Question

我正在尝试使用Hibernate并将hbm2ddl.auto设置为validate，以便Hibernate必须尊重我的数据库架构，而不是在我的Java类周围自动生成表。

我的很多表都是所谓的“查找”或“参考”表，基本上由id，name和tag字段组成：

credit_card_types
    credit_card_type_id           Ex: "12"
    credit_card_type_name         Ex: "Visa"
    credit_card_type_tag          Ex: "VISA"

payment_types
    payment_type_id               Ex: "2"
    payment_type_name             Ex: "Google Checkout"
    payment_type_tag              EX: "GOOGLE_CHECKOUT"

etc.

我想将这些建模如下：

public class BaseLookup {
    private Long id;
    private String name;
    private String tag;

    // ...getters, setters and ctors, etc.
}

public class CreditCardTypes extends BaseLookup {
    // .. perhaps a few other fields, methods, etc...
}

public class PaymentTypes extends BaseLookup {
    // .. perhaps a few other fields, methods, etc...
}

问题是我不希望Hibernate搜索（验证）lookups表：我希望它分别验证名为credit_card_types和payment_types的aginst 2查找表。

我需要哪些注释/配置来允许这种类型的Java继承，但只创建我的2个查找表（而不是3）？提前致谢！

Answer 1

对于您的基类，您将添加以下注释：

@MappedSuperclass
public class BaseLookup implements Serializable {

    @Id
    @Column (name="ID")
    private Long id;

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

    @Column
    private String tag;

    // ...getters, setters and ctors, etc.
}

对于您的孩子课程，您将执行以下操作：

@Table(name = "CREDITCARDTYPES")
public class CreditCardTypes extends BaseLookup {
   // .. perhaps a few other fields, methods, etc...

   @Coulmn (name="FIELD1_COLUMN_NAME")
   private String field1;
}

你可以用同样的方式完成第二节课：

@Table(name = "PAYMENTTYPES")
public class PaymentTypes extends BaseLookup {
   // .. perhaps a few other fields, methods, etc...

   @Coulmn (name="FIELD2_COLUMN_NAME")
   private String field2;
}

Hibernate查找表/类型的注释？

1 个答案: