code: public Future<GetItemResult> getItemAsync(
              final GetItemRequest getItemRequest,
              final AsyncHandler<GetItemRequest, GetItemResult> asyncHandler)
                      throws AmazonServiceException, AmazonClientException {
          return executorService.submit(new Callable<GetItemResult>() {
              public GetItemResult call() throws Exception {
              	GetItemResult result;
                  try {
              		result = getItem(getItemRequest);
              	} catch (Exception ex) {
              	    asyncHandler.onError(ex);
      				throw ex;
              	}
              	asyncHandler.onSuccess(getItemRequest, result);
                 	return result;
  		    }
  		});
      }
docs: <p>
  Retrieves a set of Attributes for an item that matches the primary
  key.
  </p>
  <p>
  The <code>GetItem</code> operation provides an eventually-consistent
  read by default. If eventually-consistent reads are not acceptable for
  your application, use <code>ConsistentRead</code> . Although this
  operation might take longer than a standard read, it always returns
  the last updated value.
  </p>
  
  @param getItemRequest Container for the necessary parameters to
  execute the GetItem operation on AmazonDynamoDB.
  @param asyncHandler Asynchronous callback handler for events in the
  life-cycle of the request. Users could provide the implementation of
  the four callback methods in this interface to process the operation
  result or handle the exception.
  
  @return A Java Future object containing the response from the GetItem
  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.