Polishing.

Original pull request #1403
See #1286

spring-data-jdbc/src/main/java/org/springframework/data/jdbc/core/convert/SqlGenerator.java

@@ -23,7 +23,6 @@ import org.springframework.data.domain.Pageable;
 import org.springframework.data.domain.Sort;
 import org.springframework.data.jdbc.repository.support.SimpleJdbcRepository;
 import org.springframework.data.mapping.PersistentPropertyPath;
-import org.springframework.data.mapping.PropertyPath;
 import org.springframework.data.mapping.context.MappingContext;
 import org.springframework.data.relational.core.dialect.Dialect;
 import org.springframework.data.relational.core.dialect.RenderContextFactory;
@@ -697,13 +696,13 @@ class SqlGenerator {
 
 	private DeleteBuilder.DeleteWhereAndOr createBaseDeleteById(Table table) {
 
-		return Delete.builder().from(table)
+		return Delete.builder().from(table) //
 				.where(getIdColumn().isEqualTo(getBindMarker(ID_SQL_PARAMETER)));
 	}
 
 	private DeleteBuilder.DeleteWhereAndOr createBaseDeleteByIdIn(Table table) {
 
-		return Delete.builder().from(table)
+		return Delete.builder().from(table) //
 				.where(getIdColumn().in(getBindMarker(IDS_SQL_PARAMETER)));
 	}
 
@@ -784,45 +783,37 @@ class SqlGenerator {
 	}
 
 	private OrderByField orderToOrderByField(Sort.Order order) {
+
 		SqlIdentifier columnName = getColumnNameToSortBy(order);
 		Column column = Column.create(columnName, this.getTable());
 		return OrderByField.from(column, order.getDirection()).withNullHandling(order.getNullHandling());
 	}
 
 	private SqlIdentifier getColumnNameToSortBy(Sort.Order order) {
-		SqlIdentifier columnName = null;
+
 		RelationalPersistentProperty propertyToSortBy = entity.getPersistentProperty(order.getProperty());
 		if (propertyToSortBy != null) {
 			return propertyToSortBy.getColumnName();
 		}
 
-		PersistentPropertyPath<RelationalPersistentProperty> persistentPropertyPath = mappingContext.getPersistentPropertyPath(
-				order.getProperty(), entity.getType()
-		);
+		PersistentPropertyPath<RelationalPersistentProperty> persistentPropertyPath = mappingContext
+				.getPersistentPropertyPath(order.getProperty(), entity.getType());
 
 		propertyToSortBy = persistentPropertyPath.getBaseProperty();
 
-		if (propertyToSortBy == null || !propertyToSortBy.isEmbedded()) {
-			throwPropertyNotMarkedAsEmbeddedException(order);
-		} else {
-			RelationalPersistentEntity<?> embeddedEntity = mappingContext.getRequiredPersistentEntity(propertyToSortBy.getType());
-			columnName = embeddedEntity.getRequiredPersistentProperty(extractFieldNameFromEmbeddedProperty(order)).getColumnName();
-		}
-		return columnName;
-	}
-
-	private void throwPropertyNotMarkedAsEmbeddedException(Sort.Order order) {
-		throw new IllegalArgumentException(
-				String.format(
-						"Specified sorting property '%s' is expected to " +
-						"be the property, named '%s', of embedded entity '%s', but field '%s' is " +
-						"not marked with @Embedded",
-						order.getProperty(),
-						extractFieldNameFromEmbeddedProperty(order),
-						extractEmbeddedPropertyName(order),
-						extractEmbeddedPropertyName(order)
-				)
-		);
+		Assert.state(propertyToSortBy != null && propertyToSortBy.isEmbedded(), () -> String.format( //
+				"Specified sorting property '%s' is expected to " + //
+						"be the property, named '%s', of embedded entity '%s', but field '%s' is " + //
+						"not marked with @Embedded", //
+				order.getProperty(), //
+				extractFieldNameFromEmbeddedProperty(order), //
+				extractEmbeddedPropertyName(order), //
+				extractEmbeddedPropertyName(order) //
+		));
+
+		RelationalPersistentEntity<?> embeddedEntity = mappingContext
+				.getRequiredPersistentEntity(propertyToSortBy.getType());
+		return embeddedEntity.getRequiredPersistentProperty(extractFieldNameFromEmbeddedProperty(order)).getColumnName();
 	}
 
 	public String extractEmbeddedPropertyName(Sort.Order order) {

spring-data-jdbc/src/test/java/org/springframework/data/jdbc/repository/JdbcRepositoryEmbeddedIntegrationTests.java

@@ -92,7 +92,6 @@ public class JdbcRepositoryEmbeddedIntegrationTests {
 	@Autowired NamedParameterJdbcTemplate template;
 	@Autowired DummyEntityRepository repository;
 	@Autowired PersonRepository personRepository;
-
 	@Autowired WithDotColumnRepo withDotColumnRepo;
 
 	@Test // DATAJDBC-111
@@ -246,6 +245,7 @@ public class JdbcRepositoryEmbeddedIntegrationTests {
 
 	@Test // GH-1286
 	public void findOrderedByEmbeddedProperty() {
+
 		Person first = new Person(null, "Bob", "Seattle", new PersonContacts("ddd@example.com", "+1 111 1111 11 11"));
 		Person second = new Person(null, "Alex", "LA", new PersonContacts("aaa@example.com", "+2 222 2222 22 22"));
 		Person third = new Person(null, "Sarah", "NY", new PersonContacts("ggg@example.com", "+3 333 3333 33 33"));
@@ -254,7 +254,6 @@ public class JdbcRepositoryEmbeddedIntegrationTests {
 
 		Iterable<Person> fetchedPersons = personRepository.findAll(Sort.by(new Sort.Order(Sort.Direction.ASC, "personContacts.email")));
 
-		Assertions.assertThat(fetchedPersons).hasSize(3);
 		Assertions.assertThat(fetchedPersons).containsExactly(second, first, third);
 	}
 
@@ -269,7 +268,6 @@ public class JdbcRepositoryEmbeddedIntegrationTests {
 
 		Iterable<WithDotColumn> fetchedPersons = withDotColumnRepo.findAll(Sort.by(new Sort.Order(Sort.Direction.ASC, "address")));
 
-		Assertions.assertThat(fetchedPersons).hasSize(3);
 		Assertions.assertThat(fetchedPersons).containsExactly(second, first, third);
 	}
 

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-db2.sql

@@ -1,8 +1,27 @@
 DROP TABLE dummy_entity;
-CREATE TABLE dummy_entity ( id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, TEST VARCHAR(100), PREFIX2_ATTR BIGINT, PREFIX_TEST VARCHAR(100), PREFIX_PREFIX2_ATTR BIGINT);
-
 DROP TABLE SORT_EMBEDDED_ENTITY;
-CREATE TABLE SORT_EMBEDDED_ENTITY (id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, first_name VARCHAR(100), address VARCHAR(255), email VARCHAR(255), phone_number VARCHAR(255));
-
 DROP TABLE WITH_DOT_COLUMN;
-CREATE TABLE WITH_DOT_COLUMN (id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, "address.city" VARCHAR(255));
+
+CREATE TABLE dummy_entity
+(
+    id                  BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    TEST                VARCHAR(100),
+    PREFIX2_ATTR        BIGINT,
+    PREFIX_TEST         VARCHAR(100),
+    PREFIX_PREFIX2_ATTR BIGINT
+);
+
+CREATE TABLE SORT_EMBEDDED_ENTITY
+(
+    id           BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    first_name   VARCHAR(100),
+    address      VARCHAR(255),
+    email        VARCHAR(255),
+    phone_number VARCHAR(255)
+);
+
+CREATE TABLE WITH_DOT_COLUMN
+(
+    id             BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    "address.city" VARCHAR(255)
+);

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-h2.sql

@@ -1,3 +1,23 @@
-CREATE TABLE dummy_entity ( id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, TEST VARCHAR(100), PREFIX2_ATTR BIGINT, PREFIX_TEST VARCHAR(100), PREFIX_PREFIX2_ATTR BIGINT);
-CREATE TABLE SORT_EMBEDDED_ENTITY (id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, first_name VARCHAR(100), address VARCHAR(255), email VARCHAR(255), phone_number VARCHAR(255));
-CREATE TABLE WITH_DOT_COLUMN (id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, "address.city" VARCHAR(255));
+CREATE TABLE dummy_entity
+(
+    id                  BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    TEST                VARCHAR(100),
+    PREFIX2_ATTR        BIGINT,
+    PREFIX_TEST         VARCHAR(100),
+    PREFIX_PREFIX2_ATTR BIGINT
+);
+
+CREATE TABLE SORT_EMBEDDED_ENTITY
+(
+    id           BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    first_name   VARCHAR(100),
+    address      VARCHAR(255),
+    email        VARCHAR(255),
+    phone_number VARCHAR(255)
+);
+
+CREATE TABLE WITH_DOT_COLUMN
+(
+    id             BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    "address.city" VARCHAR(255)
+);

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-hsql.sql

@@ -1,3 +1,23 @@
-CREATE TABLE dummy_entity ( id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, TEST VARCHAR(100), PREFIX2_ATTR BIGINT, PREFIX_TEST VARCHAR(100), PREFIX_PREFIX2_ATTR BIGINT);
-CREATE TABLE SORT_EMBEDDED_ENTITY (id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, first_name VARCHAR(100), address VARCHAR(255), email VARCHAR(255), phone_number VARCHAR(255));
-CREATE TABLE WITH_DOT_COLUMN (id BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY, "address.city" VARCHAR(255));
+CREATE TABLE dummy_entity
+(
+    id                  BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    TEST                VARCHAR(100),
+    PREFIX2_ATTR        BIGINT,
+    PREFIX_TEST         VARCHAR(100),
+    PREFIX_PREFIX2_ATTR BIGINT
+);
+
+CREATE TABLE SORT_EMBEDDED_ENTITY
+(
+    id           BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    first_name   VARCHAR(100),
+    address      VARCHAR(255),
+    email        VARCHAR(255),
+    phone_number VARCHAR(255)
+);
+
+CREATE TABLE WITH_DOT_COLUMN
+(
+    id             BIGINT GENERATED BY DEFAULT AS IDENTITY ( START WITH 1 ) PRIMARY KEY,
+    "address.city" VARCHAR(255)
+);

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-mariadb.sql

@@ -1,3 +1,23 @@
-CREATE TABLE dummy_entity (id BIGINT AUTO_INCREMENT PRIMARY KEY, TEST VARCHAR(100), PREFIX2_ATTR BIGINT, PREFIX_TEST VARCHAR(100), PREFIX_PREFIX2_ATTR BIGINT);
-CREATE TABLE SORT_EMBEDDED_ENTITY (id BIGINT AUTO_INCREMENT PRIMARY KEY, first_name VARCHAR(100), address VARCHAR(255), email VARCHAR(255), phone_number VARCHAR(255));
-CREATE TABLE WITH_DOT_COLUMN (id BIGINT AUTO_INCREMENT PRIMARY KEY, `address.city` VARCHAR(255));
+CREATE TABLE dummy_entity
+(
+    id                  BIGINT AUTO_INCREMENT PRIMARY KEY,
+    TEST                VARCHAR(100),
+    PREFIX2_ATTR        BIGINT,
+    PREFIX_TEST         VARCHAR(100),
+    PREFIX_PREFIX2_ATTR BIGINT
+);
+
+CREATE TABLE SORT_EMBEDDED_ENTITY
+(
+    id           BIGINT AUTO_INCREMENT PRIMARY KEY,
+    first_name   VARCHAR(100),
+    address      VARCHAR(255),
+    email        VARCHAR(255),
+    phone_number VARCHAR(255)
+);
+
+CREATE TABLE WITH_DOT_COLUMN
+(
+    id             BIGINT AUTO_INCREMENT PRIMARY KEY,
+    `address.city` VARCHAR(255)
+);

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-mssql.sql

@@ -1,8 +1,27 @@
 DROP TABLE IF EXISTS dummy_entity;
-CREATE TABLE dummy_entity (id BIGINT IDENTITY PRIMARY KEY, TEST VARCHAR(100), PREFIX2_ATTR BIGINT, PREFIX_TEST VARCHAR(100), PREFIX_PREFIX2_ATTR BIGINT);
-
 DROP TABLE IF EXISTS SORT_EMBEDDED_ENTITY;
-CREATE TABLE SORT_EMBEDDED_ENTITY (id BIGINT IDENTITY PRIMARY KEY, first_name VARCHAR(100), address VARCHAR(255), email VARCHAR(255), phone_number VARCHAR(255));
-
 DROP TABLE IF EXISTS WITH_DOT_COLUMN;
-CREATE TABLE WITH_DOT_COLUMN (id BIGINT IDENTITY PRIMARY KEY, "address.city" VARCHAR(255));
+
+CREATE TABLE dummy_entity
+(
+    id                  BIGINT IDENTITY PRIMARY KEY,
+    TEST                VARCHAR(100),
+    PREFIX2_ATTR        BIGINT,
+    PREFIX_TEST         VARCHAR(100),
+    PREFIX_PREFIX2_ATTR BIGINT
+);
+
+CREATE TABLE SORT_EMBEDDED_ENTITY
+(
+    id           BIGINT IDENTITY PRIMARY KEY,
+    first_name   VARCHAR(100),
+    address      VARCHAR(255),
+    email        VARCHAR(255),
+    phone_number VARCHAR(255)
+);
+
+CREATE TABLE WITH_DOT_COLUMN
+(
+    id             BIGINT IDENTITY PRIMARY KEY,
+    "address.city" VARCHAR(255)
+);

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-mysql.sql

@@ -1,3 +1,23 @@
-CREATE TABLE dummy_entity (id BIGINT AUTO_INCREMENT PRIMARY KEY, TEST VARCHAR(100), PREFIX2_ATTR BIGINT, PREFIX_TEST VARCHAR(100), PREFIX_PREFIX2_ATTR BIGINT);
-CREATE TABLE SORT_EMBEDDED_ENTITY (id BIGINT AUTO_INCREMENT PRIMARY KEY, first_name VARCHAR(100), address VARCHAR(255), email VARCHAR(255), phone_number VARCHAR(255));
-CREATE TABLE WITH_DOT_COLUMN (id BIGINT AUTO_INCREMENT PRIMARY KEY, `address.city` VARCHAR(255));
+CREATE TABLE dummy_entity
+(
+    id                  BIGINT AUTO_INCREMENT PRIMARY KEY,
+    TEST                VARCHAR(100),
+    PREFIX2_ATTR        BIGINT,
+    PREFIX_TEST         VARCHAR(100),
+    PREFIX_PREFIX2_ATTR BIGINT
+);
+
+CREATE TABLE SORT_EMBEDDED_ENTITY
+(
+    id           BIGINT AUTO_INCREMENT PRIMARY KEY,
+    first_name   VARCHAR(100),
+    address      VARCHAR(255),
+    email        VARCHAR(255),
+    phone_number VARCHAR(255)
+);
+
+CREATE TABLE WITH_DOT_COLUMN
+(
+    id             BIGINT AUTO_INCREMENT PRIMARY KEY,
+    `address.city` VARCHAR(255)
+);

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-oracle.sql

@@ -1,4 +1,6 @@
 DROP TABLE DUMMY_ENTITY CASCADE CONSTRAINTS PURGE;
+DROP TABLE SORT_EMBEDDED_ENTITY CASCADE CONSTRAINTS PURGE;
+DROP TABLE WITH_DOT_COLUMN CASCADE CONSTRAINTS PURGE;
 
 CREATE TABLE DUMMY_ENTITY (
     ID NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY PRIMARY KEY,
@@ -8,7 +10,6 @@ CREATE TABLE DUMMY_ENTITY (
     PREFIX_PREFIX2_ATTR NUMBER
 );
 
-DROP TABLE SORT_EMBEDDED_ENTITY CASCADE CONSTRAINTS PURGE;
 
 CREATE TABLE SORT_EMBEDDED_ENTITY (
     id NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY PRIMARY KEY,
@@ -18,7 +19,6 @@ CREATE TABLE SORT_EMBEDDED_ENTITY (
     phone_number VARCHAR(255)
 );
 
-DROP TABLE WITH_DOT_COLUMN CASCADE CONSTRAINTS PURGE;
 
 CREATE TABLE WITH_DOT_COLUMN (
     id NUMBER GENERATED BY DEFAULT ON NULL AS IDENTITY PRIMARY KEY,

spring-data-jdbc/src/test/resources/org.springframework.data.jdbc.repository/JdbcRepositoryEmbeddedIntegrationTests-postgres.sql

@@ -1,8 +1,27 @@
 DROP TABLE dummy_entity;
-CREATE TABLE dummy_entity (id SERIAL PRIMARY KEY, TEST VARCHAR(100), PREFIX2_ATTR BIGINT, PREFIX_TEST VARCHAR(100), PREFIX_PREFIX2_ATTR BIGINT);
-
 DROP TABLE "SORT_EMBEDDED_ENTITY";
-CREATE TABLE "SORT_EMBEDDED_ENTITY" (id SERIAL PRIMARY KEY, first_name VARCHAR(100), address VARCHAR(255), email VARCHAR(255), phone_number VARCHAR(255));
-
 DROP TABLE WITH_DOT_COLUMN;
-CREATE TABLE WITH_DOT_COLUMN (id SERIAL PRIMARY KEY, "address.city" VARCHAR(255));
+
+CREATE TABLE dummy_entity
+(
+    id                  SERIAL PRIMARY KEY,
+    TEST                VARCHAR(100),
+    PREFIX2_ATTR        BIGINT,
+    PREFIX_TEST         VARCHAR(100),
+    PREFIX_PREFIX2_ATTR BIGINT
+);
+
+CREATE TABLE "SORT_EMBEDDED_ENTITY"
+(
+    id           SERIAL PRIMARY KEY,
+    first_name   VARCHAR(100),
+    address      VARCHAR(255),
+    email        VARCHAR(255),
+    phone_number VARCHAR(255)
+);
+
+CREATE TABLE WITH_DOT_COLUMN
+(
+    id             SERIAL PRIMARY KEY,
+    "address.city" VARCHAR(255)
+);