@SuppressWarnings("unchecked")
protected <T> T prepareDao(Class<?> cls) throws Exception {
try {
dba = (DBA) cls.newInstance();
dba.setDbConfig(DB_CONFIG);
return (T) dba;
} catch (Exception e) {
throw e;
}
}
private void removeAllKeys(ColumnFamily cf) {
for (String key : dba.getAllKeys(cf)) dba.deleteKey(cf, key);
}