问题描述
我正在将休眠实体迁移到 GORM 域类。 在现有应用程序中,我们具有以下表结构。
Table 'Payment'
[Id] [bigint] NOT NULL,[Amount] [bigint] NOT NULL
Table 'Cheque_Payment'
[PaymentId] [bigint] NOT NULL,FK REF Payment COL Id
[ChequeNo] [varchar](100) NOT NULL,Table 'Cash_Payment'
[PaymentId] [bigint] NOT NULL,FK REF Payment COL Id
[ContactNo ] [varchar](100) NOT NULL,
现有的休眠实体如下
@Entity
@Table(name = "Payment")
@Inheritance(strategy = InheritanceType.JOINED)
public class Payment implements Serializable {
private Long id;
private Long amount;
private Date paymentDate;
//constructor,getters and setters
}
@Entity
@Table(name="Cheque_Payment")
@PrimaryKeyJoinColumn(name = "PaymentId")
public class ChequePayment extends Payment {
private String chequeNo;
//constructor,getters and setters
}
@Entity
@Table(name="Cash_Payment")
@PrimaryKeyJoinColumn(name = "PaymentId")
public class CashPayment extends Payment {
private String contactNo
//constructor,getters and setters
}
我正在努力将这些休眠实体迁移到 GORM 实体(grails v4.0.9)。
参考了 grails 文档,但找不到关于 @Inheritance(strategy = InheritanceType.JOINED)
和 @PrimaryKeyJoinColumn(name = "...")
的等效 GORM 实现的信息
解决方法
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