相当于Grails中的InheritanceType.TABLE_PER_CLASS？
我想为3个域类创建3个单独的表：A，B扩展A，C扩展B但是我希望它们的表不相互连接。
在hibernate中，我会在grails中使用InheritanceType.TABLE_PER_CLASS，它会等同于什么？
尝试使用tablePerHierarchy false
class Payment { Integer amount static mapping = { tablePerHierarchy false } } class CreditCardPayment extends Payment { String cardNumber } 查看更多： http ： //grails.org/doc/latest/guide/single.html#5.5.2.3%20Inheritance%20Strategies
我试图实现的东西，是的，有可能用grails，这是一个弯曲勺子一点实现它：
在grails 3下执行此操作
您有一个您希望扩展的基类，并且具有相同字段的子表，即TABLE_PER_CLASS：
我找到了另一个有帮助的post，但有一条评论，但现在在这篇文章中正确扩展和解释：
这将是我们的基础域类，但不是在grails-app/domains/中创建它，而是在src/main/groovy/test下创建
package test abstract class Tester { String name String something static mapping = { tablePerConcreteClass true id generator: 'increment' version false } }
接下来是grails-app/domains/test实际域类：
package test class Tester1 extends Tester { }
和
package test class Tester2 extends Tester { }
看看mysql：
mysql> show create table tester2; +---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Table | Create Table | +---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | tester2 | CREATE TABLE `tester2` ( `id` bigint(20) NOT NULL, `something` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL, `name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci | +---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec) mysql> show create table tester1; +---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | Table | Create Table | +---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ | tester1 | CREATE TABLE `tester1` ( `id` bigint(20) NOT NULL, `something` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL, `name` varchar(255) COLLATE utf8mb4_unicode_ci NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci | +---------+-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+ 1 row in set (0.00 sec)