Struct ydb_grpc::generated::ydb::topic::stream_read_message::StartPartitionSessionResponse

pub struct StartPartitionSessionResponse {
    pub partition_session_id: i64,
    pub read_offset: Option<i64>,
    pub commit_offset: Option<i64>,
}

Signal for server that cient is ready to recive data for partition.

Fields

partition_session_id: i64

Partition session identifier of partition to start read.

read_offset: Option<i64>

Reads in this partition session will start from offset no less than read_offset. If read_offset is set, server will check that read_offset is no less that actual committed offset. If check fails then server will send an error message (status != SUCCESS) and close stream. If read_offset is not set, no check will be made. InitRequest.max_lag and InitRequest.read_from could lead to skip of more messages. Server will return data starting from offset that is maximum of actual committed offset, read_offset (if set) and offsets calculated from InitRequest.max_lag and InitRequest.read_from.

commit_offset: Option<i64>

All messages with offset less than commit_offset are processed by client. Server will commit this position if this is not done yet.

Implementations

impl StartPartitionSessionResponse

pub fn read_offset(&self) -> i64

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

pub fn commit_offset(&self) -> i64

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

Trait Implementations

impl Clone for StartPartitionSessionResponse

fn clone(&self) -> StartPartitionSessionResponse

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StartPartitionSessionResponse

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

Formats the value using the given formatter.

impl Default for StartPartitionSessionResponse

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for StartPartitionSessionResponse

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Message for StartPartitionSessionResponse

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 StartPartitionSessionResponse

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

This method tests for self and other values to be equal, and is used by ==.

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

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

impl Serialize for StartPartitionSessionResponse

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for StartPartitionSessionResponse