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

    Assert.assertEquals(new Integer(11), c11_0.getChild11Integer());
    startEnd.end();
    
    startEnd.start();
    q = pm.newQuery("select from " + Child11.class.getName() + " where child12Int > 0");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      q.execute();
      fail("expected JDOFatalUserException");
    } catch (JDOFatalUserException ex) {
      // good Child11 does not have a property child12Int

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    Query q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
        + "courses > c && c.department == 'Biology' && "
        + "grade == 10");
    q.declareVariables(Course.class.getName() + " c");
    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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    q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
        + "courses.contains(c) && c.department == 'Biology' && "
        + "grade > 10");
    q.declareVariables(Course.class.getName() + " c");
    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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    q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
        + "courses.contains(c) && c.department > 'Biology' && "
        + "grade == 10");
    q.declareVariables(Course.class.getName() + " c");
    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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    q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
        + "courses.contains(c) && c.department == 'Biology' && "
        + "grade == 10 order by grade");
    q.declareVariables(Course.class.getName() + " c");
    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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    q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
        + "courses.contains(c) && c.department == 'Biology' && "
        + "grade == 10 order by courses desc");
    q.declareVariables(Course.class.getName() + " c");
    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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    q = pm.newQuery(
        "select from " + Student.class.getName() + " where "
        + "courses.contains(c) && c.department == 'Biology' && "
        + "grade == 10 order by c.department");
    q.declareVariables(Course.class.getName() + " c");
    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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    Entity e3 = Flight.newFlightEntity("z", "bos", "mia", 24, 25);
    ds.put(null, e3);


    try {
      Query q = pm.newQuery("select from " + Flight.class.getName() + " where flightNumber.startsWith(\"y\")");
      q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
      q.execute();
      fail("Should have thrown an exception when invoking 'int.startsWith' but didn't");
    } catch (JDOUserException ue) {
      // Expected
    }

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    assertTrue(flights3.isEmpty());
  }


  public void testMatchesQuery_InvalidLiteral() {
    Query q = pm.newQuery("select from " + Book.class.getName() + " where title.matches('.*y')");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      ((List<?>) q.execute()).isEmpty();
      fail("expected exception");
    } catch (JDOUserException jdoe) {
        if (jdoe.getCause() instanceof DatastoreQuery.UnsupportedDatastoreFeatureException) {

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          throw jdoe;
        }
    }


    q = pm.newQuery("select from " + Book.class.getName() + " where title.matches('y.*y')");
    q.addExtension(DatastoreManager.QUERYEXT_INMEMORY_WHEN_UNSUPPORTED, "false");
    try {
      ((List<?>) q.execute()).isEmpty();
      fail("expected exception");
    } catch (JDOUserException jdoe) {
        if (jdoe.getCause() instanceof DatastoreQuery.UnsupportedDatastoreFeatureException) {

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