Trait diesel::r2d2::event::HandleEvent

[+] Show declaration

pub trait HandleEvent: Send + Sync + Debug {
    fn handle_acquire(&self, event: AcquireEvent) { ... }
    fn handle_release(&self, event: ReleaseEvent) { ... }
    fn handle_checkout(&self, event: CheckoutEvent) { ... }
    fn handle_timeout(&self, event: TimeoutEvent) { ... }
    fn handle_checkin(&self, event: CheckinEvent) { ... }
}

[−] Expand description

A trait which is provided with information about events in a connection pool.

Provided methods

fn handle_acquire(&self, event: AcquireEvent)[−]

Called when a new connection is acquired.

The default implementation does nothing.

fn handle_release(&self, event: ReleaseEvent)[−]

Called when a connection is released.

The default implementation does nothing.

fn handle_checkout(&self, event: CheckoutEvent)[−]

Called when a connection is checked out from the pool.

The default implementation does nothing.

fn handle_timeout(&self, event: TimeoutEvent)[−]

Called when a checkout attempt times out.

The default implementation does nothing.

fn handle_checkin(&self, event: CheckinEvent)[−]

Called when a connection is checked back into the pool.

Implementors

impl HandleEvent for NopEventHandler