Struct sc_client_api::execution_extensions::ExecutionExtensions

pub struct ExecutionExtensions<Block: BlockT> { /* private fields */ }

A producer of execution extensions for offchain calls.

This crate aggregates extensions available for the offchain calls and is responsible for producing a correct Extensions object. for each call, based on required Capabilities.

Implementations

impl<Block: BlockT> ExecutionExtensions<Block>

pub fn new( strategies: ExecutionStrategies, keystore: Option<KeystorePtr>, offchain_db: Option<Box<dyn DbExternalitiesFactory>>, read_runtime_version: Arc<dyn ReadRuntimeVersion> ) -> Self

Create new ExecutionExtensions given a keystore and ExecutionStrategies.

pub fn strategies(&self) -> &ExecutionStrategies

Get a reference to the execution strategies.

pub fn set_extensions_factory( &self, maker: impl ExtensionsFactory<Block> + 'static )

Set the new extensions_factory

pub fn register_transaction_pool_factory( &self, factory: OffchainTransactionPoolFactory<Block> )

Register transaction pool extension.

pub fn register_statement_store(&self, store: Arc<dyn StatementStore>)

Register statement store extension.

pub fn extensions( &self, block_hash: Block::Hash, block_number: NumberFor<Block>, context: ExecutionContext ) -> Extensions

Based on the execution context and capabilities it produces the extensions object to support desired set of APIs.

pub fn manager_and_extensions<E: Debug>( &self, block_hash: Block::Hash, block_number: NumberFor<Block>, context: ExecutionContext ) -> (ExecutionManager<DefaultHandler<E>>, Extensions)

Create ExecutionManager and Extensions for given offchain call.

Based on the execution context and capabilities it produces the right manager and extensions object to support desired set of APIs.