disable cascade for many-to-one

[flyabovesun]

I have two class, Campaign and Country. My country table has fixed data and should not be changed in program.
Campaign has many-to-one relation to Country. I do not want to have cascade update/delete on this relations. And there is no cascade set up on Campaign class. But it still update the country table. How could I disable that?
Here is part of my configuration:
in Campaign


@ManyToOne
@JoinColumn(name="countryId", referenceColName="countryId")
private Country country;

Inside Country class, there is no any configuration and properties related to Campaign.

Thanks a lot.

[venosov]

Hi, review the configuration using javax.persistence.CascadeType:

@ManyToOne(cascade=CascadeType.ALL)
@JoinColumn(name="countryId", referenceColName="countryId")
private Country country;

[flyabovesun]

I do not want to have cascade. Even I did not give cascade=CascadeType.ALL, it still modify country information. I like to keep country information unchanged when I change Campaign object.
Thanks.