AcessoDados.EngineFactory.CriarCommand C# (CSharp) Метод

        public IDbCommand CriarCommand()
        {
            switch (this.banco)
            {
                case Banco.SQLSERVER:
                    dbCommand = new SqlCommand();
                    break;
                case Banco.ORACLE:
                    //dbCommand = new OracleCommand();
                    dbCommand = new SqlCommand();
                    break;
                default:
                    break;
            }

            return dbCommand;
        }

 /// <summary>
 /// Define as configuraçoes basicas do objeto
 /// </summary>
 public Engine(string str, Banco banco)
 {
     factory = new EngineFactory(banco);
     connectionString = factory.DecriptaString(str);
     dbCommand = factory.CriarCommand();
     dbConnection = factory.CriarConnection(connectionString);
 }