Enum gapi_grpc::google::spanner::v1::request_options::Priority

#[repr(i32)]pub enum Priority {
    Unspecified,
    Low,
    Medium,
    High,
}

The relative priority for requests. Note that priority is not applicable for [BeginTransaction][google.spanner.v1.Spanner.BeginTransaction].

The priority acts as a hint to the Cloud Spanner scheduler and does not guarantee priority or order of execution. For example:

• Some parts of a write operation always execute at PRIORITY_HIGH, regardless of the specified priority. This may cause you to see an increase in high priority workload even when executing a low priority request. This can also potentially cause a priority inversion where a lower priority request will be fulfilled ahead of a higher priority request.
• If a transaction contains multiple operations with different priorities, Cloud Spanner does not guarantee to process the higher priority operations first. There may be other constraints to satisfy, such as order of operations.

Variants

Unspecified

PRIORITY_UNSPECIFIED is equivalent to PRIORITY_HIGH.

Low

This specifies that the request is low priority.

Medium

This specifies that the request is medium priority.

High

This specifies that the request is high priority.

Implementations

impl Priority

pub fn is_valid(value: i32) -> bool

Returns true if value is a variant of Priority.

pub fn from_i32(value: i32) -> Option<Priority>

Converts an i32 to a Priority, or None if value is not a valid variant.

Trait Implementations

impl Clone for Priority

fn clone(&self) -> Priority

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Priority

impl Debug for Priority

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

Formats the value using the given formatter.

impl Default for Priority

fn default() -> Priority

Returns the “default value” for a type.

impl Eq for Priority

impl From<Priority> for i32

fn from(value: Priority) -> i32

Performs the conversion.

impl Hash for Priority

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

pub fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given Hasher.

impl Ord for Priority

fn cmp(&self, other: &Priority) -> Ordering

This method returns an Ordering between self and other.

#[must_use]pub fn max(self, other: Self) -> Self

Compares and returns the maximum of two values.

#[must_use]pub fn min(self, other: Self) -> Self

Compares and returns the minimum of two values.

#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self

Restrict a value to a certain interval.

impl PartialEq<Priority> for Priority

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

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

#[must_use]pub fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

impl PartialOrd<Priority> for Priority

fn partial_cmp(&self, other: &Priority) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

#[must_use]pub fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator.

#[must_use]pub fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator.

#[must_use]pub fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator.

#[must_use]pub fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralEq for Priority

impl StructuralPartialEq for Priority