Struct WriterBuilder 

pub struct WriterBuilder<'a, W> { /* private fields */ }

Convenient builder struct for configuring and instantiating a Writer.

Implementations

impl<'a, W: Write> WriterBuilder<'a, W>

pub fn new() -> Self

Creates a builder instance to construct a Writer.

pub fn set_metadata(self, k: &str, v: &str) -> Self

Set any custom metadata for the datafile.

pub fn set_codec(self, codec: Codec) -> Self

Set one of the available codecs. This requires the respective feature flags to be enabled.

pub fn set_schema(self, schema: &'a Schema) -> Self

Provide the writer with a reference to the schema file.

pub fn set_datafile(self, w: W) -> Self

Set the underlying output stream. This can be any type that implements the Write trait.

pub fn set_flush_interval(self, interval: usize) -> Self

Set the flush interval (in bytes) for the internal buffer. It’s the amount of bytes post which the internal buffer is written to the underlying datafile or output stream.. Defaults to DEFAULT_FLUSH_INTERVAL.

pub fn build(self) -> Result<Writer<'a, W>, AvrowErr>

Builds the Writer instance consuming this builder.

Trait Implementations

impl<'a, W: Write> Default for WriterBuilder<'a, W>

fn default() -> Self

Returns the “default value” for a type.