code: public Future<DeleteItemResult> deleteItemAsync(final DeleteItemRequest deleteItemRequest) 
              throws AmazonServiceException, AmazonClientException {
          return executorService.submit(new Callable<DeleteItemResult>() {
              public DeleteItemResult call() throws Exception {
                  return deleteItem(deleteItemRequest);
  		    }
  		});
      }
docs: <p>
  Deletes a single item in a table by primary key.
  </p>
  <p>
  You can perform a conditional delete operation that deletes the item
  if it exists, or if it has an expected attribute value.
  </p>
  
  @param deleteItemRequest Container for the necessary parameters to
  execute the DeleteItem operation on AmazonDynamoDB.
  
  @return A Java Future object containing the response from the
  DeleteItem service method, as returned by AmazonDynamoDB.
  
  @throws AmazonClientException
  If any internal errors are encountered inside the client while
  attempting to make the request or handle the response.  For example
  if a network connection is not available.
  @throws AmazonServiceException
  If an error response is returned by AmazonDynamoDB indicating
  either a problem with the data in the request, or a server side issue.