Struct TestEncoder 

pub struct TestEncoder;

RowEncoder writing each row as u32 little-endian length + bytes. Decode captured frames with decode_rows.

Trait Implementations

impl Clone for TestEncoder

fn clone(&self) -> TestEncoder

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for TestEncoder

impl Debug for TestEncoder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TestEncoder

fn default() -> TestEncoder

Returns the “default value” for a type.

impl RowEncoder<Owned<Vec<u8>>> for TestEncoder

fn encode<'buf>( &mut self, rec: &Record<Vec<u8>>, buf: &mut BytesMut, ) -> Result<(), SinkError>

Append rec’s encoding to buf. Errors are record-level and subject to the sink stage’s ErrorPolicy — except errors of ErrorClass::Fatal, which stop the pipeline regardless of policy (fatal means the encoder itself is broken, e.g. the row type cannot match the target schema; every subsequent record would fail identically).

fn buffered_bytes(&self) -> usize

Bytes the encoder is holding internally that have not yet been flushed to a frame. Row formats append directly in encode and buffer nothing, so the default is 0. Columnar formats (which must transpose a whole block before any bytes exist) return the approximate size of the block under assembly; the terminal stage adds this to the shard buffer length when deciding whether to seal a chunk, so a columnar block still respects ChunkConfig::target_bytes.

fn finish_chunk(&mut self, buf: &mut BytesMut) -> Result<(), SinkError>

Finalize the pending chunk: flush any internally-buffered rows into buf as exactly one complete, self-describing wire frame, leaving the encoder empty and ready for the next chunk. Row formats already wrote every row in encode, so the default is a no-op. The terminal stage calls this immediately before it seals each EncodedChunk — in steady state, on data lulls, and at drain — so a columnar encoder’s buffered rows are never silently dropped.