Trait Backend 

pub trait Backend: Send + 'static {
    type Value: Value;
    type Error: Debug + Clone + Send;

    // Required method
    fn batch_load<'a, I>(
        &self,
        keys: I,
    ) -> Result<Vec<Self::Value>, Self::Error>
       where I: Iterator<Item = &'a <Self::Value as Value>::Key> + 'a;
}

Trait for querier backend

Required Associated Types

type Value: Value

type Error: Debug + Clone + Send

Required Methods

fn batch_load<'a, I>(&self, keys: I) -> Result<Vec<Self::Value>, Self::Error>

where I: Iterator<Item = &'a <Self::Value as Value>::Key> + 'a,

This function provides the actual data fetching logic.

Dyn Compatibility

This trait is not dyn compatible.

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

Implementors