Package com.google.appengine.datanucleus.test.jdo.OwnedJoinsJDO

Examples of com.google.appengine.datanucleus.test.jdo.OwnedJoinsJDO.Course


* @author Max Ross <maxr@google.com>
*/
public class JDOQLQueryOwnedJoinTest extends JDOTestCase {

  public void testJoinOnOneToMany_Simple() {
    Course course1 = newCourse("Biology");
    Course course2 = newCourse("Not Biology");
    Student student = newStudent(10, course1, course2);
    makePersistentInTxn(student, TXN_START_END);
    beginTxn();
    Query q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
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    assertEquals(Collections.singletonList(student), q.execute());
    commitTxn();
  }

  public void testJoinOnOneToMany_LegalOrderBy() {
    Course course1 = newCourse("Biology");
    Course course2 = newCourse("Not Biology");
    Student student = newStudent(10, course1, course2);
    makePersistentInTxn(student, TXN_START_END);
    beginTxn();
    Query q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
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    assertEquals(Collections.singletonList(student), q.execute());
    commitTxn();
  }

  public void testJoinOnOneToMany_Offset() {
    Course course1 = newCourse("Biology");
    Course course2 = newCourse("Not Biology");
    Course course3 = newCourse("Biology");
    Course course4 = newCourse("Not Biology");
    Course course5 = newCourse("Biology");
    Course course6 = newCourse("Not Biology");
    Student student = newStudent(10, course1, course2);
    makePersistentInTxn(student, TXN_START_END);
    Student student2 = newStudent(11, course3, course4);
    makePersistentInTxn(student2, TXN_START_END);
    Student student3 = newStudent(10, course5, course6);
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    assertEquals(Collections.emptyList(), q.execute());
    commitTxn();
  }

  public void testJoinOnOneToMany_Limit() {
    Course course1 = newCourse("Biology");
    Course course2 = newCourse("Not Biology");
    Course course3 = newCourse("Biology");
    Course course4 = newCourse("Not Biology");
    Course course5 = newCourse("Biology");
    Course course6 = newCourse("Not Biology");
    Student student = newStudent(10, course1, course2);
    makePersistentInTxn(student, TXN_START_END);
    Student student2 = newStudent(11, course3, course4);
    makePersistentInTxn(student2, TXN_START_END);
    Student student3 = newStudent(10, course5, course6);
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