Enum google_api_proto::google::spanner::executor::v1::concurrency::ConcurrencyMode

pub enum ConcurrencyMode {
    StalenessSeconds(f64),
    MinReadTimestampMicros(i64),
    MaxStalenessSeconds(f64),
    ExactTimestampMicros(i64),
    Strong(bool),
    Batch(bool),
}

Concurrency mode set for read-only transactions, exactly one mode below should be set.

Variants

StalenessSeconds(f64)

Indicates a read at a consistent timestamp that is specified relative to now. That is, if the caller has specified an exact staleness of s seconds, we will read at now - s.

MinReadTimestampMicros(i64)

Indicates a boundedly stale read that reads at a timestamp >= T.

MaxStalenessSeconds(f64)

Indicates a boundedly stale read that is at most N seconds stale.

ExactTimestampMicros(i64)

Indicates a read at a consistent timestamp.

Strong(bool)

Indicates a strong read, must only be set to true, or unset.

Batch(bool)

Indicates a batch read, must only be set to true, or unset.

Implementations

impl ConcurrencyMode

pub fn encode(&self, buf: &mut impl BufMut)

Encodes the message to a buffer.

pub fn merge( field: &mut Option<ConcurrencyMode>, tag: u32, wire_type: WireType, buf: &mut impl Buf, ctx: DecodeContext, ) -> Result<(), DecodeError>

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

pub fn encoded_len(&self) -> usize

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

Trait Implementations

impl Clone for ConcurrencyMode

fn clone(&self) -> ConcurrencyMode

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ConcurrencyMode

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

Formats the value using the given formatter.

impl PartialEq for ConcurrencyMode

fn eq(&self, other: &ConcurrencyMode) -> 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 Copy for ConcurrencyMode

impl StructuralPartialEq for ConcurrencyMode