Examples of com.amazonaws.services.dynamodb.model.KeySchema

Package com.amazonaws.services.dynamodb.model

Examples of com.amazonaws.services.dynamodb.model.KeySchema

com.amazonaws.services.dynamodb.model.KeySchema

The KeySchema identifies the primary key as a one attribute primary key (hash) or a composite two attribute (hash-and-range) primary key. Single attribute primary keys have one index value: a HashKeyElement . A composite hash-and-range primary key contains two attribute values: a HashKeyElement and a RangeKeyElement .

    }


    @Test
    public void putItemWithHashKeyAndRangeKey()
    {
        KeySchema schema =
                new KeySchema(
                    new KeySchemaElement().withAttributeName("hashCode").withAttributeType(ScalarAttributeType.S)
                );
        schema.setRangeKeyElement(new KeySchemaElement().withAttributeName(
                "rangeCode").withAttributeType(ScalarAttributeType.S));
        createTable(hashRangeTableName, schema);


        TestClassWithHashRangeKey value = new TestClassWithHashRangeKey();
        value.setHashCode("hash1");

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    }


    @Test
    public void putItemWithHashKeyAndRangeKeyOverwriteItem()
    {
        KeySchema schema =
                new KeySchema(
                    new KeySchemaElement().withAttributeName("hashCode").withAttributeType(ScalarAttributeType.S)
                );
        schema.setRangeKeyElement(new KeySchemaElement().withAttributeName(
                "rangeCode").withAttributeType(ScalarAttributeType.S));
    try {
      createTable(hashRangeTableName, schema);
    } catch (ResourceInUseException riue) {
      // The table is already created

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    }


    @Test
    public void getUnknownHashItemTest()
    {
    KeySchema schema = new KeySchema(new KeySchemaElement().withAttributeName("code").withAttributeType(ScalarAttributeType.S));
    createTable(hashTableName, schema);


        String code = "hash1x";
        TestClassWithHashKey value = mapper.load(TestClassWithHashKey.class, code);
        Assert.assertNull("Value should not be found.", value);

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    }


    @Test
    public void getUnknownHashRangeItemTest()
    {
    KeySchema schema = new KeySchema(new KeySchemaElement().withAttributeName("hashCode").withAttributeType(ScalarAttributeType.S));
    schema.setRangeKeyElement(new KeySchemaElement().withAttributeName("rangeCode").withAttributeType(ScalarAttributeType.S));
    createTable(hashRangeTableName, schema);


        String hashCode = "hash2x";
        String rangeCode = "range2";
        TestClassWithHashRangeKey value = mapper.load(TestClassWithHashRangeKey.class, hashCode, rangeCode);

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        Assert.assertNull("Value2 should not be found.", value2);
    }


  @Test
  public void scanIndexForwardFalseTest() {
    KeySchema schema = new KeySchema(new KeySchemaElement().withAttributeName("hashCode").withAttributeType(ScalarAttributeType.S));
    schema.setRangeKeyElement(new KeySchemaElement().withAttributeName("rangeCode").withAttributeType(ScalarAttributeType.S));
    createTable(hashRangeTableName, schema);


    {
      TestClassWithHashRangeKey c = new TestClassWithHashRangeKey();
      c.setHashCode("code");

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    Assert.assertEquals("second", res.getStringData());
  }


  @Test
  public void limitTest() {
    KeySchema schema = new KeySchema(new KeySchemaElement().withAttributeName("hashCode").withAttributeType(ScalarAttributeType.S));
    schema.setRangeKeyElement(new KeySchemaElement().withAttributeName("rangeCode").withAttributeType(ScalarAttributeType.S));
    createTable(hashRangeTableName, schema);


    for (int i = 0; i < 10; i++) {
      TestClassWithHashRangeKey c = new TestClassWithHashRangeKey();
      c.setHashCode("code");

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    Assert.assertEquals(10, mapper.query(TestClassWithHashRangeKey.class, new DynamoDBQueryExpression(new AttributeValue("code")).withLimit(20)).size());
  }


  @Test
  public void utf8Test() {
    KeySchema schema = new KeySchema(new KeySchemaElement().withAttributeName("code").withAttributeType(ScalarAttributeType.S));
    createTable(hashTableName, schema);


    TestClassWithHashKey value = new TestClassWithHashKey();
    value.setCode("éáűőúöüóí");
    value.setStringData("űáéúőóüöí");

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    }


    @Test
    public void queryWithHashKey() {
        // Setup table with items
        KeySchema schema = new KeySchema(new KeySchemaElement().withAttributeName("id").withAttributeType(ScalarAttributeType.S));
        createTable(tableName, schema);
        AttributeValue hashKey = createStringAttribute();
        getClient().putItem(new PutItemRequest().withItem(createGenericItem()).withTableName(tableName));
        getClient().putItem(new PutItemRequest().withItem(createGenericItem(hashKey)).withTableName(tableName));
        getClient().putItem(new PutItemRequest().withItem(createGenericItem()).withTableName(tableName));

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            Assert.assertEquals(item.get("range").getS(), "Range2");
        }
    }


    private AttributeValue setupTableWithSeveralItems() {
        KeySchema schema = new KeySchema()
                .withHashKeyElement(new KeySchemaElement().withAttributeName("id").withAttributeType(ScalarAttributeType.S))
                .withRangeKeyElement(new KeySchemaElement().withAttributeName("range").withAttributeType(ScalarAttributeType.S));
        createTable(tableName, schema);


        AttributeValue hashKey1 = createStringAttribute();

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