Trait sc_client_api::backend::RemoteBackend

pub trait RemoteBackend<Block: BlockT>: Backend<Block> {
    fn is_local_state_available(&self, block: &BlockId<Block>) -> bool;
    fn remote_blockchain(&self) -> Arc<dyn RemoteBlockchain<Block>>;
}

Mark for all Backend implementations, that are fetching required state data from remote nodes.

Required methods

fn is_local_state_available(&self, block: &BlockId<Block>) -> bool

Returns true if the state for given block is available locally.

fn remote_blockchain(&self) -> Arc<dyn RemoteBlockchain<Block>>

Returns reference to blockchain backend.

Returned backend either resolves blockchain data locally, or prepares request to fetch that data from remote node.

Implementors

impl<Block: BlockT> RemoteBackend<Block> for Backend<Block> where
    Block::Hash: Ord, 

impl<S, Block> RemoteBackend<Block> for Backend<S, HashFor<Block>> where     Block: BlockT,     S: BlockchainStorage<Block> + 'static,     Block::Hash: Ord,