#30 - Polishing.

Minor formatting. Add suggestions.

Update src/test/java/org/springframework/data/r2dbc/dialect/PostgresDialectUnitTests.java

Co-Authored-By: mp911de <mpaluch@paluch.biz>

Original pull request: #31.

src/main/java/org/springframework/data/r2dbc/config/AbstractR2dbcConfiguration.java

@@ -118,7 +118,7 @@ public abstract class AbstractR2dbcConfiguration {
 	}
 
 	/**
-	 * Creates a {@link ReactiveDataAccessStrategy} using the configured {@link #r2dbcMappingContext(Optional)
+	 * Creates a {@link ReactiveDataAccessStrategy} using the configured {@link #r2dbcMappingContext(Optional, R2dbcCustomConversions)}
 	 * RelationalMappingContext}.
 	 *
 	 * @param mappingContext the configured {@link RelationalMappingContext}.

src/main/java/org/springframework/data/r2dbc/function/DefaultReactiveDataAccessStrategy.java

@@ -261,11 +261,13 @@ public class DefaultReactiveDataAccessStrategy implements ReactiveDataAccessStra
 			}
 
 			if (!dialect.supportsArrayColumns()) {
+
 				throw new InvalidDataAccessResourceUsageException(
 						"Dialect " + dialect.getClass().getName() + " does not support array columns");
 			}
 
 			if (!property.isArray()) {
+
 				Object zeroLengthArray = Array.newInstance(property.getActualType(), 0);
 				return relationalConverter.getConversionService().convert(value, zeroLengthArray.getClass());
 			}

src/test/java/org/springframework/data/r2dbc/dialect/PostgresDialectUnitTests.java

@@ -42,5 +42,21 @@ public class PostgresDialectUnitTests {
 		SimpleTypeHolder holder = PostgresDialect.INSTANCE.getSimpleTypeHolder();
 
 		assertThat(holder.isSimpleType(String[].class)).isTrue();
+
+		@Test // gh-30
+		public void shouldConsiderIntArrayTypeAsSimple() {
+
+			SimpleTypeHolder holder = PostgresDialect.INSTANCE.getSimpleTypeHolder();
+
+			assertThat(holder.isSimpleType(int[].class)).isTrue();
+		}
+
+		@Test // gh-30
+		public void shouldConsiderIntegerArrayTypeAsSimple() {
+
+			SimpleTypeHolder holder = PostgresDialect.INSTANCE.getSimpleTypeHolder();
+
+			assertThat(holder.isSimpleType(Integer[].class)).isTrue();
+		}
 	}
 }

src/test/java/org/springframework/data/r2dbc/function/DefaultReactiveDataAccessStrategyUnitTests.java

@@ -112,6 +112,7 @@ public class DefaultReactiveDataAccessStrategyUnitTests {
 				.getColumnsToUpdate(new WithCollectionTypes(new String[] { "one", "two" }, null));
 
 		Object stringArray = columnsToUpdate.get("string_array").getValue();
+
 		assertThat(stringArray).isInstanceOf(String[].class);
 		assertThat((String[]) stringArray).hasSize(2).contains("one", "two");
 	}
@@ -123,6 +124,7 @@ public class DefaultReactiveDataAccessStrategyUnitTests {
 				.getColumnsToUpdate(new WithCollectionTypes(null, Arrays.asList("one", "two")));
 
 		Object stringArray = columnsToUpdate.get("string_collection").getValue();
+
 		assertThat(stringArray).isInstanceOf(String[].class);
 		assertThat((String[]) stringArray).hasSize(2).contains("one", "two");
 	}
@@ -134,6 +136,7 @@ public class DefaultReactiveDataAccessStrategyUnitTests {
 		List<String> stringCollection;
 
 		WithCollectionTypes(String[] stringArray, List<String> stringCollection) {
+
 			this.stringArray = stringArray;
 			this.stringCollection = stringCollection;
 		}

src/test/java/org/springframework/data/r2dbc/function/convert/EntityRowMapperUnitTests.java

@@ -69,6 +69,35 @@ public class EntityRowMapperUnitTests {
 		assertThat(result.ids).contains("foo", "bar");
 	}
 
+	@Test // gh-30
+	public void shouldConvertArrayToSet() {
+
+		EntityRowMapper<EntityWithCollection> mapper = getRowMapper(EntityWithCollection.class);
+		when(rowMock.get("integerSet")).thenReturn((new int[] { 3, 14 }));
+
+		EntityWithCollection result = mapper.apply(rowMock, metadata);
+		assertThat(result.integerSet).contains(3, 14);
+	}
+
+	@Test // gh-30
+	public void shouldConvertArrayMembers() {
+
+		EntityRowMapper<EntityWithCollection> mapper = getRowMapper(EntityWithCollection.class);
+		when(rowMock.get("primitiveIntegers")).thenReturn((new long[] { 3L, 14L }));
+
+		EntityWithCollection result = mapper.apply(rowMock, metadata);
+		assertThat(result.primitiveIntegers).contains(3, 14);
+	}
+
+	@Test // gh-30
+	public void shouldConvertArrayToBoxedArray() {
+
+		EntityRowMapper<EntityWithCollection> mapper = getRowMapper(EntityWithCollection.class);
+		when(rowMock.get("boxedIntegers")).thenReturn((new int[] { 3, 11 }));
+
+		EntityWithCollection result = mapper.apply(rowMock, metadata);
+		assertThat(result.boxedIntegers).contains(3, 11);
+	}
 	@SuppressWarnings("unchecked")
 	private <T> EntityRowMapper<T> getRowMapper(Class<T> type) {
 		RelationalPersistentEntity<T> entity = (RelationalPersistentEntity<T>) strategy.getMappingContext()
@@ -92,5 +121,8 @@ public class EntityRowMapperUnitTests {
 
 	static class EntityWithCollection {
 		List<String> ids;
+		Set<Integer> integerSet;
+		Integer[] boxedIntegers;
+		int[] primitiveIntegers;
 	}
 }