Trait Connection 

pub trait Connection: Executor {
    // Required methods
    fn connect(
        url: Cow<'static, str>,
    ) -> impl Future<Output = Result<<Self::Driver as Driver>::Connection>>;
    fn begin(&mut self) -> impl Future<Output = Result<impl Transaction<'_>>>;
}

A live database handle capable of executing queries and spawning transactions.

This trait extends Executor adding functionality to acquire a connection and to begin transactional scopes.

Drivers implement concrete Connection types to expose backend-specific behavior (timeouts, pooling strategies, prepared statement caching, etc.).

Lifecycle

• connect creates (or fetches) an underlying connection. It may eagerly establish network I/O for validation; always await it.
• begin starts a transaction returning an object implementing Transaction. Commit / rollback MUST be awaited to guarantee resource release.

Required Methods

fn connect( url: Cow<'static, str>, ) -> impl Future<Output = Result<<Self::Driver as Driver>::Connection>>

Create a connection (or pool) with at least one underlying session established to the given URL.

fn begin(&mut self) -> impl Future<Output = Result<impl Transaction<'_>>>

Begin a transaction scope tied to the current connection.

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