How to configure transaction management for working with 2 different db in Spring?

Question

I have 2 databases (MySql and HSQLDB). I configured 2 data sources and 2 EntityManagerFactory beans. I can also configure 2 correspondent JpaTransactionManager beans.

Answer 1

Declare your without transaction-manager attribute, declare qualifiers for transaction managers like this:

Use this qualifier in @Transactional as a value to select one of transaction managers:

@Transactional("txManager1")

or, with more properties:

@Transactional(value = "txManager1", readOnly = true)