Adding properties:

- enforce referential integrity on delete
- enforce referential integrity on write
- auto create reference targets

src/main/resources/hapi.properties

@@ -13,6 +13,9 @@ fhir_version=R4
 # accessible from the server itself.
 server_address=http://localhost:8080/hapi-fhir-jpaserver/fhir/
 
+auto_create_placeholder_reference_targets=true
+enforce_referential_integrity_on_write=true
+enforce_referential_integrity_on_delete=true
 default_encoding=JSON
 etag_support=ENABLED
 reuse_cached_search_results_millis=-1