Trait Message 

pub trait Message {
    type UserMessage;
    type ControlMessage;

    // Required methods
    fn classify(self) -> Classification<Self::UserMessage, Self::ControlMessage>;
    fn is_error(user_message: &Self::UserMessage) -> bool;
}

A trait allowing our stream and subscription infrastructure to work with messages.

Required Associated Types

type UserMessage

A message that is relevant to the user.

type ControlMessage

An internally used control message.

Required Methods

fn classify(self) -> Classification<Self::UserMessage, Self::ControlMessage>

Classify a message as a user-relevant message or a control message.

fn is_error(user_message: &Self::UserMessage) -> bool

Check whether a user message is considered an error. Erroneous messages cause any ongoing Subscription::send or Subscription::read requests to result in an error.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors