Trait DatabaseProviderROFactory 

pub trait DatabaseProviderROFactory {
    type Provider;

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

Available on crate feature provider only.

A trait which can be used to describe any factory-like type which returns a read-only provider.

Required Associated Types

type Provider

Provider type returned by this factory.

This type is intentionally left unconstrained; constraints can be added as-needed when this is used.

Required Methods

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

Creates and returns a Provider.

Dyn Compatibility

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl<F, N> DatabaseProviderROFactory for OverlayStateProviderFactory<F, N>

where N: NodePrimitives, F: DatabaseProviderFactory, <F as DatabaseProviderFactory>::Provider: StageCheckpointReader + PruneCheckpointReader + BlockNumReader + ChangeSetReader + StorageChangeSetReader + StorageSettingsCache,

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

Create a read-only OverlayStateProvider.

type Provider = OverlayStateProvider<<F as DatabaseProviderFactory>::Provider>

Implementors

impl<T> DatabaseProviderROFactory for T

where T: DatabaseProviderFactory,

type Provider = <T as DatabaseProviderFactory>::Provider