Trait RowDecoder 

pub trait RowDecoder {
    // Required methods
    fn header(&mut self) -> Result<Option<Vec<String>>, Error>;
    fn next_row(&mut self) -> Result<Option<Vec<(String, LoraValue)>>, Error>;
}

Pull-based row decoder. Reads from a std::io::BufRead and yields completed rows one at a time. Used by native Rust callers that already have the input as a stream-like reader.

Required Methods

fn header(&mut self) -> Result<Option<Vec<String>>, Error>

Returns the column names declared in the file header. CSV uses this; JSONL/JSON return None (every row carries its own keys).

fn next_row(&mut self) -> Result<Option<Vec<(String, LoraValue)>>, Error>

Pull the next row as a flat (name, value) vector. Returns Ok(None) once the input is exhausted.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors

impl<R> RowDecoder for CsvDecoder<R>

where R: BufRead,

impl<R> RowDecoder for JsonArrayDecoder<R>

where R: BufRead,

impl<R> RowDecoder for JsonlDecoder<R>

where R: BufRead,