Polishing.

Add Geometry super-type only as subtypes are considered simple types already. Ensure reflective simple type AOT registration.

Original pull request: #1713
See #1711

spring-data-r2dbc/src/main/java/org/springframework/data/r2dbc/aot/R2dbcRuntimeHints.java

@@ -21,6 +21,7 @@ import org.springframework.aot.hint.MemberCategory;
 import org.springframework.aot.hint.RuntimeHints;
 import org.springframework.aot.hint.RuntimeHintsRegistrar;
 import org.springframework.aot.hint.TypeReference;
+import org.springframework.data.r2dbc.dialect.PostgresDialect;
 import org.springframework.data.r2dbc.mapping.event.AfterConvertCallback;
 import org.springframework.data.r2dbc.mapping.event.AfterSaveCallback;
 import org.springframework.data.r2dbc.mapping.event.BeforeConvertCallback;
@@ -31,6 +32,7 @@ import org.springframework.data.r2dbc.repository.support.SimpleR2dbcRepository;
  * {@link RuntimeHintsRegistrar} for R2DBC.
  *
  * @author Christoph Strobl
+ * @author Mark Paluch
  * @since 3.0
  */
 class R2dbcRuntimeHints implements RuntimeHintsRegistrar {
@@ -45,5 +47,9 @@ class R2dbcRuntimeHints implements RuntimeHintsRegistrar {
 										.of(BeforeConvertCallback.class),
 								TypeReference.of(BeforeSaveCallback.class), TypeReference.of(AfterSaveCallback.class)),
 				hint -> hint.withMembers(MemberCategory.INVOKE_DECLARED_CONSTRUCTORS, MemberCategory.INVOKE_PUBLIC_METHODS));
+
+		for (Class<?> simpleType : PostgresDialect.INSTANCE.simpleTypes()) {
+			hints.reflection().registerType(TypeReference.of(simpleType), MemberCategory.PUBLIC_CLASSES);
+		}
 	}
 }

spring-data-r2dbc/src/main/java/org/springframework/data/r2dbc/dialect/PostgresDialect.java

@@ -59,16 +59,7 @@ public class PostgresDialect extends org.springframework.data.relational.core.di
 				.forEach(s -> ifClassPresent(s, simpleTypes::add));
 
 		// support the native JTS types supported by r2dbc-postgresql
-		Stream.of("org.locationtech.jts.geom.Geometry", //
+		ifClassPresent("org.locationtech.jts.geom.Geometry", simpleTypes::add);
-				"org.locationtech.jts.geom.Point", //
-				"org.locationtech.jts.geom.MultiPoint", //
-				"org.locationtech.jts.geom.LineString", //
-				"org.locationtech.jts.geom.LinearRing", //
-				"org.locationtech.jts.geom.MultiLineString", //
-				"org.locationtech.jts.geom.Polygon", //
-				"org.locationtech.jts.geom.MultiPolygon", //
-				"org.locationtech.jts.geom.GeometryCollection") //
-				.forEach(s -> ifClassPresent(s, simpleTypes::add));
 
 		// conditional Postgres JSON support.
 		ifClassPresent("io.r2dbc.postgresql.codec.Json", simpleTypes::add);