Hibernate 查找表/类型的注释？

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，而不是围绕我的 Java 类自动生成表。

我的很多表都是所谓的“查找”或“参考”表，它们基本上由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：我希望它验证分别称为 credit_card_types 和 payment_types 的 2 个查找表。

我需要哪些注解/配置才能允许这种类型的 Java 继承但只创建 2 个查找表（而不是 3 个）？提前致谢！

Answer 1

为您的基类添加以下注释：

@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.
}

对于您的孩子的课程，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做第二节课：

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

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