Merge branch '5.3.x'

spring-jdbc/src/main/java/org/springframework/jdbc/support/incrementer/H2SequenceMaxValueIncrementer.java

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2018 the original author or authors.
+ * Copyright 2002-2022 the original author or authors.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -23,6 +23,7 @@ import javax.sql.DataSource;
  * of a given H2 sequence.
  *
  * @author Thomas Risberg
+ * @author Henning Pöttker
  * @since 2.5
  */
 public class H2SequenceMaxValueIncrementer extends AbstractSequenceMaxValueIncrementer {
@@ -47,7 +48,7 @@ public class H2SequenceMaxValueIncrementer extends AbstractSequenceMaxValueIncre
 
 	@Override
 	protected String getSequenceQuery() {
-		return "select " + getIncrementerName() + ".nextval from dual";
+		return "values next value for " + getIncrementerName();
 	}
 
 }

spring-jdbc/src/test/java/org/springframework/jdbc/support/incrementer/H2SequenceMaxValueIncrementerTests.java

@@ -0,0 +1,99 @@
+/*
+ * Copyright 2002-2022 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.jdbc.support.incrementer;
+
+import java.util.UUID;
+
+import javax.sql.DataSource;
+
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import org.springframework.jdbc.core.JdbcTemplate;
+import org.springframework.jdbc.datasource.DataSourceTransactionManager;
+import org.springframework.jdbc.datasource.SimpleDriverDataSource;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabase;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseBuilder;
+import org.springframework.jdbc.datasource.embedded.EmbeddedDatabaseType;
+import org.springframework.transaction.PlatformTransactionManager;
+import org.springframework.transaction.support.TransactionTemplate;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Integration tests for {@link H2SequenceMaxValueIncrementer}.
+ *
+ * @author Henning Pöttker
+ * @author Sam Brannen
+ * @since 5.3.15
+ */
+class H2SequenceMaxValueIncrementerTests {
+
+	/**
+	 * Tests that the incrementer works when using the JDBC connection URL used
+	 * in the {@code H2EmbeddedDatabaseConfigurer} which is used transparently
+	 * when using Spring's {@link EmbeddedDatabaseBuilder}.
+	 *
+	 * <p>In other words, this tests compatibility with the default H2
+	 * <em>compatibility mode</em>.
+	 */
+	@Test
+	void incrementsSequenceUsingH2EmbeddedDatabaseConfigurer() {
+		EmbeddedDatabase database = new EmbeddedDatabaseBuilder()
+				.setType(EmbeddedDatabaseType.H2)
+				.generateUniqueName(true)
+				.addScript("classpath:/org/springframework/jdbc/support/incrementer/schema.sql")
+				.build();
+
+		JdbcTemplate jdbcTemplate = new JdbcTemplate(database);
+		assertThat(jdbcTemplate.queryForObject("values next value for SEQ", int.class)).isEqualTo(1);
+
+		H2SequenceMaxValueIncrementer incrementer = new H2SequenceMaxValueIncrementer(database, "SEQ");
+		assertThat(incrementer.nextIntValue()).isEqualTo(2);
+		assertThat(incrementer.nextStringValue()).isEqualTo("3");
+
+		database.shutdown();
+	}
+
+	/**
+	 * Tests that the incrementer works when using all supported H2 <em>compatibility modes</em>.
+	 *
+	 * <p>The following modes are only supported with H2 2.x or higher: STRICT, LEGACY, MariaDB
+	 */
+	@ParameterizedTest
+	@ValueSource(strings = { "DB2", "Derby", "HSQLDB", "MSSQLServer", "MySQL", "Oracle", "PostgreSQL" })
+	void incrementsSequenceWithExplicitH2CompatibilityMode(String compatibilityMode) {
+		String connectionUrl = String.format("jdbc:h2:mem:%s;MODE=%s", UUID.randomUUID().toString(), compatibilityMode);
+		DataSource dataSource = new SimpleDriverDataSource(new org.h2.Driver(), connectionUrl, "sa", "");
+		JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
+		PlatformTransactionManager transactionManager = new DataSourceTransactionManager(dataSource);
+		TransactionTemplate transactionTemplate = new TransactionTemplate(transactionManager);
+
+		transactionTemplate.executeWithoutResult(status -> {
+			jdbcTemplate.execute("CREATE SEQUENCE SEQ");
+			assertThat(jdbcTemplate.queryForObject("values next value for SEQ", int.class)).isEqualTo(1);
+
+			H2SequenceMaxValueIncrementer incrementer = new H2SequenceMaxValueIncrementer(dataSource, "SEQ");
+			assertThat(incrementer.nextIntValue()).isEqualTo(2);
+			assertThat(incrementer.nextStringValue()).isEqualTo("3");
+		});
+
+		jdbcTemplate.execute("SHUTDOWN");
+	}
+
+}

spring-jdbc/src/test/resources/org/springframework/jdbc/datasource/init/users-schema-without-separator.sql

@@ -1,5 +1,5 @@
 CREATE TABLE users (
-	id INTEGER NOT NULL IDENTITY,
+	id INTEGER GENERATED BY DEFAULT AS IDENTITY,
 	first_name VARCHAR(50) NOT NULL,
 	last_name VARCHAR(50) NOT NULL
 )

spring-jdbc/src/test/resources/org/springframework/jdbc/datasource/init/users-schema.sql

@@ -1,7 +1,7 @@
 DROP TABLE users IF EXISTS;
 
 CREATE TABLE users (
-	id INTEGER NOT NULL IDENTITY,
+	id INTEGER GENERATED BY DEFAULT AS IDENTITY,
 	first_name VARCHAR(50) NOT NULL,
 	last_name VARCHAR(50) NOT NULL
 );

spring-jdbc/src/test/resources/org/springframework/jdbc/support/incrementer/schema.sql

@@ -0,0 +1 @@
+CREATE SEQUENCE SEQ;