The C++ DataSource Class

The abstract class DataSource cannot be instantiated directly but is instead instantiated though one of its related classes; typically via a QueryResult object returned by methods executeQuery() and executePreparedQuery() of classes McoSqlEngine, RemoteSqlEngine and McoMultithreadedSqlEngine.

For an overview see page C++ Classes

The only DataSource method of interest (not shown here) is release() which is called by the QueryResult object's destructor.