Java Code Examples for com.google.appengine.api.datastore.Query.CompositeFilterOperator#and()

@Test
public void queryRestrictions_compositeFilter_isInvalid() throws Exception {
  long minBirthYear = 1940;
  long maxHeight = 200;
  // [START gae_java8_datastore_inequality_filters_one_property_invalid]
  Filter birthYearMinFilter =
      new FilterPredicate("birthYear", FilterOperator.GREATER_THAN_OR_EQUAL, minBirthYear);

  Filter heightMaxFilter =
      new FilterPredicate("height", FilterOperator.LESS_THAN_OR_EQUAL, maxHeight);

  Filter invalidFilter = CompositeFilterOperator.and(birthYearMinFilter, heightMaxFilter);

  Query q = new Query("Person").setFilter(invalidFilter);
  // [END gae_java8_datastore_inequality_filters_one_property_invalid]

  // Note: The local devserver behavior is different than the production
  // version of Cloud Datastore, so there aren't any assertions we can make
  // in this test.  The query appears to work with the local test runner,
  // but will fail in production.
}
 

@Test
public void queryRestrictions_compositeFilter_returnsMatchedEntities() throws Exception {
  // Arrange
  Entity a = new Entity("Person", "a");
  a.setProperty("birthYear", 1930);
  Entity b = new Entity("Person", "b");
  b.setProperty("birthYear", 1960);
  Entity c = new Entity("Person", "c");
  c.setProperty("birthYear", 1990);
  datastore.put(ImmutableList.<Entity>of(a, b, c));

  // Act
  long minBirthYear = 1940;
  long maxBirthYear = 1980;
  // [START gae_java8_datastore_inequality_filters_one_property_valid_1]
  Filter birthYearMinFilter =
      new FilterPredicate("birthYear", FilterOperator.GREATER_THAN_OR_EQUAL, minBirthYear);

  Filter birthYearMaxFilter =
      new FilterPredicate("birthYear", FilterOperator.LESS_THAN_OR_EQUAL, maxBirthYear);

  Filter birthYearRangeFilter =
      CompositeFilterOperator.and(birthYearMinFilter, birthYearMaxFilter);

  Query q = new Query("Person").setFilter(birthYearRangeFilter);
  // [END gae_java8_datastore_inequality_filters_one_property_valid_1]

  // Assert
  List<Entity> results =
      datastore.prepare(q.setKeysOnly()).asList(FetchOptions.Builder.withDefaults());
  assertWithMessage("query results").that(results).containsExactly(b);
}
 

public Entity getMarker(String marker) {
    DatastoreService service = DatastoreServiceFactory.getDatastoreService();
    FilterPredicate testRunFilter = new FilterPredicate(TEST_RUN_ID, FilterOperator.EQUAL, testRunId);
    FilterPredicate markerFilter = new FilterPredicate(MARKER, FilterOperator.EQUAL, marker);
    CompositeFilter filter = CompositeFilterOperator.and(testRunFilter, markerFilter);
    Query query = new Query(entityName).setFilter(filter);
    return service.prepare(query).asSingleEntity();
}
 

@Test
public void queryRestrictions_compositeEqualFilter_returnsMatchedEntities() throws Exception {
  // Arrange
  Entity a = new Entity("Person", "a");
  a.setProperty("birthYear", 1930);
  a.setProperty("city", "Somewhere");
  a.setProperty("lastName", "Someone");
  Entity b = new Entity("Person", "b");
  b.setProperty("birthYear", 1960);
  b.setProperty("city", "Somewhere");
  b.setProperty("lastName", "Someone");
  Entity c = new Entity("Person", "c");
  c.setProperty("birthYear", 1990);
  c.setProperty("city", "Somewhere");
  c.setProperty("lastName", "Someone");
  Entity d = new Entity("Person", "d");
  d.setProperty("birthYear", 1960);
  d.setProperty("city", "Nowhere");
  d.setProperty("lastName", "Someone");
  Entity e = new Entity("Person", "e");
  e.setProperty("birthYear", 1960);
  e.setProperty("city", "Somewhere");
  e.setProperty("lastName", "Noone");
  datastore.put(ImmutableList.<Entity>of(a, b, c, d, e));
  long minBirthYear = 1940;
  long maxBirthYear = 1980;
  String targetCity = "Somewhere";
  String targetLastName = "Someone";

  // [START gae_java8_datastore_inequality_filters_one_property_valid_2]
  Filter lastNameFilter = new FilterPredicate("lastName", FilterOperator.EQUAL, targetLastName);

  Filter cityFilter = new FilterPredicate("city", FilterOperator.EQUAL, targetCity);

  Filter birthYearMinFilter =
      new FilterPredicate("birthYear", FilterOperator.GREATER_THAN_OR_EQUAL, minBirthYear);

  Filter birthYearMaxFilter =
      new FilterPredicate("birthYear", FilterOperator.LESS_THAN_OR_EQUAL, maxBirthYear);

  Filter validFilter =
      CompositeFilterOperator.and(
          lastNameFilter, cityFilter, birthYearMinFilter, birthYearMaxFilter);

  Query q = new Query("Person").setFilter(validFilter);
  // [END gae_java8_datastore_inequality_filters_one_property_valid_2]

  // Assert
  List<Entity> results =
      datastore.prepare(q.setKeysOnly()).asList(FetchOptions.Builder.withDefaults());
  assertWithMessage("query results").that(results).containsExactly(b);
}
 

private CompositeFilter getTestMethodFilter(String testMethodTag) {
    FilterPredicate testRunFilter = new FilterPredicate(TEST_RUN_ID, FilterOperator.EQUAL, testRunId);
    FilterPredicate method = new FilterPredicate(TEST_METHOD_TAG, FilterOperator.EQUAL, testMethodTag);
    return CompositeFilterOperator.and(testRunFilter, method);
}