Trait DatabaseProviderFactory 

pub trait DatabaseProviderFactory: Send + Sync {
    type DB: Database;
    type Provider: DBProvider<Tx = <Self::DB as Database>::TX>;
    type ProviderRW: DBProvider<Tx = <Self::DB as Database>::TXMut>;

    // Required methods
    fn database_provider_ro(&self) -> Result<Self::Provider, ProviderError>;
    fn database_provider_rw(&self) -> Result<Self::ProviderRW, ProviderError>;
}

Database provider factory.

Required Associated Types

type DB: Database

Database this factory produces providers for.

type Provider: DBProvider<Tx = <Self::DB as Database>::TX>

Provider type returned by the factory.

type ProviderRW: DBProvider<Tx = <Self::DB as Database>::TXMut>

Read-write provider type returned by the factory.

Required Methods

fn database_provider_ro(&self) -> Result<Self::Provider, ProviderError>

Create new read-only database provider.

fn database_provider_rw(&self) -> Result<Self::ProviderRW, ProviderError>

Create new read-write database provider.

Implementations on Foreign Types

impl<'a, T> DatabaseProviderFactory for &'a T

where T: 'a + DatabaseProviderFactory + ?Sized, &'a T: Send + Sync,

type DB = <T as DatabaseProviderFactory>::DB

type Provider = <T as DatabaseProviderFactory>::Provider

type ProviderRW = <T as DatabaseProviderFactory>::ProviderRW

fn database_provider_ro( &self, ) -> Result<<&'a T as DatabaseProviderFactory>::Provider, ProviderError>

fn database_provider_rw( &self, ) -> Result<<&'a T as DatabaseProviderFactory>::ProviderRW, ProviderError>

impl<T> DatabaseProviderFactory for Arc<T>

where T: DatabaseProviderFactory + ?Sized, Arc<T>: Send + Sync,

type DB = <T as DatabaseProviderFactory>::DB

type Provider = <T as DatabaseProviderFactory>::Provider

type ProviderRW = <T as DatabaseProviderFactory>::ProviderRW

fn database_provider_ro( &self, ) -> Result<<Arc<T> as DatabaseProviderFactory>::Provider, ProviderError>

fn database_provider_rw( &self, ) -> Result<<Arc<T> as DatabaseProviderFactory>::ProviderRW, ProviderError>

Implementors

impl<ChainSpec, N> DatabaseProviderFactory for NoopProvider<ChainSpec, N>

where ChainSpec: Send + Sync, N: NodePrimitives,

Available on crate feature db-api only.

type DB = DatabaseMock

type Provider = NoopProvider<ChainSpec, N>

type ProviderRW = NoopProvider<ChainSpec, N>

impl<N> DatabaseProviderFactory for BlockchainProvider<N>

where N: ProviderNodeTypes,

type DB = <N as NodeTypesWithDB>::DB

type Provider = <ProviderFactory<N> as DatabaseProviderFactory>::Provider

type ProviderRW = <ProviderFactory<N> as DatabaseProviderFactory>::ProviderRW

impl<N> DatabaseProviderFactory for ProviderFactory<N>

where N: ProviderNodeTypes,

type DB = <N as NodeTypesWithDB>::DB

type Provider = DatabaseProvider<<<N as NodeTypesWithDB>::DB as Database>::TX, N>

type ProviderRW = DatabaseProvider<<<N as NodeTypesWithDB>::DB as Database>::TXMut, N>

impl<T, ChainSpec> DatabaseProviderFactory for MockEthProvider<T, ChainSpec>

where T: NodePrimitives, ChainSpec: EthChainSpec + Clone + 'static,

type DB = DatabaseMock

type Provider = MockEthProvider<T, ChainSpec>

type ProviderRW = MockEthProvider<T, ChainSpec>