Struct substrate_test_runtime_client::sc_client_db::BlockchainDb

pub struct BlockchainDb<Block> where
    Block: Block,  { /* fields omitted */ }

Block database

Trait Implementations

impl<Block> Backend<Block> for BlockchainDb<Block> where
    Block: Block, 

pub fn body(
    &self,
    id: BlockId<Block>
) -> Result<Option<Vec<<Block as Block>::Extrinsic, Global>>, Error>

Get block body. Returns None if block is not found.

pub fn justifications(
    &self,
    id: BlockId<Block>
) -> Result<Option<Justifications>, Error>

Get block justifications. Returns None if no justification exists.

pub fn last_finalized(&self) -> Result<<Block as Block>::Hash, Error>

Get last finalized block hash.

pub fn cache(&self) -> Option<Arc<dyn Cache<Block> + 'static>>

Returns data cache reference, if it is enabled on this backend.

pub fn leaves(&self) -> Result<Vec<<Block as Block>::Hash, Global>, Error>

Returns hashes of all blocks that are leaves of the block tree. in other words, that have no children, are chain heads. Results must be ordered best (longest, highest) chain first.

pub fn children(
    &self,
    parent_hash: <Block as Block>::Hash
) -> Result<Vec<<Block as Block>::Hash, Global>, Error>

Return hashes of all blocks that are children of the block with parent_hash.

pub fn indexed_transaction(
    &self,
    hash: &<Block as Block>::Hash
) -> Result<Option<Vec<u8, Global>>, Error>

Get single indexed transaction by content hash. Note that this will only fetch transactions that are indexed by the runtime with storage_index_transaction.

pub fn has_indexed_transaction(
    &self,
    hash: &<Block as Block>::Hash
) -> Result<bool, Error>

Check if indexed transaction exists.

pub fn block_indexed_body(
    &self,
    id: BlockId<Block>
) -> Result<Option<Vec<Vec<u8, Global>, Global>>, Error>

fn best_containing(
    &self,
    target_hash: <Block as Block>::Hash,
    maybe_max_number: Option<<<Block as Block>::Header as Header>::Number>,
    import_lock: &RwLock<RawRwLock, ()>
) -> Result<Option<<Block as Block>::Hash>, Error>

Get the most recent block hash of the best (longest) chains that contain block with the given target_hash.

impl<Block> HeaderBackend<Block> for BlockchainDb<Block> where
    Block: Block, 

pub fn header(
    &self,
    id: BlockId<Block>
) -> Result<Option<<Block as Block>::Header>, Error>

Get block header. Returns None if block is not found.

pub fn info(&self) -> Info<Block>

Get blockchain info.

pub fn status(&self, id: BlockId<Block>) -> Result<BlockStatus, Error>

Get block status.

pub fn number(
    &self,
    hash: <Block as Block>::Hash
) -> Result<Option<<<Block as Block>::Header as Header>::Number>, Error>

Get block number by hash. Returns None if the header is not in the chain.

pub fn hash(
    &self,
    number: <<Block as Block>::Header as Header>::Number
) -> Result<Option<<Block as Block>::Hash>, Error>

Get block hash by number. Returns None if the header is not in the chain.

fn block_hash_from_id(
    &self,
    id: &BlockId<Block>
) -> Result<Option<<Block as Block>::Hash>, Error>

Convert an arbitrary block ID into a block hash.

fn block_number_from_id(
    &self,
    id: &BlockId<Block>
) -> Result<Option<<<Block as Block>::Header as Header>::Number>, Error>

Convert an arbitrary block ID into a block hash.

fn expect_header(
    &self,
    id: BlockId<Block>
) -> Result<<Block as Block>::Header, Error>

Get block header. Returns UnknownBlock error if block is not found.

fn expect_block_number_from_id(
    &self,
    id: &BlockId<Block>
) -> Result<<<Block as Block>::Header as Header>::Number, Error>

Convert an arbitrary block ID into a block number. Returns UnknownBlock error if block is not found.

fn expect_block_hash_from_id(
    &self,
    id: &BlockId<Block>
) -> Result<<Block as Block>::Hash, Error>

Convert an arbitrary block ID into a block hash. Returns UnknownBlock error if block is not found.

impl<Block> HeaderMetadata<Block> for BlockchainDb<Block> where
    Block: Block, 

type Error = Error

Error used in case the header metadata is not found.

pub fn header_metadata(
    &self,
    hash: <Block as Block>::Hash
) -> Result<CachedHeaderMetadata<Block>, <BlockchainDb<Block> as HeaderMetadata<Block>>::Error>

pub fn insert_header_metadata(
    &self,
    hash: <Block as Block>::Hash,
    metadata: CachedHeaderMetadata<Block>
)

pub fn remove_header_metadata(&self, hash: <Block as Block>::Hash)

impl<Block> ProvideCache<Block> for BlockchainDb<Block> where
    Block: Block, 

pub fn cache(&self) -> Option<Arc<dyn Cache<Block> + 'static>>

Returns data cache reference, if it is enabled on this backend.

impl<Block> ProvideChtRoots<Block> for BlockchainDb<Block> where
    Block: Block, 

pub fn header_cht_root(
    &self,
    cht_size: <<Block as Block>::Header as Header>::Number,
    block: <<Block as Block>::Header as Header>::Number
) -> Result<Option<<Block as Block>::Hash>, Error>

Get headers CHT root for given block. Returns None if the block is not a part of any CHT.

pub fn changes_trie_cht_root(
    &self,
    cht_size: <<Block as Block>::Header as Header>::Number,
    block: <<Block as Block>::Header as Header>::Number
) -> Result<Option<<Block as Block>::Hash>, Error>

Get changes trie CHT root for given block. Returns None if the block is not a part of any CHT.