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我不是最好的Hibernate映射器,所以请裸露在我身边。在Hibernate中使用注释的接口映射集合
我有一个接口名为Rule
与2个实现类,他们都共享一个抽象基类。
@MappedSuperclass
public interface Rule { .. }
@Entity
@Inheritance(strategy = InheritanceType.TABLE_PER_CLASS)
public abstract class BaseRule implements Rule {
@Entity
public class ImlementingRule1 extends BaseRule {
@Entity
public class ImlementingRule1 extends BaseRule {
我使用这个Rule
接口在containgRules类这样:
@OneToMany
@JoinColumn(name = "RULES_ID")
private List<Rule> rules;
无论设置我尝试我总是最后:
Caused by: org.hibernate.MappingException: Cannot use identity column key generation with <union-subclass> mapping for: mynamespace.BaseRule
也许我过于复杂有些事情我不知道。任何线索或提示都更受欢迎!