}
private void fetchEnabledSchedules(final CountDownLatch latch) {
MeasurementScheduleCriteria criteria = new MeasurementScheduleCriteria();
criteria.addFilterEnabled(true);
criteria.fetchDefinition(true);
criteria.setPageControl(PageControl.getUnlimitedInstance());
addFilterKey(criteria);
GWTServiceLookup.getMeasurementDataService().findMeasurementSchedulesByCriteria(criteria,
new AsyncCallback<PageList<MeasurementSchedule>>() {