Trait client_side_validation::SealResolver

pub trait SealResolver<Seal> {
    type Error: SealIssue<Seal = Seal>;

    // Required method
    fn resolve_trust(&mut self, seal: &Seal) -> Result<(), Self::Error>;
}

Seal resolver validates seal to have closed status, or reports SealResolver::Error otherwise, if the seal does not have a determined status or there was a error accessing seal commitment medium. The reported error does not necessary implies that the seal is not closed and the final decision about seal status must be solved at upper protocol levels or by a informed user action.

Seal resolution MUST always produce a singular success type (defined by ()) or fail with a well-defined type of SealResolver::Error.

Seal resolver may have an internal state (represented by self reference) and it does not require to produce a deterministic result for the same given data piece and context: the seal resolver may depend on previous operation history and depend on type and other external parameters.

Required Associated Types

type Error: SealIssue<Seal = Seal>

Error type returned by SealResolver::resolve_trust, which should cover both errors in accessing single-use-seal medium (like network connectivity) or evidences of the facts the seal was not (yet) closed.

Required Methods

fn resolve_trust(&mut self, seal: &Seal) -> Result<(), Self::Error>

Resolves trust to the provided single-use-seal.

The method mutates resolver such that it can be able to store cached data from a single-use-seal medium.

Method must fail on both errors in accessing single-use-seal medium (like network connectivity) or if the seal is not (yet) closed.

Implementors