ValueChangeEvent - origin?

boolean save = false;

Valuechangelistener -> if(save) { do sth; save = false; }

this will make the Valuechangelistener to do nothing when the table is being loaded, then u need a way to turn save = true again.

Valuechangelistener can show u when the Value is changed (table loading) or when the user is focusing a field or losing the focus of it. Textchangelistener (if this is possible for the table) is triggered right before a user actually edits the input of a field. I did this things with Table+TextFields, so I dont know if it will work for you with just an editable table. But as long as u can use a Valuechangelistener and a Textchangelistener it should work for u.

I starts my ValueChangeListener with:

if (!((AbstractField) event.getProperty()).isAttached()){
                            return;
                        }

Than the action is not performed until the table is displayed.