[−][src]Trait pallet_staking::SessionInterface

pub trait SessionInterface<AccountId>: Trait {
    fn disable_validator(validator: &AccountId) -> Result<bool, ()>;

    fn validators() -> Vec<AccountId>;

    fn prune_historical_up_to(up_to: SessionIndex);
}

Means for interacting with a specialized version of the session trait.

This is needed because Staking sets the ValidatorIdOf of the pallet_session::Trait

Required methods

fn disable_validator(validator: &AccountId) -> Result<bool, ()>

Disable a given validator by stash ID.

Returns true if new era should be forced at the end of this session. This allows preventing a situation where there is too many validators disabled and block production stalls.

fn validators() -> Vec<AccountId>

Get the validators from session.

fn prune_historical_up_to(up_to: SessionIndex)

Prune historical session tries up to but not including the given index.

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Implementors

impl<T: Trait> SessionInterface<<T as Trait>::AccountId> for T where
    T: Trait<ValidatorId = <T as Trait>::AccountId>,
    T: Trait<FullIdentification = Exposure<<T as Trait>::AccountId, BalanceOf<T>>, FullIdentificationOf = ExposureOf<T>>,
    T::SessionHandler: SessionHandler<<T as Trait>::AccountId>,
    T::SessionManager: SessionManager<<T as Trait>::AccountId>,
    T::ValidatorIdOf: Convert<<T as Trait>::AccountId, Option<<T as Trait>::AccountId>>, [src]

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