許多一對多複合主鍵，在Hibernate中

額外的列的關係我有3個數據表：
應用 {id_app，版本，名稱}
客戶 {org_id，名}
協會 {id_app，版本，org_id，狀態}。

應用程序具有複合主鍵（id_app，版本），Customers的主鍵是org_id，關聯具有複合主鍵（id_app，version，org_id）。許多一對多複合主鍵，在Hibernate中

在我的Java應用程序，我有以下類別：

@Entity 
@Table(name = "Applications") 
@IdClass(ApplicationId.class) 
public class Application implements Serializable { 

    private static final long serialVersionUID = 1L; 

    @Id 
    @Column(name = "ID_APP", nullable = false) 
    private String idApp; 
    @Id 
    @Column(name = "VERSION", nullable = false) 
    private String version; 
    @Column(name = "NAME") 
    private String name; 

    @OneToMany(mappedBy = "idPk.appPk", fetch = FetchType.LAZY) // cascade = CascadeType.ALL) 
    private List<Association> custApps; 

    // getters and setters 
}

public class ApplicationId implements Serializable { 

    private static final long serialVersionUID = 1L; 

    private String idApp; 
    private String version; 

    //hashcode and equals 
}

@Entity 
@Table(name = "CUSTOMERS") 
public class Customer implements Serializable { 

    private static final long serialVersionUID = 1L; 

    @Id 
    @Column(name = "ORG_ID", unique = true, nullable = false) 
    private Integer orgID; 

    @Column(name = "NAME") 
    private String name; 

    @OneToMany(mappedBy="idPk.customerPk", fetch = FetchType.LAZY) 
    private List<Association> custApps; 

    //getters and setters 
}

@Entity 
@Table(name = "ASSOCIATIONS") 
@AssociationOverrides({ 
    @AssociationOverride(name = "idPk.appPk", joinColumns = @JoinColumn(name = "ID_APP")), 
    @AssociationOverride(name = "idPk.appPk", joinColumns = @JoinColumn(name = "VERSION")), 
    @AssociationOverride(name = "idPK.customerPk", joinColumns = @JoinColumn(name = "ORG_ID")) 
    }) 
public class Association implements Serializable { 

    private static final long serialVersionUID = 1L; 

    private AssociationId idPk = new AssociationId(); 
    private String state; 

    public Association() { 
     super(); 
    } 

    @EmbeddedId 
    public AssociationId getIdPk() { 
     return idPk; 
    } 

    @Transient 
    public Customer getCustomerPk() { 
     return idPk.getCustomerPk(); 
    } 

    @Transient 
    public Application getAppPk() { 
     return idPk.getAppPk(); 
    } 

    @Column(name = "STATE") 
    public String getState() { 
     return state; 
    } 

    //setters , hashCode and equals 
}

@Embeddable 
public class AssociationId implements Serializable { 

    private static final long serialVersionUID = 1L; 

    private Application appPk; 
    private Customer customerPk; 

    // here is the problem ? 
    @ManyToOne(cascade = CascadeType.ALL) 
    @JoinColumns({ @JoinColumn(name = "ID_APP", referencedColumnName = "ID_APP"), 
     @JoinColumn(name = "VERSION", referencedColumnName = "VERSION") }) 
    public Application getAppPk() { 
     return appPk; 
    } 

    @ManyToOne(cascade = CascadeType.ALL) 
    @JoinColumn(name="ORG_ID") 
    public Customer getCustomerPk() { 
     return customerPk; 
    } 

    //setter, hashCode and equals 
}

什麼是正確的註釋？這種關係在應用程序和客戶之間是多對多的，我爲此創建了關聯表，併爲額外的列「狀態」創建了關聯表。
現在我收到這個錯誤：引用來自sla.model.Association的sla.model.Application的外鍵具有錯誤的列數。應該是2。
請幫忙。

來源

2016-06-10 SimLine

http://docs.jboss.org/hibernate/orm/5.1/userguide/html_single/Hibernate_User_Guide.html#identifiers-composite - 關聯 –

這不是我的情況，我嘗試了類似的東西，但它不起作用，因爲我在應用程序表 – SimLine

上也有一個複合主鍵請再次閱讀。我鏈接到的部分說：*在下面的示例中，PersonAddress實體標識符由兩個@ManyToOne關聯*組成。這**完全**你有什麼。上面的例子顯示了各種其他解決方案，所有解決方案都有一個ManyToOne關聯作爲標識符的一部分。 –

-1

完成。我改變如下：
在協會類：

@AssociationOverrides({ 
@AssociationOverride(name = "idPk.appPk", joinColumns = { @JoinColumn(name = "ID_APP", referencedColumnName = "ID_APP"), 
    @JoinColumn(name = "VERSION", referencedColumnName = "VERSION") }), 
@AssociationOverride(name = "idPK.customerPk", joinColumns = @JoinColumn(name = "ORG_ID")) 
})

來源

2016-06-10 21:54:42 SimLine

許多一對多複合主鍵，在Hibernate中

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