hibernate不急于加载@any association

Question

我无法在hibernate中急切地加载多态相关对象。我知道默认的FetchType渴望@Any，但我不能急于加载字段。下面是一段代码片段：

@Entity
public class ActionTemplate {

@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;
@Any(metaColumn = @Column(name ="protocol_type"),fetch = 
FetchType.EAGER)
@AnyMetaDef(idType = "long",metaType = "string",metaValues = {@MetaValue(targetEntity = Http.class,value = "http")})
@JoinColumn(name = "protocol_id")
@Cascade({org.hibernate.annotations.CascadeType.ALL})
private ActionProtocol protocol;
}

public interface ActionProtocol {
ProtocolType getType();
}


@Entity
public class Http implements ActionProtocol{
            //some data fields and methods
}

当我从hibernate通过id获取它时，会出现延迟初始化异常。我不明白为什么会这样。谁能帮忙吗？

Answer 1

这是一只冬眠中的虫子，已经10年了。https://hibernate.atlassian.net/browse/HHH-3574