Struct MessageData

pub struct MessageData {
    pub offset: i64,
    pub seq_no: i64,
    pub created_at: Option<Timestamp>,
    pub data: Vec<u8>,
    pub uncompressed_size: i64,
    pub message_group_id: String,
}

One client message representation.

Fields

offset: i64

Partition offset in partition that assigned for message.

unique value for clientside deduplication -

seq_no: i64

Topic:Partition:Offset Sequence number that provided with message on write from client.

created_at: Option<Timestamp>

Timestamp of creation of message provided on write from client.

data: Vec<u8>

Compressed client message body.

uncompressed_size: i64

Uncompressed size of client message body. sent as is from WriteRequest, without check on server side. May be empty (for writes from old client) or wrong (if bug in writer). Use it for optimization purposes only, don’t trust it.

message_group_id: String

Filled if message_group_id was set on message write.

Trait Implementations

impl Clone for MessageData

fn clone(&self) -> MessageData

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MessageData

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

Formats the value using the given formatter.

impl Default for MessageData

fn default() -> MessageData

Returns the “default value” for a type.

impl Message for MessageData

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>

where B: BufMut, Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>

where B: Buf, Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>

where B: Buf, Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for MessageData

fn eq(&self, other: &MessageData) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for MessageData