mongodb morphia问题
public class BasicQuestion<T extends BasicOption> {
private Integer seq;
private String name;
private List<T> options;
}
public class BasicOption {
private Integer seq;
private String name;
}
@Entity(value = "p_track_question", noClassnameStored = true)
public class IllnessQuestion extends BasicQuestion<IllnessOption> {
@Id
private ObjectId id;
}
public class IllnessOption extends BasicOption {
}
设计了问题基类BasicQuestion,选项基类BasicOption,有病情问题类IllnessQuestion 继承BasicQuestion, 病情选项IllnessOption 继承BasicOption , 只是使用了泛型。
protected AdvancedDatastore dsForRW;
dsForRW.createQuery(IllnessQuestion.class) 报错,org.mongodb.morphia.mapping.mappingException.
哪位大神知道问题原因,指点一下,感激不尽! 急急急,在线等