Trait Queryable 

pub trait Queryable<T: Entity>: Send + Sync {
    type Filter: Send + Sync;

    // Required methods
    fn find_by(
        &self,
        filter: Self::Filter,
    ) -> BoxFuture<'_, Result<Vec<T>, RepoError>>;
    fn find_page_by(
        &self,
        filter: Self::Filter,
        request: PageRequest,
    ) -> BoxFuture<'_, Result<Page<T>, RepoError>>;
}

Trait for repositories that support filtered and sorted queries.

The Filter associated type allows each implementation to define its own query DSL or filter struct without leaking persistence details into the domain layer.

Note: Queryable is not object-safe because it has an associated type (Filter). Use a concrete type or a trait alias when dynamic dispatch is needed.

Required Associated Types

type Filter: Send + Sync

A type describing the filter/sort criteria for queries.

Required Methods

fn find_by( &self, filter: Self::Filter, ) -> BoxFuture<'_, Result<Vec<T>, RepoError>>

Find all entities matching the given filter.

fn find_page_by( &self, filter: Self::Filter, request: PageRequest, ) -> BoxFuture<'_, Result<Page<T>, RepoError>>

Return a page of entities matching the given filter.

The total count and page items both reflect only rows that satisfy filter. Use Paginatable::find_page when paginating the full table without a filter.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors