/// <summary>
/// Initiates the asynchronous execution to get the next set of results from DynamoDB.
/// </summary>
/// <param name="callback">An AsyncCallback delegate that is invoked when the operation completes.</param>
/// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
/// procedure using the AsyncState property.</param>
///
/// <returns>An IAsyncResult that can be used to poll or wait for results, or both; this value is also needed when invoking EndGetNextSet
/// operation.</returns>
public IAsyncResult BeginGetNextSet(AsyncCallback callback, object state)
{
return(DynamoDBAsyncExecutor.BeginOperation(() =>
{
var documents = DocumentSearch.GetNextSetHelper(true);
List <T> items = SourceContext.FromDocumentsHelper <T>(documents, Config).ToList();
return items;
}, callback, state));
}
/// <summary>
/// Initiates the asynchronous execution to get the next set of results from DynamoDB.
/// List<T> is returned in the result.Response
/// </summary>
/// <param name="callback">An AmazonDynamoCallback delegate that is invoked when the operation completes.</param>
/// <param name="state">A user-defined state object that is passed to the callback procedure. Retrieve this object from within the callback
/// procedure using the AsyncState property.</param>
///
/// <returns>void</returns>
public void GetNextSetAsync(AmazonDynamoCallback <List <T> > callback, object state)
{
DynamoDBAsyncExecutor.AsyncOperation(() =>
{
var documents = DocumentSearch.GetNextSetHelper(true);
List <T> items = SourceContext.FromDocumentsHelper <T>(documents, Config).ToList();
return(items);
}, "GetNextSetAsync", callback, state);
}
/// <summary>
/// Initiates the asynchronous execution to get the next set of results from DynamoDB.
/// </summary>
/// <param name="cancellationToken">Token which can be used to cancel the task.</param>
/// <returns>
/// A Task that can be used to poll or wait for results, or both.
/// Results will include the next set of result items from DynamoDB.
/// </returns>
public Task <List <T> > GetNextSetAsync(CancellationToken cancellationToken = default(CancellationToken))
{
return(AsyncRunner.Run(() =>
{
var documents = DocumentSearch.GetNextSetHelper(true);
List <T> items = SourceContext.FromDocuments <T>(documents).ToList();
return items;
}, cancellationToken));
}
/// <summary>
/// Initiates the asynchronous execution to get the next set of results from DynamoDB.
/// </summary>
/// <param name="callback">The callback that will be invoked when the asynchronous operation completes.</param>
/// <param name="asyncOptions">An instance of AsyncOptions that specifies how the async method should be executed.</param>
public void GetNextSetAsync(AmazonDynamoDBCallback <List <T> > callback, AsyncOptions asyncOptions = null)
{
asyncOptions = asyncOptions ?? new AsyncOptions();
DynamoDBAsyncExecutor.ExecuteAsync <List <T> >(
() =>
{
var documents = DocumentSearch.GetNextSetHelper(true);
List <T> items = SourceContext.FromDocumentsHelper <T>(documents, Config).ToList();
return(items);
},
asyncOptions,
callback);
}
