Struct MemoryWriter 

pub struct MemoryWriter { /* private fields */ }

Writer for in-memory output

Implementations

impl MemoryWriter

pub fn new(format: DataFormat) -> Self

Create a new memory writer

pub fn with_format_options(self, options: FormatWriteOptions) -> Self

Set format-specific options

pub fn into_inner(self) -> Vec<u8>

Get the written data

pub fn as_slice(&self) -> &[u8]

Get a reference to the written data

Trait Implementations

impl DataWriter for MemoryWriter

fn write(&mut self, value: &Value, options: &WriteOptions) -> Result<()>

Write a DataFrame to the destination

fn format(&self) -> DataFormat

Get the output format

fn write_lazy(&mut self, lf: &LazyFrame, options: &WriteOptions) -> Result<()>

Write a LazyFrame to the destination (if supported)

fn write_streaming<I>( &mut self, _iter: I, _options: &WriteOptions, ) -> Result<()>

where I: Iterator<Item = Result<Value>>,

Write streaming data (if supported)

fn supports_streaming(&self) -> bool

Check if the writer supports streaming

fn finalize(&mut self) -> Result<()>

Finalize the write operation (flush buffers, etc.)