Trait MemoryLoader 

pub trait MemoryLoader {
    type Item;
    type Query;

    // Required methods
    fn load_items(
        &self,
        range: Range<usize>,
        query: &Self::Query,
    ) -> Vec<Self::Item>;
    fn item_count(&self, query: &Self::Query) -> usize;
}

Loader trait for loading items on-demand from an in-memory data source.

In this case we don’t need async methods and everything is simple and synchronous.

Required Associated Types

type Item

The type of items that will be loaded.

type Query

The type of the query data that will be used to load items.

Can be used to filter or sort the items for example.

Required Methods

fn load_items( &self, range: Range<usize>, query: &Self::Query, ) -> Vec<Self::Item>

Loads items from the given range, respecting the query.

fn item_count(&self, query: &Self::Query) -> usize

The total number of items of this data source with respect to the query.

Implementors