Are you asking if you can change/morph your datastore values from Boolean to
String? If so, you'll have to make a copy so the new property is added in
older records. Or do a conversion when getting a record.
You can add a persistance variable at any time, and the property
going forward will be
2011/3/21 Jan Willies :
> I need to move a variable in my bean from type boolean to String. How
> would I do that in GAE/J? Are there any common practices?
>
> Also, how would I deal with the situation when I need to add a
> variable of type boolean or int? They are NULL for old entities which
> we
