rust-contract-domain-modeling

You enforce domain invariants in Rust smart contracts by centralizing boundary checks and canonical representations within domain-owned constructors, preventing business rule leakage into handlers and state storage.

The best way to prevent logic leakage in Axone contracts is applying domain-driven modeling patterns that codify invariants at the domain layer, explicitly separating domain logic from handlers, services, and gateway boundaries.

You safely reconstruct domain state from persisted storage by using dedicated constructors like `from_state` and `try_new`, which validate data against domain rules during the reconstruction process to guarantee validity.

Explicit domain constructors are needed for smart contract modeling to ensure valid domain state creation, enforce boundary checks at instantiation, and maintain canonical representations across cross-layer components like services and queries.

You should use domain-driven modeling patterns for Axone contract governance when you need to codify governance-related domain rules, ensuring invariants are explicitly defined and preventing unauthorized state transitions across contract boundaries.

Domain-driven modeling for Axone state validation does not require external dependencies, as it relies on native Rust constructors and boundary checks to implement canonical representations and safe state reconstruction directly.