Module schema_migration 

Typed payloads for schema migration boundary events.

These payloads are data contracts only. Emitting them into the ledger is owned by the Lane S2 migration command and must not happen implicitly.

Structs

SchemaMigrationV1ToV2Payload

Payload for the schema_migration.v1_to_v2 boundary event required by ADR 0018.

Enums

SchemaMigrationEventError

Boundary event construction failures.

SchemaMigrationPayloadError

Payload validation failures for schema migration boundary events.

Constants

SCHEMA_MIGRATION_V1_TO_V2_EVENT_KIND

Payload discriminator for the v1 -> v2 migration boundary event.

SCHEMA_MIGRATION_V1_TO_V2_ID

Stable migration id for the v1 -> v2 cutover recipe.

SCHEMA_MIGRATION_V1_TO_V2_TARGET

Target schema version for the v1 -> v2 cutover.

Functions

schema_migration_v1_to_v2_event

Build the typed schema_migration.v1_to_v2 boundary event without appending it to any ledger.