Software Architecture in Java: Design & Development/

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Develop the Data Access Tier

Develop the Data Access Tier

The data access tier is the second step in developing a service

We'll cover the following...

Next, we will look at the data access tier. We will start with a simple structure for the data access test and write the test case for the find all records operation.

Find all records operation

Java
@RunWith( SpringJUnit4ClassRunner.class )

@ContextConfiguration( locations = { "classpath:context.xml" } )

@TransactionConfiguration( defaultRollback = true )

@Transactional

public class ProductDaoImplTest {

  @Autowired

  private ProductDao dao ;



  @Test

  public void testGetAll() {

	Assert.assertEquals(0L, dao.getAll().size());

  }

}

We will see how to write the data access operation for the above test. The @Repository annotation indicates that the class is a data access operation object, which is also eligible for component scanning.

The class level @Transactional annotation shows that all the methods of the class are transactional by ...