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* to you under the Apache License, Version 2.0 (the
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*
* http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.openjpa.persistence.jdbc.maps.spec_10_1_26_ex2;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Set;
import javax.persistence.EntityManager;
import javax.persistence.EntityManagerFactory;
import javax.persistence.EntityTransaction;
import javax.persistence.Query;
import junit.framework.Assert;
import org.apache.openjpa.kernel.QueryImpl;
import org.apache.openjpa.persistence.test.AllowFailure;
import org.apache.openjpa.persistence.test.SQLListenerTestCase;
public class TestSpec10_1_26_Ex2 extends SQLListenerTestCase {
public int numDepartments = 2;
public int numEmployeesPerDept = 2;
public int deptId = 1;
public int empId = 1;
public List rsAllDepartments = null;
public void setUp() {
super.setUp(CLEAR_TABLES,
Department.class,
Employee.class,
EmployeePK.class);
createObj(emf);
rsAllDepartments = getAll(Department.class);
}
@AllowFailure
public void testQueryInMemoryQualifiedId() throws Exception {
queryQualifiedId(true);
}
public void testQueryQualifiedId() throws Exception {
queryQualifiedId(false);
}
public void setCandidate(Query q, Class clz)
throws Exception {
org.apache.openjpa.persistence.QueryImpl q1 =
(org.apache.openjpa.persistence.QueryImpl) q;
org.apache.openjpa.kernel.Query q2 = q1.getDelegate();
org.apache.openjpa.kernel.QueryImpl qi = (QueryImpl) q2;
if (clz == Department.class)
qi.setCandidateCollection(rsAllDepartments);
}
public void queryQualifiedId(boolean inMemory) throws Exception {
EntityManager em = emf.createEntityManager();
String query = "select KEY(e), KEY(e).name from Department d, " +
" in (d.empMap) e where d.deptId = 1";
Query q = em.createQuery(query);
if (inMemory)
setCandidate(q, Department.class);
List rs = q.getResultList();
EmployeePK d = (EmployeePK) ((Object[]) rs.get(0))[0];
String name = (String) ((Object[]) rs.get(0))[1];
assertEquals(d.getName(), name);
em.clear();
query = "select ENTRY(e) from Department d, " +
" in (d.empMap) e where d.deptId = 1";
q = em.createQuery(query);
if (inMemory)
setCandidate(q, Department.class);
rs = q.getResultList();
Map.Entry me = (Map.Entry) rs.get(0);
assertTrue(d.equals(me.getKey()));
// test GROUP BY qualified path
sql.clear();
query = "select count(KEY(e).bDay) from Department d " +
" left join d.empMap e GROUP BY KEY(e).bDay";
q = em.createQuery(query);
if (inMemory)
setCandidate(q, Department.class);
rs = q.getResultList();
if (!inMemory)
assertTrue(sql.get(0).toUpperCase().indexOf(" GROUP BY ") != -1);
em.close();
}
public void testQueryObject() {
queryObj(emf);
}
public void createObj(EntityManagerFactory emf) {
EntityManager em = emf.createEntityManager();
EntityTransaction tran = em.getTransaction();
for (int i = 0; i < numDepartments; i++)
createDepartment(em, deptId++);
tran.begin();
em.flush();
tran.commit();
em.close();
}
public void createDepartment(EntityManager em, int id) {
Department d = new Department();
d.setDeptId(id);
for (int i = 0; i < numEmployeesPerDept; i++) {
Employee e = createEmployee(em, empId++);
d.addEmployee(e);
e.setDepartment(d);
em.persist(e);
}
em.persist(d);
}
public Employee createEmployee(EntityManager em, int id) {
Employee e = new Employee("e" + id, new Date());
return e;
}
public void findObj(EntityManagerFactory emf) {
EntityManager em = emf.createEntityManager();
Department d = em.find(Department.class, 1);
assertDepartment(d);
Map emps = d.getEmpMap();
Set<EmployeePK> keys = emps.keySet();
for (EmployeePK key : keys) {
Employee e = em.find(Employee.class, key);
assertEmployee(e);
}
// updateObj by adding a new Employee
updateObj(em, d);
deleteObj(em, d);
em.close();
}
public void updateObj(EntityManager em, Department d) {
EntityTransaction tran = em.getTransaction();
// add an element
tran.begin();
Employee e = createEmployee(em, numDepartments * numEmployeesPerDept
+ 1);
d.addEmployee(e);
e.setDepartment(d);
em.persist(d);
em.persist(e);
em.flush();
tran.commit();
// remove an element
tran.begin();
d.removeEmployee(e.getEmpPK());
e.setDepartment(null);
em.persist(d);
em.persist(e);
em.flush();
tran.commit();
}
public void deleteObj(EntityManager em, Department d) {
EntityTransaction tran = em.getTransaction();
tran.begin();
em.remove(d);
tran.commit();
}
public void assertDepartment(Department d) {
int id = d.getDeptId();
Map es = d.getEmpMap();
Assert.assertEquals(2, es.size());
Set keys = es.keySet();
for (Object obj : keys) {
EmployeePK empPK = (EmployeePK) obj;
Employee e = (Employee) es.get(empPK);
Assert.assertEquals(empPK, e.getEmpPK());
}
}
public void queryObj(EntityManagerFactory emf) {
queryDepartment(emf);
queryEmployee(emf);
}
public void queryDepartment(EntityManagerFactory emf) {
EntityManager em = emf.createEntityManager();
EntityTransaction tran = em.getTransaction();
tran.begin();
Query q = em.createQuery("select d from Department d");
List<Department> ds = q.getResultList();
for (Department d : ds) {
assertDepartment(d);
}
tran.commit();
em.close();
}
public void queryEmployee(EntityManagerFactory emf) {
EntityManager em = emf.createEntityManager();
EntityTransaction tran = em.getTransaction();
tran.begin();
Query q = em.createQuery("select e from Employee e");
List<Employee> es = q.getResultList();
for (Employee e : es) {
assertEmployee(e);
}
tran.commit();
em.close();
}
public void assertEmployee(Employee e) {
EmployeePK pk = e.getEmpPK();
Department d = e.getDepartment();
}
}