Enum Disposition 

pub enum Disposition {
    Continue,
    Delay(Duration),
    Drop,
    Reject(String),
    Retry(Duration),
}

The decision returned by an interceptor after inspecting a message.

Controls whether the message proceeds through the pipeline, is delayed, dropped, rejected, or bounced back with a retry hint.

Variants

Continue

Continue to the next interceptor / deliver the message.

Delay(Duration)

Delay the message by the specified duration before proceeding. Multiple delays are cumulative.

Drop

Drop the message silently.

Reject(String)

Reject the message with a reason.

Retry(Duration)

Tell the caller to retry sending the message after the specified duration. Unlike Delay (which holds the message in the pipeline), Retry returns immediately to the caller with Err(RuntimeError::RetryAfter { .. }), letting the caller decide whether and when to resend.

Inbound: The message is NOT delivered. The caller receives the retry hint and can resend after the suggested delay.

Outbound: The message is NOT sent. Same caller-visible behavior.

Use cases: circuit breakers, load shedding, backpressure signaling.

Trait Implementations

impl Debug for Disposition

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

Formats the value using the given formatter.