An example of securing Errai Bus RPCs with Errai Security

RemoteService.java

@Remote
@RestrictedAccess(roles = "user")
public interface RemoteService {
  
  public void authenticatedUserService();
  
  /*
   * Because this method and its enclosing class are both restricted,
   * a user must have both roles to access this.
   */
  @RestrictedAccess(roles = "admin")
  public void adminService();
}

RemoteServiceCaller.java

public RemoteServiceCaller {

  @Inject
  private Caller<RemoteService> serviceCaller;
  
  public void callServices() {
    /*
     * This call uses default error-handling. Security errors will
     * cause page-redirection.
     */
    serviceCaller.call(new RemoteCallback<Void>() {
      public void callback(Void o) {
        // handle success
      }
    }).authenticatedUserService();
  }
}