Struct PoolAlreadySet 

#[non_exhaustive]
pub struct PoolAlreadySet;

The outbox’s pool was set already: by Outbox::new or by an earlier set_pool.

Examples

use std::io;

pub fn app() -> impl App {
    let tracking = outbox! { "orders" => OrderOutbox };
    let registry = tracking.clone();
    RustStream::new(AppInfo::new("orders", "0.1.0"))
        .on_startup(async move |()| {
            let pool = PgPool::connect("postgres://localhost/orders")
                .await
                .map_err(io::Error::other)?;
            // A deferred registry takes this one pool; a second one would fail startup here.
            registry.set_pool(pool.clone()).map_err(io::Error::other)?;
            Ok::<_, io::Error>(pool)
        })
        .publish_layer(tracking.publish_layer())
        .with_broker(MemoryBroker::new(), |b| {
            b.include(place).out_reply(Publish);
        })
}

Trait Implementations

impl Debug for PoolAlreadySet

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

Formats the value using the given formatter.

impl Display for PoolAlreadySet

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for PoolAlreadySet

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.