BAEL-1908 Initial Commit

2018-06-29 23:26:16 -04:00
parent b567959890
commit b6ca7d58b2
8 changed files with 281 additions and 0 deletions
@@ -0,0 +1,71 @@
+package com.baeldung.sqlresultsetmapping;
+
+import static org.junit.Assert.*;
+
+import org.junit.jupiter.api.*;
+
+import javax.persistence.EntityManager;
+import javax.persistence.EntityManagerFactory;
+import javax.persistence.Persistence;
+import javax.persistence.Query;
+import java.util.Collections;
+import java.util.List;
+
+public class SqlResultSetMappingUnitTest {
+
+    private static EntityManager em;
+    private static EntityManagerFactory emFactory;
+
+    @BeforeAll
+    public static void setup() {
+        emFactory = Persistence.createEntityManagerFactory("java-jpa-scheduled-day");
+        em = emFactory.createEntityManager();
+    }
+
+    @Test
+    public void whenNamedQuery_thenColumnResult() {
+        List<Long> employeeIds = em.createNamedQuery("FridayEmployees").getResultList();
+        assertEquals(2, employeeIds.size());
+    }
+
+    @Test
+    public void whenNamedQuery_thenConstructorResult() {
+        List<ScheduledDay> scheduleDays = Collections.checkedList(em.createNamedQuery("Schedules", ScheduledDay.class).getResultList(), ScheduledDay.class);
+        assertEquals(3, scheduleDays.size());
+        assertTrue(scheduleDays.stream().allMatch(c -> c.getHourIn().longValue() == 8));
+    }
+
+    @Test
+    public void whenNamedQuery_thenSingleEntityResult() {
+        List<Employee> employees = Collections.checkedList(em.createNamedQuery("Employees").getResultList(), Employee.class);
+        assertEquals(3, employees.size());
+        assertTrue(employees.stream().allMatch(c -> c.getClass() == Employee.class));
+    }
+
+    @Test
+    public void whenNamedQuery_thenMultipleEntityResult() {
+        final Query query = em.createNativeQuery("SELECT e.id, e.name, d.id, d.employeeId, "
+                                                    + " d.dayOfWeek, d.hourIn, d.hourOut "
+                                                    + " FROM employee e, schedule_days d "
+                                                    + " WHERE e.id = d.employeeId", "EmployeeScheduleResults");
+        List<Object[]> results = query.getResultList();
+        assertEquals(4, results.size());
+        assertTrue(results.get(0).length == 2);
+
+        Employee emp = (Employee) results.get(1)[0];
+        ScheduledDay day = (ScheduledDay) results.get(1)[1];
+
+        assertTrue(day.getEmployeeId() == emp.getId());
+    }
+
+    @AfterAll
+    public static void destroy() {
+
+        if (em != null) {
+            em.close();
+        }
+        if (emFactory != null) {
+            emFactory.close();
+        }
+    }
+}
@@ -0,0 +1,3 @@
+INSERT INTO employee (1, "JOHN");
+INSERT INTO employee (2, "MARY");
+INSERT INTO employee (3, "FRANK");
@@ -0,0 +1,10 @@
+INSERT INTO SCHEDULE_DAYS (1, 13, 21, 'FRIDAY');
+INSERT INTO SCHEDULE_DAYS (2, 8, 4, 'SATURDAY');
+INSERT INTO SCHEDULE_DAYS (3, 8, 4, 'FRIDAY');
+
+
+--    private Long id;
+--    private Long employeeId;
+--    private Time in;
+--    private Time out;
+--    private DayOfWeek dayOfWeek;