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docs(architecture): draw JourneyItemDocumentDeleteListener event flow (#805)

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Adds the JourneyItemDocumentDeleteListener component and the
DocumentDeletingEvent edge (documentSvc -> listener) to the supporting-domains
l3 diagram. This is the first event-driven edge in the backend; the diagram
must make that in-process coupling visible per the doc-currency rule.

Addresses @markus review (blocker) on PR #806.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Marcel
2026-06-11 19:22:52 +02:00
parent 00baf0d881
commit 6230deaa96
1 changed files with 3 additions and 0 deletions
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docs/architecture/c4/l3-backend-3g-supporting.puml
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@@ -20,6 +20,7 @@ System_Boundary(backend, "API Backend (Spring Boot)") {
Component(geschSvc, "GeschichteService", "Spring Service", "Manages story lifecycle (DRAFT → PUBLISHED with timestamp). Supports two subtypes: STORY (prose) and JOURNEY (ordered JourneyItem sequence). Sanitizes HTML body with an allowlist policy.")
Component(geschQuerySvc, "GeschichteQueryService", "Spring Service", "Read-only facade over GeschichteRepository. Exposes existsById() and findById() to prevent JourneyItemService from crossing domain boundaries.")
Component(journeyItemSvc, "JourneyItemService", "Spring Service", "Manages journey item lifecycle: append (100-item cap), updateNote (three-way PATCH), delete, and reorder (DEFERRABLE position swap). Serves both STORY and JOURNEY subtypes.")
Component(journeyListener, "JourneyItemDocumentDeleteListener", "Spring @EventListener", "Consumes DocumentDeletingEvent synchronously inside the delete transaction and removes note-less journey items before ON DELETE SET NULL fires, preventing a chk_journey_item_not_empty violation. See ADR-038.")
Component(exHandler, "GlobalExceptionHandler", "Spring @RestControllerAdvice", "Converts DomainException, validation errors, and generic exceptions to ErrorResponse JSON with machine-readable ErrorCode and HTTP status.")
}
@@ -44,6 +45,8 @@ Rel(geschCtrl, journeyItemSvc, "Delegates journey item CRUD")
Rel(journeyItemSvc, geschQuerySvc, "Checks Geschichte existence")
Rel(geschQuerySvc, db, "Reads geschichten", "JDBC")
Rel(journeyItemSvc, db, "Reads / writes journey_items", "JDBC")
Rel(documentSvc, journeyListener, "DocumentDeletingEvent", "in-process event")
Rel(journeyListener, db, "Deletes note-less journey_items", "JDBC")
Rel(auditSvc, db, "Writes audit_log", "JDBC")
Rel(auditQuery, db, "Reads audit_log", "JDBC")
Rel(notifSvc, db, "Reads / writes notifications", "JDBC")