| AttributeValue | Represents the data for an attribute. Each attribute value is described as a name-value pair. The name is the data type, and the value is the data itself. For more information, see Data Types in the Amazon DynamoDB Developer Guide. |
| AttributeValueUpdate | For the UpdateItem operation, represents the attributes to be modified, the action to perform on each, and the new value for each. You cannot use UpdateItem to update any primary key attributes. Instead, you will need to delete the item, and then use PutItem to create a new item with new attributes. Attribute values cannot be null; string and binary type attributes must have lengths greater than zero; and set type attributes must not be empty. Requests with empty values will be rejected with a ValidationException exception. |
| Capacity | Represents the amount of provisioned throughput capacity consumed on a table or an index. |
| ConsumedCapacity | The capacity units consumed by an operation. The data returned includes the total provisioned throughput consumed, along with statistics for the table and any indexes involved in the operation. ConsumedCapacity is only returned if the request asked for it. For more information, see Provisioned Throughput in the Amazon DynamoDB Developer Guide. |
| DeleteItemInput | Represents the input of a DeleteItem operation. |
| DeleteItemOutput | Represents the output of a DeleteItem operation. |
| ExpectedAttributeValue | Represents a condition to be compared with an attribute value. This condition can be used with DeleteItem, PutItem, or UpdateItem operations; if the comparison evaluates to true, the operation succeeds; if not, the operation fails. You can use ExpectedAttributeValue in one of two different ways: -
Use AttributeValueList to specify one or more values to compare against an attribute. Use ComparisonOperator to specify how you want to perform the comparison. If the comparison evaluates to true, then the conditional operation succeeds. -
Use Value to specify a value that DynamoDB will compare against an attribute. If the values match, then ExpectedAttributeValue evaluates to true and the conditional operation succeeds. Optionally, you can also set Exists to false, indicating that you do not expect to find the attribute value in the table. In this case, the conditional operation succeeds only if the comparison evaluates to false. Value and Exists are incompatible with AttributeValueList and ComparisonOperator. Note that if you use both sets of parameters at once, DynamoDB will return a ValidationException exception. |
| GetItemInput | Represents the input of a GetItem operation. |
| GetItemOutput | Represents the output of a GetItem operation. |
| ItemCollectionMetrics | Information about item collections, if any, that were affected by the operation. ItemCollectionMetrics is only returned if the request asked for it. If the table does not have any local secondary indexes, this information is not returned in the response. |
| ListTablesInput | Represents the input of a ListTables operation. |
| ListTablesOutput | |
| PutItemInput | Represents the input of a PutItem operation. |
| PutItemOutput | |
| UpdateItemInput | Represents the input of an UpdateItem operation. |
| UpdateItemOutput | Represents the output of an UpdateItem operation. |