Trait storage_interface::proof_fetcher::ProofFetcher

pub trait ProofFetcher: Sync + Send {
    fn fetch_state_value_and_proof(
        &self,
        state_key: &StateKey,
        version: Version
    ) -> Result<(Option<StateValue>, Option<SparseMerkleProof>)>;
    fn get_proof_cache(&self) -> HashMap<HashValue, SparseMerkleProof>;
}

Defines the trait for fetching proof from the DB

Required Methods

fn fetch_state_value_and_proof(
    &self,
    state_key: &StateKey,
    version: Version
) -> Result<(Option<StateValue>, Option<SparseMerkleProof>)>

API to fetch the state value along with proof

fn get_proof_cache(&self) -> HashMap<HashValue, SparseMerkleProof>

API to return all the proofs fetched by the proof fetcher so far.

Implementors

impl ProofFetcher for AsyncProofFetcher

impl ProofFetcher for NoProofFetcher

impl<'a> ProofFetcher for SyncProofFetcher<'a>