_jobScheduleColumn = new TableColumn(_tblJobDefinitions, SWT.NONE);
_jobScheduleColumn.setText("CRON schedule");
_jobScheduleColumn.setWidth((int)(tableWidth * 0.2));
_jobDefinitionsModel = new JobDefinitionsModel(_model.getJobDefinitions());
_jobDefinitionsModel.addListener(new BeanListTableModelListener() {
public void add(Object bean) {
_model.fireModelChanged();
}