taskList. A decision task may be returned for any open workflow execution that is using the specified task list. The task includes a paginated view of the history of the workflow execution. The decider should use the workflow type and the history to determine how to properly handle the task.
This action initiates a long poll, where the service holds the HTTP connection open
and responds as soon a task becomes available. If no decision task is available in
the specified task list before the timeout of 60 seconds expires, an empty result
is returned. An empty result, in this context, means that a DecisionTask is returned,
but that the value of
taskToken is an empty string.
nextPageTokenreturned by the initial call. Note that you do not call
nextPageToken. Instead, call
You can use IAM policies to control this action's access to Amazon SWF resources as follows:
Resourceelement with the domain name to limit the action to only specified domains.
Actionelement to allow or deny permission to call this action.
taskList.nameparameter by using a Condition element with the
swf:taskList.namekey to allow the action to access only certain task lists.
If the caller does not have sufficient permissions to invoke the action, or the parameter values fall outside the specified constraints, the action fails. The associated event attribute's cause parameter will be set to OPERATION_NOT_PERMITTED. For details and example IAM policies, see Using IAM to Manage Access to Amazon SWF Workflows.
Version: (assembly version)
public class PollForDecisionTaskRequest : AmazonSimpleWorkflowRequest IRequestEvents
The PollForDecisionTaskRequest type exposes the following members
Gets and sets the property Domain.
The name of the domain containing the task lists to poll.
Gets and sets the property Identity.
Identity of the decider making the request, which is recorded in the DecisionTaskStarted event in the workflow history. This enables diagnostic tracing when problems arise. The form of this identity is user defined.
Gets and sets the property MaximumPageSize.
The maximum number of results that will be returned per call.
This is an upper limit only; the actual number of results returned per call may be fewer than the specified maximum.
Gets and sets the property NextPageToken.
Gets and sets the property ReverseOrder.
When set to
Gets and sets the property TaskList.
Specifies the task list to poll for decision tasks.
The specified string must not start or end with whitespace. It must not contain a
Supported in: 4.5, 4.0, 3.5
.NET for Windows Store apps:
Supported in: Windows 8