Пример #1
0
  @Test
  public void deleteHashRangeItemTest() {
    putItemWithHashKeyAndRangeKey();
    putItemWithHashKeyAndRangeKeyOverwriteItem();

    String hashCode = "hash2";
    String rangeCode = "range2";
    TestClassWithHashRangeKey value =
        mapper.load(TestClassWithHashRangeKey.class, hashCode, rangeCode);
    Assert.assertNotNull("Value not found.", value);
    Assert.assertEquals("Wrong hashCode.", hashCode, value.getHashCode());
    Assert.assertEquals("Wrong rangeCode.", rangeCode, value.getRangeCode());
    Assert.assertEquals("Wrong stringData.", "string2b", value.getStringData());
    Assert.assertEquals("Wrong intData.", 22, value.getIntData());
    Assert.assertEquals(
        "Wrong stringSetData.",
        set("stringSetVal2b1", "stringSetVal2b2"),
        value.getStringSetData());
    Assert.assertEquals("Wrong numberSetData.", set(5, 6), value.getNumberSetData());

    mapper.delete(value);

    TestClassWithHashRangeKey value2 =
        mapper.load(TestClassWithHashRangeKey.class, hashCode, rangeCode);
    Assert.assertNull("Value2 should not be found.", value2);
  }
Пример #2
0
  private void deleteNodeHistoryItem(String nid, String time) {
    DynamoDBMapperConfig config =
        new DynamoDBMapperConfig(DynamoDBMapperConfig.ConsistentReads.CONSISTENT);
    NodeHistory updatedItem;
    NodeHistory deletedItem;

    if (time != null) {
      updatedItem = mapper.load(NodeHistory.class, nid, time, config);
      mapper.delete(updatedItem);
      deletedItem =
          mapper.load(NodeHistory.class, updatedItem.getNodeID(), updatedItem.getTime(), config);
    } else {
      updatedItem = mapper.load(NodeHistory.class, nid, config);
      mapper.delete(updatedItem);
      deletedItem = mapper.load(NodeHistory.class, updatedItem.getNodeID(), config);
    }

    if (deletedItem == null) System.out.println("Done - The item is deleted.");
    else System.out.println("Fail - The item is still remained.");
  }
Пример #3
0
  /*
   * Deletes the specified user and all of its attribute/value pairs.
   */
  public static void deleteUser(UserPreference deleteUserPreference) {

    AmazonDynamoDBClient ddb = LoginActivity.clientManager.ddb();
    DynamoDBMapper mapper = new DynamoDBMapper(ddb);

    try {
      mapper.delete(deleteUserPreference);

    } catch (AmazonServiceException ex) {
      LoginActivity.clientManager.wipeCredentialsOnAuthError(ex);
    }
  }
  public void removeItemFromCart(Long cartId) {
    DynamoDBMapper mapper = this.conn.getMapper();
    DynamoDBScanExpression scanExpression = new DynamoDBScanExpression();
    Map<String, Condition> scanFilter = new HashMap<String, Condition>();
    Condition scanCondition =
        new Condition()
            .withComparisonOperator(ComparisonOperator.EQ.toString())
            .withAttributeValueList(new AttributeValue().withN(cartId.toString()));

    scanFilter.put("CartId", scanCondition);

    scanExpression.setScanFilter(scanFilter);
    System.out.println("Going to retrieve item.");
    PaginatedScanList<CartItem> items = mapper.scan(CartItem.class, scanExpression);
    System.out.println("Number of items retrived. " + items.size());
    System.out.println("Going to remove a cartItem with productId: " + items.get(0).getProductId());
    mapper.delete(items.get(0));
  }
Пример #5
0
  @Test
  public void deleteHashItemTest() {
    putItemWithHashKey();
    putItemWithHashKeyOverwriteItem();

    String code = "hash1";
    TestClassWithHashKey value = mapper.load(TestClassWithHashKey.class, code);
    Assert.assertNotNull("Value not found.", value);
    Assert.assertEquals("Wrong code.", code, value.getCode());
    Assert.assertEquals("Wrong stringData.", "string1", value.getStringData());
    Assert.assertEquals("Wrong intData.", 1, value.getIntData());
    Assert.assertEquals(
        "Wrong stringSetData.", set("stringSetVal1", "stringSetVal2"), value.getStringSetData());
    Assert.assertEquals("Wrong numberSetData.", set(1, 2), value.getNumberSetData());

    mapper.delete(value);

    TestClassWithHashKey value2 = mapper.load(TestClassWithHashKey.class, code);
    Assert.assertNull("Value2 should not be found.", value2);
  }