- * [__construct description]
- * @param [type] $host [description]
- * @param [type] $username [description]
- * @param [type] $password [description]
- * @param [type] $dbname [description]
+ * __construct class constructor method that permit to initialize
+ * the connection to the RDBMS database
+ * @param string $host RDBMS hostname
+ * @param string $username RDBMS user
+ * @param string $password RDBMS user password
+ * @param string $dbname RDBMS database to use
+ * @return object an object which represents the connection to a RDBMS Server.