Trait PayloadMigrator 

pub trait PayloadMigrator: Send + Sync {
    // Required method
    fn migrate(
        &self,
        from: SchemaVersion,
        payload: &[u8],
    ) -> Result<Vec<u8>, ExecutionError>;
}

Pure adapter that upgrades one supported historical payload directly to the handler’s current schema. Database migrations remain separate.

Required Methods

fn migrate( &self, from: SchemaVersion, payload: &[u8], ) -> Result<Vec<u8>, ExecutionError>

Returns current-schema Postcard bytes for a historical payload.

Errors

Returns ExecutionError when the historical payload is malformed or cannot be upgraded.

Dyn Compatibility

This trait is dyn compatible.

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

Implementors