code after Gwt rpc AsyncCallbak will not be executed?

Question

I can\'t understand why the code after the gwt rpc AsyncCallback will not be executed?

for example I have the interface AppService extends RemoteService, So I\'ll have A

Answer 1

You should understand the nature of the Async call. The programm execution will not be waiting when you call service.getCurrentUser. The programm will continue to the next line (boolean isAdmin = false) and it will be true for some time that (currentUser == null) until method getCurrentUser is executing. You should move not executed block of code into the onSuccess handler

This example should look something like this:

service.getCurrentUser(new AsyncCallback(){

    public void onFailure(Throwable caught) {

    }

    public void onSuccess(Employee result) {
        currentUser = result;
        if (currentUser != null) {
            if (currentUser.getUserRole().equals("ROLE_ADMIN") ||
                currentUser.getUserRole().equals("ROLE_MANAGER")) {
                isAdmin = true;
            }
        }

    }

});

I assume that currentUser and isAdmin are class fields, but not local variables. If isAdmin is local than you can wrap this variable into the final array: final boolean[] isAdmin = new boolean[1] and call it like isAdmin[0]