
@Entity 
@Table(name = "offer_order", schema = "srp") 
@SequenceGenerator(name = "sequence_generator", sequenceName = "srp.offer_order_seq", allocationSize = 1) 
@EqualsAndHashCode(callSuper = false, exclude = { "offerOrderProjectRel", "associatedOrder" }) 
@ToString(callSuper = true) 
@NoArgsConstructor 
public class OfferOrder extends BaseEntity { 
[...] 

    @OneToMany(mappedBy = "pk.offerOrder") 
    private Set<OfferOrderProjectRel> offerOrderProjectRel = new HashSet<OfferOrderProjectRel>(); 
[..] 
}

的ID是BaseEntity

@Id 
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "sequence_generator") 
protected Long id;

，我要这个ID与我的ID从OfferOrderProjectRel

比较

@Data 
    @Entity 
    @Table(name = "offer_order_project_rel", schema = "srp") 
    @AssociationOverrides({ 
      @AssociationOverride(name = "pk.offerOrder", 
        joinColumns = @JoinColumn(name = "offer_order_id")), 
      @AssociationOverride(name = "pk.project", 
        joinColumns = @JoinColumn(name = "project_id")) }) 
    @EqualsAndHashCode(callSuper = false) 
    @ToString(callSuper = true) 
    @NoArgsConstructor 
    public class OfferOrderProjectRel { 

     @EmbeddedId 
     private OfferOrderProjectRelId pk = new OfferOrderProjectRelId(); 

     @Transient 
     @NotNull 
     private OfferOrder offerOrder; 

}

从OfferORderProjectRelId

@Embeddable 
@EqualsAndHashCode(callSuper = false) 
public class OfferOrderProjectRelId implements Serializable { 

    @ManyToOne 
    private OfferOrder offerOrder; 

}

有embeddedID所以之后我显示ü重要的东西（：P）的IM创造问题冬眠

private static final String SELECT_OOPR_TO_SEND = "SELECT R " + 
                "FROM OfferOrderProjectRel R, OfferOrder O, Project P " + 
                "WHERE R.project.id = P.id and O.id = R.offerOrder.id " + 
                "and O.type = 'ORDER' and (P.status = 'PENDING' or P.status ='PROTECTED')" ;

正如你所看到的IM连接的另一个实体存在，但一旦我获得通过这一点，我将能够做另一个我认为。

所以，当我劳克这个的HQL我得到errror

org.hibernate.QueryException：无法解析属性：的offerOrder（或项目）： pl.srp.beans.schema .srp.OfferOrderProjectRel [SELECT R FROM pl.srp.beans.schema.srp.OfferOrderProjectRel R， pl.srp.beans.schema.srp.OfferOrder O，pl.srp.beans.schema.srp.Project P WHERE R.project.id = P.id and O.id = R.offerOrder.id and O.type = 'ORDER'and（P.status ='PENDING'or P.stat us ='PROTECTED'）]

我也尝试过O = R.offerOrder等。所以我的问题呢？

来源

2013-10-22 ojciecmatki

您需要公共getter和setter方法为offerOrder，没有一个getter私有变量不能被称为

来源

2013-10-22 15:21:06 david99world

啊我忘了提及的getter和setter offerOrder等都是全自动制作 – ojciecmatki

反正我得到它，但是，使用R .pk.offerOrder。感谢您的回答;） – ojciecmatki

从实体比较ID HQL

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