Hands-On High Performance with Spring 5

Declarative ACID using @Transactional

Declarative transactions are highly recommended because they keep transaction management out of business logic and are easy to configure. Let's see an example of annotation-based declarative transaction management.

Let's use the same example that was used in the Spring JDBC section. In our example, we are using JdbcTemplate for database interaction. So, we need to add DataSourceTransactionManager in our Spring configuration file.

The following is the Spring bean configuration class:

@Configuration@EnableTransactionManagementpublic class AppConfig {    @Bean    public DataSource dataSource() {        DriverManagerDataSource dataSource = new         DriverManagerDataSource();  dataSource.setDriverClassName("org.postgresql.Driver"); ...