我在Class中有一个Map<Object，String>类型的字段。当父类对象保存时，我如何从Map中保存对象？我知道问题出在哪里，但我解决不了。我不能把注解@OneToMane表示cascade = ALL，谈论targets the type 'java.lang.String' which is not an '@Entity' type，我认为这适用于map. value上的注解。请告诉我正确的路。
多谢了。
代码：

@Entity
@Table
public class Profile {
....
    @ElementCollection
    @MapKeyJoinColumn(name="addressId", referencedColumnName = "addressId")
    @Column(name = "description")
    @CollectionTable(name = "ProfileAddress",
            joinColumns = {@JoinColumn(name = "profileId", referencedColumnName = "profileId")})
    private Map<Address, String> addresses; //String it's description for address - "home", "work" etc. I want separate table with parentObjectId, addressId, description. And need that create/delete/update Address object's with Parent object together.

错误：object references an unsaved transient instance - save the transient instance before flushing