Trait r2d2::CustomizeConnection[−][src]

[+] Show declaration

pub trait CustomizeConnection<C, E>: Debug + Send + Sync + 'static {
    fn on_acquire(&self, conn: &mut C) -> Result<(), E> { ... }
    fn on_release(&self, conn: C) { ... }
}

A trait which allows for customization of connections.

Provided Methods

`fn on_acquire(&self, conn: &mut C) -> Result<(), E>`[−]

Called with connections immediately after they are returned from ManageConnection::connect.

The default implementation simply returns Ok(()).

Errors

If this method returns an error, the connection will be discarded.

`fn on_release(&self, conn: C)`[−]

Called with connections when they are removed from the pool.

The connections may be broken (as reported by is_valid or has_broken), or have simply timed out.

The default implementation does nothing.

Implementors

impl<C, E> CustomizeConnection<C, E> for NopConnectionCustomizer
[src]