Trait Executable

pub trait Executable {
    type Output;

    // Required method
    fn exec_with<'life0, 'async_trait>(
        &'life0 self,
        client: impl 'async_trait + Executor + Send + Sync,
    ) -> Pin<Box<dyn Future<Output = Result<Self::Output, Error>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;

    // Provided method
    fn exec<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Self::Output, Error>> + Send + 'async_trait>>
       where Self: Sync + 'async_trait,
             'life0: 'async_trait { ... }
}

Trait used to mark exectuable queries. It is used to make use of generics for executing them.

Required Associated Types

type Output

What output should this query result in?

Required Methods

fn exec_with<'life0, 'async_trait>( &'life0 self, client: impl 'async_trait + Executor + Send + Sync, ) -> Pin<Box<dyn Future<Output = Result<Self::Output, Error>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Execute the query given any viable Executor

Provided Methods

fn exec<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Self::Output, Error>> + Send + 'async_trait>>

where Self: Sync + 'async_trait, 'life0: 'async_trait,

The actual function for executing a query.

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

impl<'a> Executable for Query<'a, u64>

type Output = u64

impl<'a, T> Executable for Query<'a, Option<T>>

where T: TryFrom<Row, Error = Error> + Send + Sync,

type Output = Option<T>

impl<'a, T> Executable for Query<'a, Vec<T>>

where T: TryFrom<Row, Error = Error> + Send + Sync,

type Output = Vec<T>