Merge pull request #33979 from ath0s

* gh-33979:
  Polish "Configure jOOQ with TransactionProvider bean when available"
  Configure jOOQ with TransactionProvider bean when available

Closes gh-33979

Author: wilkinsona

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/jooq/JooqAutoConfiguration.java

@@ -87,11 +87,13 @@ public DefaultDSLContext dslContext(org.jooq.Configuration configuration) {
 		@Bean
 		@ConditionalOnMissingBean(org.jooq.Configuration.class)
 		public DefaultConfiguration jooqConfiguration(JooqProperties properties, ConnectionProvider connectionProvider,
-				DataSource dataSource, ObjectProvider<ExecuteListenerProvider> executeListenerProviders,
+				DataSource dataSource, ObjectProvider<TransactionProvider> transactionProvider,
+				ObjectProvider<ExecuteListenerProvider> executeListenerProviders,
 				ObjectProvider<DefaultConfigurationCustomizer> configurationCustomizers) {
 			DefaultConfiguration configuration = new DefaultConfiguration();
 			configuration.set(properties.determineSqlDialect(dataSource));
 			configuration.set(connectionProvider);
+			transactionProvider.ifAvailable(configuration::set);
 			configuration.set(executeListenerProviders.orderedStream().toArray(ExecuteListenerProvider[]::new));
 			configurationCustomizers.orderedStream().forEach((customizer) -> customizer.customize(configuration));
 			return configuration;

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/jooq/JooqAutoConfigurationTests.java

@@ -113,6 +113,17 @@ void jooqWithDefaultConnectionProvider() {
 		});
 	}
 
+	@Test
+	void jooqWithDefaultTransactionProvider() {
+		this.contextRunner.withUserConfiguration(JooqDataSourceConfiguration.class, TxManagerConfiguration.class)
+				.run((context) -> {
+					DSLContext dsl = context.getBean(DSLContext.class);
+					TransactionProvider expectedTransactionProvider = context.getBean(TransactionProvider.class);
+					TransactionProvider transactionProvider = dsl.configuration().transactionProvider();
+					assertThat(transactionProvider).isSameAs(expectedTransactionProvider);
+				});
+	}
+
 	@Test
 	void jooqWithDefaultExecuteListenerProvider() {
 		this.contextRunner.withUserConfiguration(JooqDataSourceConfiguration.class).run((context) -> {
@@ -164,6 +175,19 @@ void transactionProviderBacksOffOnExistingTransactionProvider() {
 				.run((context) -> {
 					TransactionProvider transactionProvider = context.getBean(TransactionProvider.class);
 					assertThat(transactionProvider).isInstanceOf(CustomTransactionProvider.class);
+					DSLContext dsl = context.getBean(DSLContext.class);
+					assertThat(dsl.configuration().transactionProvider()).isSameAs(transactionProvider);
+				});
+	}
+
+	@Test
+	void transactionProviderFromConfigurationCustomizerOverridesTransactionProviderBean() {
+		this.contextRunner.withUserConfiguration(JooqDataSourceConfiguration.class, TxManagerConfiguration.class,
+				CustomTransactionProviderFromCustomizerConfiguration.class).run((context) -> {
+					TransactionProvider transactionProvider = context.getBean(TransactionProvider.class);
+					assertThat(transactionProvider).isInstanceOf(SpringTransactionProvider.class);
+					DSLContext dsl = context.getBean(DSLContext.class);
+					assertThat(dsl.configuration().transactionProvider()).isInstanceOf(CustomTransactionProvider.class);
 				});
 	}
 
@@ -228,6 +252,16 @@ TransactionProvider transactionProvider() {
 
 	}
 
+	@Configuration(proxyBeanMethods = false)
+	static class CustomTransactionProviderFromCustomizerConfiguration {
+
+		@Bean
+		DefaultConfigurationCustomizer transactionProviderCustomizer() {
+			return (configuration) -> configuration.setTransactionProvider(new CustomTransactionProvider());
+		}
+
+	}
+
 	@Configuration(proxyBeanMethods = false)
 	static class TxManagerConfiguration {