Struct bb8::Pool

pub struct Pool<M> where
    M: ManageConnection,  { /* fields omitted */ }

A generic connection pool.

Methods

impl<M: ManageConnection> Pool<M>

pub fn builder() -> Builder<M>

Returns a Builder instance to configure a new pool.

pub fn state(&self) -> State

Returns information about the current state of the pool.

pub async fn run<'a, '_, T, E, U, F>(&'_ self, f: F) -> Result<T, RunError<E>> where
    F: FnOnce(M::Connection) -> U + Send + 'a,
    U: Future<Output = Result<(T, M::Connection), (E, M::Connection)>> + Send + 'a,
    E: From<M::Error> + Send + 'a,
    T: Send + 'a, 

Run a closure with a Connection.

pub async fn get<'_, '_>(
    &'_ self
) -> Result<PooledConnection<'_, M>, RunError<M::Error>>

Retrieves a connection from the pool.

pub async fn dedicated_connection<'_>(
    &'_ self
) -> Result<M::Connection, M::Error>

Get a new dedicated connection that will not be managed by the pool. An application may want a persistent connection (e.g. to do a postgres LISTEN) that will not be closed or repurposed by the pool.

This method allows reusing the manager's configuration but otherwise bypassing the pool

Trait Implementations

impl<M> Clone for Pool<M> where
    M: ManageConnection, 

fn clone(&self) -> Self

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<M> Debug for Pool<M> where
    M: ManageConnection, 

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.