batch_loader

Trait Backend

Source 
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;
}
Expand description

Trait for querier backend

Required Associated Types§

Source

type Value: Value

Source

type Error: Debug + Clone + Send

Required Methods§

Source

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", so this trait is not object safe.

Implementors§