public AbstractWorkerManager(String id){
  _id=id;
  _status=new WorkerManagerStatus();
  setExecutionMode(EXECUTION_MODE.NON_SERIAL);
  setupExecutor();
}

public AbstractWorkerManager ( String id ) { _id = id ; _status = new WorkerManagerStatus ( ) ; setExecutionMode ( EXECUTION_MODE . NON_SERIAL ) ; setupExecutor ( ) ; }
set the identifier of the process
