Struct JsonlFormatter 

pub struct JsonlFormatter { /* private fields */ }

JSON Lines formatter.

Outputs each row as a single-line JSON object. Format: {"col1": val1, "col2": val2, ...}\n

Implementations

impl JsonlFormatter

pub fn new() -> Self

Create a new JSON Lines formatter.

Trait Implementations

impl Default for JsonlFormatter

fn default() -> Self

Returns the “default value” for a type.

impl Formatter for JsonlFormatter

fn write_header( &mut self, _writer: &mut dyn Write, columns: &[Column], ) -> Result<()>

Write the header (column names) to the output.

fn write_row(&mut self, writer: &mut dyn Write, row: &Row) -> Result<()>

Write a single row to the output.

fn write_footer(&mut self, _writer: &mut dyn Write) -> Result<()>

Write the footer to the output.

fn supports_streaming(&self) -> bool

Returns true if this formatter supports streaming output.