Struct MessageMetadata 

pub struct MessageMetadata {
    pub producer_name: String,
    pub sequence_id: u64,
    pub publish_time: u64,
    pub properties: Vec<KeyValue>,
    pub partition_key: Option<String>,
    pub compression: Option<i32>,
    pub uncompressed_size: Option<u32>,
    pub num_messages_in_batch: Option<i32>,
    pub event_time: Option<u64>,
    pub encryption_algo: Option<String>,
    pub null_value: Option<bool>,
    pub num_chunks_from_msg: Option<i32>,
}

Fields

producer_name: String

sequence_id: u64

publish_time: u64

properties: Vec<KeyValue>

partition_key: Option<String>

compression: Option<i32>

uncompressed_size: Option<u32>

num_messages_in_batch: Option<i32>

event_time: Option<u64>

encryption_algo: Option<String>

null_value: Option<bool>

num_chunks_from_msg: Option<i32>

Implementations

impl MessageMetadata

pub fn partition_key(&self) -> &str

Returns the value of partition_key, or the default value if partition_key is unset.

pub fn compression(&self) -> i32

Returns the value of compression, or the default value if compression is unset.

pub fn uncompressed_size(&self) -> u32

Returns the value of uncompressed_size, or the default value if uncompressed_size is unset.

pub fn num_messages_in_batch(&self) -> i32

Returns the value of num_messages_in_batch, or the default value if num_messages_in_batch is unset.

pub fn event_time(&self) -> u64

Returns the value of event_time, or the default value if event_time is unset.

pub fn encryption_algo(&self) -> &str

Returns the value of encryption_algo, or the default value if encryption_algo is unset.

pub fn null_value(&self) -> bool

Returns the value of null_value, or the default value if null_value is unset.

pub fn num_chunks_from_msg(&self) -> i32

Returns the value of num_chunks_from_msg, or the default value if num_chunks_from_msg is unset.

Trait Implementations

impl Clone for MessageMetadata

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MessageMetadata

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

Formats the value using the given formatter.

impl Default for MessageMetadata

fn default() -> Self

Returns the “default value” for a type.

impl Message for MessageMetadata

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(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where 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( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where 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(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

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

where Self: Default,

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

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

where Self: Sized,

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

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

where Self: Sized,

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

impl PartialEq for MessageMetadata

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MessageMetadata