Trait agnes::source::csv::IntoCsvSrcSpec

pub trait IntoCsvSrcSpec {
    type CsvSrcSpec;
    fn into_csv_src_spec(
        self, 
        headers: &HashMap<String, usize>, 
        num_fields: usize
    ) -> Result<Self::CsvSrcSpec>;
}

A trait for converting an object into a CsvSrcSpecCons.

Associated Types

type CsvSrcSpec

Resultant CsvSrcSpecCons object.

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Required methods

fn into_csv_src_spec(
    self,
    headers: &HashMap<String, usize>,
    num_fields: usize
) -> Result<Self::CsvSrcSpec>

Convert this into a CsvSrcSpecCons cons-list. headers is a map of column header names to column indices. num_fields is the number of columns in the CSV file (for checking for indexing errors).

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Implementors

impl IntoCsvSrcSpec for Nil

type CsvSrcSpec = Nil

fn into_csv_src_spec(
    self,
    _headers: &HashMap<String, usize>,
    _num_fields: usize
) -> Result<Nil>

impl<Label, DType, Tail> IntoCsvSrcSpec for SpecCons<Label, DType, Tail> where
    Tail: IntoCsvSrcSpec, 

type CsvSrcSpec = CsvSrcSpecCons<Label, DType, Tail::CsvSrcSpec>

fn into_csv_src_spec(
    self,
    headers: &HashMap<String, usize>,
    num_fields: usize
) -> Result<CsvSrcSpecCons<Label, DType, Tail::CsvSrcSpec>>

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