Examples with Scan com.scalar.db.api.Scan used on opensource projects

Example 6 with Scan

use of com.scalar.db.api.Scan in project scalardb by scalar-labs.

the class StorageMultipleClusteringKeyScanIntegrationTestBase method scan_WithFirstClusteringKeyStartRange_ShouldReturnProperResult.

private void scan_WithFirstClusteringKeyStartRange_ShouldReturnProperResult(List<ClusteringKey> clusteringKeys, DataType firstClusteringKeyType, Order firstClusteringOrder, boolean startInclusive, OrderingType orderingType, boolean withLimit) throws ExecutionException, IOException {
    // Arrange
    ClusteringKey startClusteringKey;
    if (firstClusteringKeyType == DataType.BOOLEAN) {
        startClusteringKey = new ClusteringKey(clusteringKeys.get(getFirstClusteringKeyIndex(0, DataType.INT)).first);
    } else {
        startClusteringKey = new ClusteringKey(clusteringKeys.get(getFirstClusteringKeyIndex(1, DataType.INT)).first);
    }
    List<ClusteringKey> expected = getExpected(clusteringKeys, startClusteringKey, startInclusive, null, null, orderingType);
    int limit = getLimit(withLimit, expected);
    if (limit > 0) {
        expected = expected.subList(0, limit);
    }
    Scan scan = getScan(firstClusteringKeyType, firstClusteringOrder, DataType.INT, Order.ASC, startClusteringKey, startInclusive, null, null, orderingType, limit);
    // Act
    List<Result> actual = scanAll(scan);
    // Assert
    assertScanResult(actual, expected, description(firstClusteringKeyType, firstClusteringOrder, null, null, startInclusive, null, orderingType, withLimit));
}

Example 7 with Scan

use of com.scalar.db.api.Scan in project scalardb by scalar-labs.

the class StorageMultipleClusteringKeyScanIntegrationTestBase method scan_WithFirstClusteringKeyRangeWithMinAndMaxValue_ShouldReturnProperResult.

private void scan_WithFirstClusteringKeyRangeWithMinAndMaxValue_ShouldReturnProperResult(List<ClusteringKey> clusteringKeys, DataType firstClusteringKeyType, Order firstClusteringOrder, boolean startInclusive, boolean endInclusive, OrderingType orderingType, boolean withLimit) throws ExecutionException, IOException {
    // Arrange
    ClusteringKey startClusteringKey = new ClusteringKey(getMinValue(FIRST_CLUSTERING_KEY, firstClusteringKeyType));
    ClusteringKey endClusteringKey = new ClusteringKey(getMaxValue(FIRST_CLUSTERING_KEY, firstClusteringKeyType));
    List<ClusteringKey> expected = getExpected(clusteringKeys, startClusteringKey, startInclusive, endClusteringKey, endInclusive, orderingType);
    int limit = getLimit(withLimit, expected);
    if (limit > 0) {
        expected = expected.subList(0, limit);
    }
    Scan scan = getScan(firstClusteringKeyType, firstClusteringOrder, DataType.INT, Order.ASC, startClusteringKey, startInclusive, endClusteringKey, endInclusive, orderingType, limit);
    // Act
    List<Result> actual = scanAll(scan);
    // Assert
    assertScanResult(actual, expected, description(firstClusteringKeyType, firstClusteringOrder, null, null, startInclusive, endInclusive, orderingType, withLimit));
}

Example 8 with Scan

use of com.scalar.db.api.Scan in project scalardb by scalar-labs.

the class StorageIntegrationTestBase method scan_ScanWithLimitGiven_ShouldReturnGivenNumberOfResults.

@Test
public void scan_ScanWithLimitGiven_ShouldReturnGivenNumberOfResults() throws IOException, ExecutionException {
    // setup
    List<Put> puts = preparePuts();
    storage.mutate(Arrays.asList(puts.get(0), puts.get(1), puts.get(2)));
    Scan scan = new Scan(new Key(COL_NAME1, 0)).withOrdering(new Scan.Ordering(COL_NAME4, Scan.Ordering.Order.DESC)).withLimit(1);
    // exercise
    List<Result> actual = scanAll(scan);
    // verify
    assertThat(actual.size()).isEqualTo(1);
    assertThat(actual.get(0).getValue(COL_NAME4)).isEqualTo(Optional.of(new IntValue(COL_NAME4, 2)));
}

Example 9 with Scan

use of com.scalar.db.api.Scan in project scalardb by scalar-labs.

the class StorageIntegrationTestBase method mutate_PutAndDeleteGiven_ShouldUpdateAndDeleteRecordsProperly.

@Test
public void mutate_PutAndDeleteGiven_ShouldUpdateAndDeleteRecordsProperly() throws ExecutionException, IOException {
    // Arrange
    populateRecords();
    List<Put> puts = preparePuts();
    puts.get(1).withValue(COL_NAME3, Integer.MAX_VALUE);
    puts.get(2).withValue(COL_NAME3, Integer.MIN_VALUE);
    int pKey = 0;
    int cKey = 0;
    Delete delete = prepareDelete(pKey, cKey);
    Scan scan = new Scan(new Key(COL_NAME1, pKey));
    // Act
    assertThatCode(() -> storage.mutate(Arrays.asList(delete, puts.get(1), puts.get(2)))).doesNotThrowAnyException();
    // Assert
    List<Result> results = scanAll(scan);
    assertThat(results.size()).isEqualTo(2);
    assertThat(results.get(0).getValue(COL_NAME1).isPresent()).isTrue();
    assertThat(results.get(0).getValue(COL_NAME1).get().getAsInt()).isEqualTo(0);
    assertThat(results.get(0).getValue(COL_NAME3).isPresent()).isTrue();
    assertThat(results.get(0).getValue(COL_NAME3).get().getAsInt()).isEqualTo(Integer.MAX_VALUE);
    assertThat(results.get(1).getValue(COL_NAME1).isPresent()).isTrue();
    assertThat(results.get(1).getValue(COL_NAME1).get().getAsInt()).isEqualTo(0);
    assertThat(results.get(1).getValue(COL_NAME3).isPresent()).isTrue();
    assertThat(results.get(1).getValue(COL_NAME3).get().getAsInt()).isEqualTo(Integer.MIN_VALUE);
}

Example 10 with Scan

use of com.scalar.db.api.Scan in project scalardb by scalar-labs.

the class StorageIntegrationTestBase method scannerIterator_ScanWithPartitionKeyGiven_ShouldRetrieveCorrectResults.

@Test
public void scannerIterator_ScanWithPartitionKeyGiven_ShouldRetrieveCorrectResults() throws ExecutionException, IOException {
    // Arrange
    populateRecords();
    int pKey = 0;
    // Act
    Scan scan = new Scan(new Key(COL_NAME1, pKey));
    List<Result> actual = new ArrayList<>();
    Scanner scanner = storage.scan(scan);
    scanner.forEach(actual::add);
    scanner.close();
    // Assert
    assertThat(actual.size()).isEqualTo(3);
    assertThat(actual.get(0).getValue(COL_NAME1).isPresent()).isTrue();
    assertThat(actual.get(0).getValue(COL_NAME1).get().getAsInt()).isEqualTo(0);
    assertThat(actual.get(0).getValue(COL_NAME4).isPresent()).isTrue();
    assertThat(actual.get(0).getValue(COL_NAME4).get().getAsInt()).isEqualTo(0);
    assertThat(actual.get(1).getValue(COL_NAME1).isPresent()).isTrue();
    assertThat(actual.get(1).getValue(COL_NAME1).get().getAsInt()).isEqualTo(0);
    assertThat(actual.get(1).getValue(COL_NAME4).isPresent()).isTrue();
    assertThat(actual.get(1).getValue(COL_NAME4).get().getAsInt()).isEqualTo(1);
    assertThat(actual.get(2).getValue(COL_NAME1).isPresent()).isTrue();
    assertThat(actual.get(2).getValue(COL_NAME1).get().getAsInt()).isEqualTo(0);
    assertThat(actual.get(2).getValue(COL_NAME4).isPresent()).isTrue();
    assertThat(actual.get(2).getValue(COL_NAME4).get().getAsInt()).isEqualTo(2);
}