Make it easier to use jOOQ with several data sources

Closes gh-11324

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

@@ -37,8 +37,9 @@ import org.springframework.jdbc.support.SQLStateSQLExceptionTranslator;
  * @author Andreas Ahlenstorf
  * @author Phillip Webb
  * @author Stephane Nicoll
+ * @author 1.5.10
  */
-class JooqExceptionTranslator extends DefaultExecuteListener {
+public class JooqExceptionTranslator extends DefaultExecuteListener {
 
 	// Based on the jOOQ-spring-example from https://github.com/jOOQ/jOOQ
 

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

@@ -30,14 +30,15 @@ import org.springframework.transaction.support.DefaultTransactionDefinition;
  * @author Lukas Eder
  * @author Andreas Ahlenstorf
  * @author Phillip Webb
+ * @since 1.5.10
  */
-class SpringTransactionProvider implements TransactionProvider {
+public class SpringTransactionProvider implements TransactionProvider {
 
 	// Based on the jOOQ-spring-example from https://github.com/jOOQ/jOOQ
 
 	private final PlatformTransactionManager transactionManager;
 
-	SpringTransactionProvider(PlatformTransactionManager transactionManager) {
+	public SpringTransactionProvider(PlatformTransactionManager transactionManager) {
 		this.transactionManager = transactionManager;
 	}
 

spring-boot-docs/src/main/asciidoc/howto.adoc

@@ -2095,6 +2095,19 @@ include::{code-examples}/elasticsearch/HibernateSearchElasticsearchExample.java[
 
 
 
+[[howto-configure-a-component-that-is-used-by-JPA]]
+=== Configure jOOQ with Two DataSources
+If you need to use jOOQ with multiple data sources, you should create your own
+`DSLContext` for each, refer to
+{sc-spring-boot-autoconfigure}/jooq/JooqAutoConfiguration.{sc-ext}[JooqAutoConfiguration]
+for more details.
+
+TIP: In particular, `JooqExceptionTranslator` and `SpringTransactionProvider` can be
+reused to provide similar features to what the auto-configuration does with a single
+`DataSource`.
+
+
+
 [[howto-database-initialization]]
 == Database initialization
 An SQL database can be initialized in different ways depending on what your stack is. Or