public static interface DynamoDBMapperConfig.BatchWriteRetryStrategy
DynamoDBMapper#batchWrite takes arbitrary number of save/delete requests
and breaks them into smaller chunks that can be accepted by the service
API. Each chunk will be sent to DynamoDB via the BatchWriteItem API, and
if it fails because the table's provisioned throughput is exceeded or an
internal processing failure occurs, the failed requests are returned in
the UnprocessedItems response parameter. This interface allows you to
control the retry strategy when such scenario occurs.