public void initDAO() {
if (m_cmdhelper.isEntityDefined()) {
TangoKey commandKey = new TangoKey();
TangoKeyTool.registerCommand(commandKey, m_cmdhelper.getDeviceName(),
m_cmdhelper.getEntityName());
StringMatrixCommandDataSource cmdArray = (StringMatrixCommandDataSource) refreshingManager
.createDataSource(commandKey);
cmdArray.setData(null);
AbstractMatrix<String> values = cmdArray.getData();
if (values != null) {
String[] valueList = (String[]) values.getFlatValue();
if (valueList != null && valueList.length > 0) {
setValueList(valueList);
}