In this way, you can do something different from the EntryCompletion.MatchSelected signal.

 final EntryCompletion completion;
 
 ...
 
 completion.insertActionText(0, "complete");
 completion.insertActionText(1, "another");
 
 completion.connect(new EntryCompletion.ActionActivated() {
     public void onActionActivated(EntryCompletion source, int index) {
         System.out.println("Action " + index + " activated.");
     }
 });