How to define HSQ DB properties in Spring JPA using annoations - spring

Question

I am running HSQL DB as a Im memory using run manger Swing.I have to connect the HSQLDB server from Spring JPA repository using annotations.
My repository class.
#RepositoryRestResource
public interface Vehicle extends JpaRepository<Vehicle , BigInteger>{
public List<Vehicle > findAll(Sort sort);
}
service Method:
#Service
public class LocationService {
#Autowired
VehicletRepository vehicleRepository = null;
/**
* This method is to get all the locations from the repository
*/
public List<Vehicle> getVehicless() {
Order order = new Order(Direction.ASC,"vehicleCode");
Sort sort = new Sort(order);
List<Airport> airports = vehicletRepository .findAll(sort);
System.out.println("inside service");
return vehicles;
}
}
Anyone help to achieve Spring JPA conenction with HSQL DB using annotations.

Answer 1

I assume you dont use Spring boot:
you need #Configuration class -(it basically is new way to configure spring applications in java ) with #EnableJpaRepositories which turn it spring data jpa/ spring data rest for you. You will also have to specify your entity manager, transaction manager and data source beans. Example below:
#Configuration
#EnableJpaRepositories("your.package.with.repositories")
public class DBConfig{
#Bean
public JpaTransactionManager transactionManager() {
JpaTransactionManager transactionManager = new JpaTransactionManager();
transactionManager.setEntityManagerFactory(entityManagerFactory().getObject());
return transactionManager;
}
#Bean
public DataSource dataSource() {
BasicDataSource dataSource = new BasicDataSource();
DBConfigurationCommon.configureDB(dataSource, your_jdbc_url_here, db_username_here, db_password_here);
return dataSource;
}
#Bean
public LocalContainerEntityManagerFactoryBean entityManagerFactory() {
LocalContainerEntityManagerFactoryBean entityManagerFactoryBean = new LocalContainerEntityManagerFactoryBean();
entityManagerFactoryBean.setDataSource(dataSource());
entityManagerFactoryBean.setJpaVendorAdapter(new HibernateJpaVendorAdapter());
//you may need to define new Properties(); here with hibernate dialect and add it to entity manager factory
entityManagerFactoryBean.setPackagesToScan("your_package_with_domain_classes_here");
return entityManagerFactoryBean;
}
}