Trait noble_session::SessionManager

pub trait SessionManager<ValidatorId> {
    fn new_session(new_index: SessionIndex) -> Option<Vec<ValidatorId>>;
    fn end_session(end_index: SessionIndex);
    fn start_session(start_index: SessionIndex);
}

A trait for managing creation of new validator set.

Required methods

fn new_session(new_index: SessionIndex) -> Option<Vec<ValidatorId>>

Plan a new session, and optionally provide the new validator set.

Even if the validator-set is the same as before, if any underlying economic conditions have changed (i.e. stake-weights), the new validator set must be returned. This is necessary for consensus engines making use of the session module to issue a validator-set change so misbehavior can be provably associated with the new economic conditions as opposed to the old. The returned validator set, if any, will not be applied until new_index. new_index is strictly greater than from previous call.

The first session start at index 0.

new_session(session) is guaranteed to be called before end_session(session-1). In other words, a new session must always be planned before an ongoing one can be finished.

fn end_session(end_index: SessionIndex)

End the session.

Because the session noble can queue validator set the ending session can be lower than the last new session index.

fn start_session(start_index: SessionIndex)

Start the session.

The session start to be used for validation.

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Implementations on Foreign Types

impl<A> SessionManager<A> for ()

fn new_session(_: SessionIndex) -> Option<Vec<A>>

fn start_session(_: SessionIndex)

fn end_session(_: SessionIndex)

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Implementors

impl<T: Config, I> SessionManager<<T as Config>::ValidatorId> for NoteHistoricalRoot<T, I> where
    I: SessionManager<T::ValidatorId, T::FullIdentification>, 

fn new_session(new_index: SessionIndex) -> Option<Vec<T::ValidatorId>>

fn start_session(start_index: SessionIndex)

fn end_session(end_index: SessionIndex)

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