Trait OnEraStart 

pub trait OnEraStart<AccountId> {
    // Required methods
    fn on_era_start(era: EraIndex, validators: &[AccountId]);
    fn weight(validators: u32) -> Weight;

    // Provided method
    fn enabled() -> bool { ... }
}

Notified when a new era becomes active.

Required Methods

fn on_era_start(era: EraIndex, validators: &[AccountId])

Called once when era becomes active, with the validators elected for it.

fn weight(validators: u32) -> Weight

Upper bound of the weight of Self::on_era_start for validators validators.

Provided Methods

fn enabled() -> bool

Whether the hook is in use. When false, staking does not keep the elected set, and at era start it only removes a copy kept while the hook was enabled, charged as one read and one write.

Expected to be constant for a given runtime version.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl<AccountId> OnEraStart<AccountId> for ()

fn enabled() -> bool

fn on_era_start(_era: EraIndex, _validators: &[AccountId])

fn weight(_validators: u32) -> Weight

Implementors