Module domain 

Business domain classification for kernel messages.

This module provides domain enumeration and traits for categorizing messages by their business function. Domains enable:

• Type ID range allocation per domain
• Domain-specific routing and observability
• Cross-domain access control

Example

use ringkernel_core::domain::{Domain, DomainMessage};

// Messages with domain derive get auto-assigned type IDs
#[derive(RingMessage)]
#[ring_message(type_id = 1, domain = "OrderMatching")]
pub struct SubmitOrder {
    #[message(id)]
    id: MessageId,
    symbol: String,
}
// Final type ID = 500 (OrderMatching base) + 1 = 501

Structs

DomainParseError

Error returned when parsing an invalid domain string.

Enums

Domain

Business domain classification for kernel messages.

Traits

DomainMessage

Trait for messages that belong to a specific business domain.