Trait PubSubMetadata

pub trait PubSubMetadata: Metadata {
    // Required method
    fn session(&self) -> Option<Arc<Session>>;
}

Metadata extension for pub-sub method handling.

NOTE storing PubSubMetadata (or rather storing Arc<Session>) in any other place outside of the handler will prevent unsubscribe methods to be called in case the Session is dropped (i.e. transport connection is closed).

Required Methods

fn session(&self) -> Option<Arc<Session>>

Returns session object associated with given request/client. None indicates that sessions are not supported on the used transport.

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.

Implementations on Foreign Types

impl PubSubMetadata for Arc<Session>

fn session(&self) -> Option<Arc<Session>>

impl<T: PubSubMetadata> PubSubMetadata for Option<T>

fn session(&self) -> Option<Arc<Session>>

Implementors