Examples of javax.jdo.Query.addExtension()

javax.jdo.Query.addExtension()
Add a vendor-specific extension to this query. The key and value are not standard. An implementation must ignore keys that are not recognized. @param key the key of the extension @param value the value of the extension @since 2.0


  public void testBatchGet_Illegal() {
    commitTxn();
    switchDatasource(PersistenceManagerFactoryName.nontransactional);
    Query q = pm.newQuery("select from " + Flight.class.getName() + " where origin == :ids");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      q.execute(Utils.newArrayList());
      fail("expected exception");
    } catch (JDOFatalUserException e) {
      // good

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    } catch (JDOFatalUserException e) {
      // good
    }


    q = pm.newQuery("select from " + Flight.class.getName() + " where id == :ids && origin == :origin");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      q.execute(Utils.newArrayList(), "bos");
      fail("expected exception");
    } catch (JDOFatalUserException e) {
      // good

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    } catch (JDOFatalUserException e) {
      // good
    }


    q = pm.newQuery("select from " + Flight.class.getName() + " where origin == :origin && id == :ids");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      q.execute("bos", Utils.newArrayList());
      fail("expected exception");
    } catch (JDOFatalUserException e) {
      // good

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    } catch (JDOFatalUserException e) {
      // good
    }


    q = pm.newQuery("select from " + Flight.class.getName() + " where id > :ids");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      q.execute(Utils.newArrayList());
      fail("expected exception");
    } catch (JDOFatalUserException e) {
      // good

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    } catch (JDOFatalUserException e) {
      // good
    }


    q = pm.newQuery("select from " + Flight.class.getName() + " where id == :ids order by id");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      q.execute(Utils.newArrayList());
      fail("expected exception");
    } catch (JDOFatalUserException e) {
      // good

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    assertEquals(1, result.size());
  }


  public void testAggregateInFilterFails() {
    Query q = pm.newQuery("select from " + Flight.class.getName() + " where you == max(you)");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      q.execute();
      fail("expected exception");
    } catch (JDOUserException jdoe) {
        if (jdoe.getCause() instanceof DatastoreQuery.UnsupportedDatastoreFeatureException) {

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    ds.put(null, e2);
    Entity e3 = Flight.newFlightEntity("z", "bos", "mia", 24, 25);
    ds.put(null, e3);


    Query q = pm.newQuery("select from " + Flight.class.getName() + " where name.endsWith(\"y\")");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "true");
    @SuppressWarnings("unchecked")
    List<Flight> flights = (List<Flight>) q.execute();
    assertEquals(1, flights.size());


    q = pm.newQuery("select from " + Flight.class.getName() + " where name.endsWith(\"am\")");

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    @SuppressWarnings("unchecked")
    List<Flight> flights = (List<Flight>) q.execute();
    assertEquals(1, flights.size());


    q = pm.newQuery("select from " + Flight.class.getName() + " where name.endsWith(\"am\")");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "true");
    @SuppressWarnings("unchecked")
    List<Flight> flights2 = (List<Flight>) q.execute();
    assertEquals(1, flights2.size());


    q = pm.newQuery("select from " + Flight.class.getName() + " where name.endsWith(\"za\")");

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    @SuppressWarnings("unchecked")
    List<Flight> flights2 = (List<Flight>) q.execute();
    assertEquals(1, flights2.size());


    q = pm.newQuery("select from " + Flight.class.getName() + " where name.endsWith(\"za\")");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "true");
    @SuppressWarnings("unchecked")
    List<Flight> flights3 = (List<Flight>) q.execute();
    assertTrue(flights3.isEmpty());
  }

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    Entity e2 = newFlightEntity("harold", "bos", "mia", 33, 34, 35);
    ds.put(null, e1);
    ds.put(null, e2);


    Query q = pm.newQuery("select max(me) from " + Flight.class.getName());
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "true");
    assertEquals(34, q.execute());
  }


  public void testCountQueryWithFilter_SingleString() {
    Entity e1 = newFlightEntity("harold", "bos", "mia", 23, 24, 25);

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