Enum PollTransition

pub enum PollTransition {
    Acquired,
    Renewed,
    TookOver,
    Reacquired,
    Followed,
}

The state-machine transition classified by one poll attempt.

This is an outcome label, not separately persisted durable state. It is meaningful only with the PollOutcome produced by the committed outer transaction.

Variants

Acquired

A released or never-created durable state was acquired immediately.

Renewed

An exact, locally unexpired Leadership token was renewed.

TookOver

An unchanged foreign Observation was replaced after its persisted duration.

Reacquired

An expired Observation of this same participant was acquired again.

Followed

A durable owner was observed without a permitted leadership transition.

This is returned for PollOutcome::Follower and never stages an ownership mutation.

Trait Implementations

impl Clone for PollTransition

fn clone(&self) -> PollTransition

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for PollTransition

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

Formats the value using the given formatter.

impl PartialEq for PollTransition

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

impl Eq for PollTransition

impl StructuralPartialEq for PollTransition