feat: added config option for upliftedRefchains support

src/main/java/ca/uhn/fhir/jpa/starter/AppProperties.java

@@ -103,6 +103,7 @@ public class AppProperties {
   private final List<String> custom_interceptor_classes = new ArrayList<>();
 
 	private final List<String> custom_provider_classes = new ArrayList<>();
+	private Boolean upliftedRefchains_enabled = false;
 
 
 	public List<String> getCustomInterceptorClasses() {
@@ -643,6 +644,14 @@ public Cors getCors() {
 		this.language_search_parameter_enabled = language_search_parameter_enabled;
 	}
 
+	public boolean getUpliftedRefchains_enabled() {
+		return upliftedRefchains_enabled;
+	}
+
+	public void setUpliftedRefchains_enabled(boolean upliftedRefchains_enabled) {
+		this.upliftedRefchains_enabled = upliftedRefchains_enabled;
+	}
+
 	public static class Cors {
     private Boolean allow_Credentials = true;
     private List<String> allowed_origin = List.of("*");

src/main/java/ca/uhn/fhir/jpa/starter/common/FhirServerConfigCommon.java

@@ -149,6 +149,7 @@ public class FhirServerConfigCommon {
 		jpaStorageSettings.setDeleteExpungeEnabled(appProperties.getDelete_expunge_enabled());
 		jpaStorageSettings.setExpungeEnabled(appProperties.getExpunge_enabled());
 		jpaStorageSettings.setLanguageSearchParameterEnabled(appProperties.getLanguage_search_parameter_enabled());
+		jpaStorageSettings.setIndexOnUpliftedRefchains(appProperties.getUpliftedRefchains_enabled());
 
 
 		Integer maxFetchSize = appProperties.getMax_page_size();

src/main/resources/application.yaml

@@ -190,6 +190,7 @@ hapi:
     #    enable_index_missing_fields: false
     #    enable_index_of_type: true
     #    enable_index_contained_resource: false
+    #    upliftedRefchains_enabled: true
     #    resource_dbhistory_enabled: false
     ###  !!Extended Lucene/Elasticsearch Indexing is still a experimental feature, expect some features (e.g. _total=accurate) to not work as expected!!
     ###  more information here: https://hapifhir.io/hapi-fhir/docs/server_jpa/elastic.html