Hi Luka, How are you updating the object without having a reference of actual object to be updated. In such case, you should be first retrieving the actual object from db and then change the attributes and then save that object. This process doesn't result in any loss of data and you get what you want.
Thanks Romesh On Thu, Sep 23, 2010 at 5:40 PM, luka <[email protected]> wrote: > Hi, > > I have some JDO persistent objects which contains lots of attributes. > So in some cases I use specific Fetch Groups and retrieve only some > attributes which are relevant. > In these cases when I change the attributes which I retrieved and try > to update them the rest > of the attributes (which I did not retrieved) are being reset to null. > > Can I update only partial attributes in a JDO persisted object? > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
