com.amazonaws.services.simpleworkflow

Interface AmazonSimpleWorkflow

All Known Subinterfaces:

AmazonSimpleWorkflowAsync

All Known Implementing Classes:

AbstractAmazonSimpleWorkflow, AbstractAmazonSimpleWorkflowAsync, AmazonSimpleWorkflowAsyncClient, AmazonSimpleWorkflowClient

public interface AmazonSimpleWorkflow

Interface for accessing Amazon SWF.

Note: Do not directly implement this interface, new methods are added to it regularly. Extend from AbstractAmazonSimpleWorkflow instead.

Amazon Simple Workflow Service

The Amazon Simple Workflow Service (Amazon SWF) makes it easy to build applications that use Amazon's cloud to coordinate work across distributed components. In Amazon SWF, a task represents a logical unit of work that is performed by a component of your workflow. Coordinating tasks in a workflow involves managing intertask dependencies, scheduling, and concurrency in accordance with the logical flow of the application.

Amazon SWF gives you full control over implementing tasks and coordinating them without worrying about underlying complexities such as tracking their progress and maintaining their state.

This documentation serves as reference only. For a broader overview of the Amazon SWF programming model, see the Amazon SWF Developer Guide.

Field Summary

Fields

Modifier and Type	Field and Description
static String	ENDPOINT_PREFIX The region metadata service name for computing region endpoints.

Method Summary

Modifier and Type	Method and Description
WorkflowExecutionCount	countClosedWorkflowExecutions(CountClosedWorkflowExecutionsRequest countClosedWorkflowExecutionsRequest) Returns the number of closed workflow executions within the given domain that meet the specified filtering criteria.
WorkflowExecutionCount	countOpenWorkflowExecutions(CountOpenWorkflowExecutionsRequest countOpenWorkflowExecutionsRequest) Returns the number of open workflow executions within the given domain that meet the specified filtering criteria.
PendingTaskCount	countPendingActivityTasks(CountPendingActivityTasksRequest countPendingActivityTasksRequest) Returns the estimated number of activity tasks in the specified task list.
PendingTaskCount	countPendingDecisionTasks(CountPendingDecisionTasksRequest countPendingDecisionTasksRequest) Returns the estimated number of decision tasks in the specified task list.
void	deprecateActivityType(DeprecateActivityTypeRequest deprecateActivityTypeRequest) Deprecates the specified activity type.
void	deprecateDomain(DeprecateDomainRequest deprecateDomainRequest) Deprecates the specified domain.
void	deprecateWorkflowType(DeprecateWorkflowTypeRequest deprecateWorkflowTypeRequest) Deprecates the specified workflow type.
ActivityTypeDetail	describeActivityType(DescribeActivityTypeRequest describeActivityTypeRequest) Returns information about the specified activity type.
DomainDetail	describeDomain(DescribeDomainRequest describeDomainRequest) Returns information about the specified domain, including description and status.
WorkflowExecutionDetail	describeWorkflowExecution(DescribeWorkflowExecutionRequest describeWorkflowExecutionRequest) Returns information about the specified workflow execution including its type and some statistics.
WorkflowTypeDetail	describeWorkflowType(DescribeWorkflowTypeRequest describeWorkflowTypeRequest) Returns information about the specified workflow type.
ResponseMetadata	getCachedResponseMetadata(AmazonWebServiceRequest request) Returns additional metadata for a previously executed successful request, typically used for debugging issues where a service isn't acting as expected.
History	getWorkflowExecutionHistory(GetWorkflowExecutionHistoryRequest getWorkflowExecutionHistoryRequest) Returns the history of the specified workflow execution.
ActivityTypeInfos	listActivityTypes(ListActivityTypesRequest listActivityTypesRequest) Returns information about all activities registered in the specified domain that match the specified name and registration status.
WorkflowExecutionInfos	listClosedWorkflowExecutions(ListClosedWorkflowExecutionsRequest listClosedWorkflowExecutionsRequest) Returns a list of closed workflow executions in the specified domain that meet the filtering criteria.
DomainInfos	listDomains(ListDomainsRequest listDomainsRequest) Returns the list of domains registered in the account.
WorkflowExecutionInfos	listOpenWorkflowExecutions(ListOpenWorkflowExecutionsRequest listOpenWorkflowExecutionsRequest) Returns a list of open workflow executions in the specified domain that meet the filtering criteria.
WorkflowTypeInfos	listWorkflowTypes(ListWorkflowTypesRequest listWorkflowTypesRequest) Returns information about workflow types in the specified domain.
ActivityTask	pollForActivityTask(PollForActivityTaskRequest pollForActivityTaskRequest) Used by workers to get an ActivityTask from the specified activity taskList.
DecisionTask	pollForDecisionTask(PollForDecisionTaskRequest pollForDecisionTaskRequest) Used by deciders to get a DecisionTask from the specified decision taskList.
ActivityTaskStatus	recordActivityTaskHeartbeat(RecordActivityTaskHeartbeatRequest recordActivityTaskHeartbeatRequest) Used by activity workers to report to the service that the ActivityTask represented by the specified taskToken is still making progress.
void	registerActivityType(RegisterActivityTypeRequest registerActivityTypeRequest) Registers a new activity type along with its configuration settings in the specified domain.
void	registerDomain(RegisterDomainRequest registerDomainRequest) Registers a new domain.
void	registerWorkflowType(RegisterWorkflowTypeRequest registerWorkflowTypeRequest) Registers a new workflow type and its configuration settings in the specified domain.
void	requestCancelWorkflowExecution(RequestCancelWorkflowExecutionRequest requestCancelWorkflowExecutionRequest) Records a WorkflowExecutionCancelRequested event in the currently running workflow execution identified by the given domain, workflowId, and runId.
void	respondActivityTaskCanceled(RespondActivityTaskCanceledRequest respondActivityTaskCanceledRequest) Used by workers to tell the service that the ActivityTask identified by the taskToken was successfully canceled.
void	respondActivityTaskCompleted(RespondActivityTaskCompletedRequest respondActivityTaskCompletedRequest) Used by workers to tell the service that the ActivityTask identified by the taskToken completed successfully with a result (if provided).
void	respondActivityTaskFailed(RespondActivityTaskFailedRequest respondActivityTaskFailedRequest) Used by workers to tell the service that the ActivityTask identified by the taskToken has failed with reason (if specified).
void	respondDecisionTaskCompleted(RespondDecisionTaskCompletedRequest respondDecisionTaskCompletedRequest) Used by deciders to tell the service that the DecisionTask identified by the taskToken has successfully completed.
void	setEndpoint(String endpoint) Overrides the default endpoint for this client ("swf.us-east-1.amazonaws.com").
void	setRegion(Region region) An alternative to setEndpoint(String), sets the regional endpoint for this client's service calls.
void	shutdown() Shuts down this client object, releasing any resources that might be held open.
void	signalWorkflowExecution(SignalWorkflowExecutionRequest signalWorkflowExecutionRequest) Records a WorkflowExecutionSignaled event in the workflow execution history and creates a decision task for the workflow execution identified by the given domain, workflowId and runId.
Run	startWorkflowExecution(StartWorkflowExecutionRequest startWorkflowExecutionRequest) Starts an execution of the workflow type in the specified domain using the provided workflowId and input data.
void	terminateWorkflowExecution(TerminateWorkflowExecutionRequest terminateWorkflowExecutionRequest) Records a WorkflowExecutionTerminated event and forces closure of the workflow execution identified by the given domain, runId, and workflowId.

Field Detail

ENDPOINT_PREFIX

static final String ENDPOINT_PREFIX

The region metadata service name for computing region endpoints. You can use this value to retrieve metadata (such as supported regions) of the service.

See Also:

RegionUtils.getRegionsForService(String), Constant Field Values

Method Detail

setEndpoint

void setEndpoint(String endpoint)

Overrides the default endpoint for this client ("swf.us-east-1.amazonaws.com"). Callers can use this method to control which AWS region they want to work with.

Callers can pass in just the endpoint (ex: "swf.us-east-1.amazonaws.com") or a full URL, including the protocol (ex: "swf.us-east-1.amazonaws.com"). If the protocol is not specified here, the default protocol from this client's ClientConfiguration will be used, which by default is HTTPS.

For more information on using AWS regions with the AWS SDK for Java, and a complete list of all available endpoints for all AWS services, see: http://developer.amazonwebservices.com/connect/entry.jspa?externalID=3912

This method is not threadsafe. An endpoint should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.

Parameters:

endpoint - The endpoint (ex: "swf.us-east-1.amazonaws.com") or a full URL, including the protocol (ex: "swf.us-east-1.amazonaws.com") of the region specific AWS endpoint this client will communicate with.

setRegion

void setRegion(Region region)

An alternative to setEndpoint(String), sets the regional endpoint for this client's service calls. Callers can use this method to control which AWS region they want to work with.

By default, all service endpoints in all regions use the https protocol. To use http instead, specify it in the ClientConfiguration supplied at construction.

This method is not threadsafe. A region should be configured when the client is created and before any service requests are made. Changing it afterwards creates inevitable race conditions for any service requests in transit or retrying.

Parameters:

region - The region this client will communicate with. See Region.getRegion(com.amazonaws.regions.Regions) for accessing a given region. Must not be null and must be a region where the service is available.

See Also:

Region.getRegion(com.amazonaws.regions.Regions), Region.createClient(Class, com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration), Region.isServiceSupported(String)

countClosedWorkflowExecutions

WorkflowExecutionCount countClosedWorkflowExecutions(CountClosedWorkflowExecutionsRequest countClosedWorkflowExecutionsRequest)

Returns the number of closed workflow executions within the given domain that meet the specified filtering criteria.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • tagFilter.tag: String constraint. The key is swf:tagFilter.tag.
  • typeFilter.name: String constraint. The key is swf:typeFilter.name.
  • typeFilter.version: String constraint. The key is swf:typeFilter.version.

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.

Parameters:

countClosedWorkflowExecutionsRequest -

Returns:

Result of the CountClosedWorkflowExecutions operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

countOpenWorkflowExecutions

WorkflowExecutionCount countOpenWorkflowExecutions(CountOpenWorkflowExecutionsRequest countOpenWorkflowExecutionsRequest)

Returns the number of open workflow executions within the given domain that meet the specified filtering criteria.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • tagFilter.tag: String constraint. The key is swf:tagFilter.tag.
  • typeFilter.name: String constraint. The key is swf:typeFilter.name.
  • typeFilter.version: String constraint. The key is swf:typeFilter.version.

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.

Parameters:

countOpenWorkflowExecutionsRequest -

Returns:

Result of the CountOpenWorkflowExecutions operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

countPendingActivityTasks

PendingTaskCount countPendingActivityTasks(CountPendingActivityTasksRequest countPendingActivityTasksRequest)

Returns the estimated number of activity tasks in the specified task list. The count returned is an approximation and is not guaranteed to be exact. If you specify a task list that no activity task was ever scheduled in then 0 will be returned.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the taskList.name parameter by using a Condition element with the swf:taskList.name key 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.

Parameters:

countPendingActivityTasksRequest -

Returns:

Result of the CountPendingActivityTasks operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

countPendingDecisionTasks

PendingTaskCount countPendingDecisionTasks(CountPendingDecisionTasksRequest countPendingDecisionTasksRequest)

Returns the estimated number of decision tasks in the specified task list. The count returned is an approximation and is not guaranteed to be exact. If you specify a task list that no decision task was ever scheduled in then 0 will be returned.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the taskList.name parameter by using a Condition element with the swf:taskList.name key 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.

Parameters:

countPendingDecisionTasksRequest -

Returns:

Result of the CountPendingDecisionTasks operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

deprecateActivityType

void deprecateActivityType(DeprecateActivityTypeRequest deprecateActivityTypeRequest)

Deprecates the specified activity type. After an activity type has been deprecated, you cannot create new tasks of that activity type. Tasks of this type that were scheduled before the type was deprecated will continue to run.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • activityType.name: String constraint. The key is swf:activityType.name.
  • activityType.version: String constraint. The key is swf:activityType.version.

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.

Parameters:

deprecateActivityTypeRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

TypeDeprecatedException - Returned when the specified activity or workflow type was already deprecated.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

deprecateDomain

void deprecateDomain(DeprecateDomainRequest deprecateDomainRequest)

Deprecates the specified domain. After a domain has been deprecated it cannot be used to create new workflow executions or register new types. However, you can still use visibility actions on this domain. Deprecating a domain also deprecates all activity and workflow types registered in the domain. Executions that were started before the domain was deprecated will continue to run.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

deprecateDomainRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

DomainDeprecatedException - Returned when the specified domain has been deprecated.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

deprecateWorkflowType

void deprecateWorkflowType(DeprecateWorkflowTypeRequest deprecateWorkflowTypeRequest)

Deprecates the specified workflow type. After a workflow type has been deprecated, you cannot create new executions of that type. Executions that were started before the type was deprecated will continue to run. A deprecated workflow type may still be used when calling visibility actions.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • workflowType.name: String constraint. The key is swf:workflowType.name.
  • workflowType.version: String constraint. The key is swf:workflowType.version.

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.

Parameters:

deprecateWorkflowTypeRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

TypeDeprecatedException - Returned when the specified activity or workflow type was already deprecated.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

describeActivityType

ActivityTypeDetail describeActivityType(DescribeActivityTypeRequest describeActivityTypeRequest)

Returns information about the specified activity type. This includes configuration settings provided when the type was registered and other general information about the type.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • activityType.name: String constraint. The key is swf:activityType.name.
  • activityType.version: String constraint. The key is swf:activityType.version.

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.

Parameters:

describeActivityTypeRequest -

Returns:

Result of the DescribeActivityType operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

describeDomain

DomainDetail describeDomain(DescribeDomainRequest describeDomainRequest)

Returns information about the specified domain, including description and status.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

describeDomainRequest -

Returns:

Result of the DescribeDomain operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

describeWorkflowExecution

WorkflowExecutionDetail describeWorkflowExecution(DescribeWorkflowExecutionRequest describeWorkflowExecutionRequest)

Returns information about the specified workflow execution including its type and some statistics.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

describeWorkflowExecutionRequest -

Returns:

Result of the DescribeWorkflowExecution operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

describeWorkflowType

WorkflowTypeDetail describeWorkflowType(DescribeWorkflowTypeRequest describeWorkflowTypeRequest)

Returns information about the specified workflow type. This includes configuration settings specified when the type was registered and other information such as creation date, current status, and so on.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • workflowType.name: String constraint. The key is swf:workflowType.name.
  • workflowType.version: String constraint. The key is swf:workflowType.version.

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.

Parameters:

describeWorkflowTypeRequest -

Returns:

Result of the DescribeWorkflowType operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

getWorkflowExecutionHistory

History getWorkflowExecutionHistory(GetWorkflowExecutionHistoryRequest getWorkflowExecutionHistoryRequest)

Returns the history of the specified workflow execution. The results may be split into multiple pages. To retrieve subsequent pages, make the call again using the nextPageToken returned by the initial call.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

getWorkflowExecutionHistoryRequest -

Returns:

Result of the GetWorkflowExecutionHistory operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

listActivityTypes

ActivityTypeInfos listActivityTypes(ListActivityTypesRequest listActivityTypesRequest)

Returns information about all activities registered in the specified domain that match the specified name and registration status. The result includes information like creation date, current status of the activity, etc. The results may be split into multiple pages. To retrieve subsequent pages, make the call again using the nextPageToken returned by the initial call.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

listActivityTypesRequest -

Returns:

Result of the ListActivityTypes operation returned by the service.

Throws:

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

listClosedWorkflowExecutions

WorkflowExecutionInfos listClosedWorkflowExecutions(ListClosedWorkflowExecutionsRequest listClosedWorkflowExecutionsRequest)

Returns a list of closed workflow executions in the specified domain that meet the filtering criteria. The results may be split into multiple pages. To retrieve subsequent pages, make the call again using the nextPageToken returned by the initial call.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • tagFilter.tag: String constraint. The key is swf:tagFilter.tag.
  • typeFilter.name: String constraint. The key is swf:typeFilter.name.
  • typeFilter.version: String constraint. The key is swf:typeFilter.version.

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.

Parameters:

listClosedWorkflowExecutionsRequest -

Returns:

Result of the ListClosedWorkflowExecutions operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

listDomains

DomainInfos listDomains(ListDomainsRequest listDomainsRequest)

Returns the list of domains registered in the account. The results may be split into multiple pages. To retrieve subsequent pages, make the call again using the nextPageToken returned by the initial call.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains. The element must be set to arn:aws:swf::AccountID:domain/*, where AccountID is the account ID, with no dashes.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

listDomainsRequest -

Returns:

Result of the ListDomains operation returned by the service.

Throws:

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

listOpenWorkflowExecutions

WorkflowExecutionInfos listOpenWorkflowExecutions(ListOpenWorkflowExecutionsRequest listOpenWorkflowExecutionsRequest)

Returns a list of open workflow executions in the specified domain that meet the filtering criteria. The results may be split into multiple pages. To retrieve subsequent pages, make the call again using the nextPageToken returned by the initial call.

This operation is eventually consistent. The results are best effort and may not exactly reflect recent updates and changes.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • tagFilter.tag: String constraint. The key is swf:tagFilter.tag.
  • typeFilter.name: String constraint. The key is swf:typeFilter.name.
  • typeFilter.version: String constraint. The key is swf:typeFilter.version.

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.

Parameters:

listOpenWorkflowExecutionsRequest -

Returns:

Result of the ListOpenWorkflowExecutions operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

listWorkflowTypes

WorkflowTypeInfos listWorkflowTypes(ListWorkflowTypesRequest listWorkflowTypesRequest)

Returns information about workflow types in the specified domain. The results may be split into multiple pages that can be retrieved by making the call repeatedly.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

listWorkflowTypesRequest -

Returns:

Result of the ListWorkflowTypes operation returned by the service.

Throws:

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

pollForActivityTask

ActivityTask pollForActivityTask(PollForActivityTaskRequest pollForActivityTaskRequest)

Used by workers to get an ActivityTask from the specified activity taskList. This initiates a long poll, where the service holds the HTTP connection open and responds as soon as a task becomes available. The maximum time the service holds on to the request before responding is 60 seconds. If no task is available within 60 seconds, the poll will return an empty result. An empty result, in this context, means that an ActivityTask is returned, but that the value of taskToken is an empty string. If a task is returned, the worker should use its type to identify and process it correctly.

Workers should set their client side socket timeout to at least 70 seconds (10 seconds higher than the maximum time service may hold the poll request).

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the taskList.name parameter by using a Condition element with the swf:taskList.name key 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.

Parameters:

pollForActivityTaskRequest -

Returns:

Result of the PollForActivityTask operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

LimitExceededException - Returned by any operation if a system imposed limitation has been reached. To address this fault you should either clean up unused resources or increase the limit by contacting AWS.

pollForDecisionTask

DecisionTask pollForDecisionTask(PollForDecisionTaskRequest pollForDecisionTaskRequest)

Used by deciders to get a DecisionTask from the specified decision 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.

Deciders should set their client-side socket timeout to at least 70 seconds (10 seconds higher than the timeout). Because the number of workflow history events for a single workflow execution might be very large, the result returned might be split up across a number of pages. To retrieve subsequent pages, make additional calls to PollForDecisionTask using the nextPageToken returned by the initial call. Note that you do not call GetWorkflowExecutionHistory with this nextPageToken. Instead, call PollForDecisionTask again.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the taskList.name parameter by using a Condition element with the swf:taskList.name key 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.

Parameters:

pollForDecisionTaskRequest -

Returns:

Result of the PollForDecisionTask operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

LimitExceededException - Returned by any operation if a system imposed limitation has been reached. To address this fault you should either clean up unused resources or increase the limit by contacting AWS.

recordActivityTaskHeartbeat

ActivityTaskStatus recordActivityTaskHeartbeat(RecordActivityTaskHeartbeatRequest recordActivityTaskHeartbeatRequest)

Used by activity workers to report to the service that the ActivityTask represented by the specified taskToken is still making progress. The worker can also (optionally) specify details of the progress, for example percent complete, using the details parameter. This action can also be used by the worker as a mechanism to check if cancellation is being requested for the activity task. If a cancellation is being attempted for the specified task, then the boolean cancelRequested flag returned by the service is set to true.

This action resets the taskHeartbeatTimeout clock. The taskHeartbeatTimeout is specified in RegisterActivityType.

This action does not in itself create an event in the workflow execution history. However, if the task times out, the workflow execution history will contain a ActivityTaskTimedOut event that contains the information from the last heartbeat generated by the activity worker.

The taskStartToCloseTimeout of an activity type is the maximum duration of an activity task, regardless of the number of RecordActivityTaskHeartbeat requests received. The taskStartToCloseTimeout is also specified in RegisterActivityType. This operation is only useful for long-lived activities to report liveliness of the task and to determine if a cancellation is being attempted. If the cancelRequested flag returns true, a cancellation is being attempted. If the worker can cancel the activity, it should respond with RespondActivityTaskCanceled. Otherwise, it should ignore the cancellation request.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

recordActivityTaskHeartbeatRequest -

Returns:

Result of the RecordActivityTaskHeartbeat operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

registerActivityType

void registerActivityType(RegisterActivityTypeRequest registerActivityTypeRequest)

Registers a new activity type along with its configuration settings in the specified domain.

A TypeAlreadyExists fault is returned if the type already exists in the domain. You cannot change any configuration settings of the type after its registration, and it must be registered as a new version.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • defaultTaskList.name: String constraint. The key is swf:defaultTaskList.name.
  • name: String constraint. The key is swf:name.
  • version: String constraint. The key is swf:version.

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.

Parameters:

registerActivityTypeRequest -

Throws:

TypeAlreadyExistsException - Returned if the type already exists in the specified domain. You will get this fault even if the existing type is in deprecated status. You can specify another version if the intent is to create a new distinct version of the type.

LimitExceededException - Returned by any operation if a system imposed limitation has been reached. To address this fault you should either clean up unused resources or increase the limit by contacting AWS.

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

registerDomain

void registerDomain(RegisterDomainRequest registerDomainRequest)

Registers a new domain.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• You cannot use an IAM policy to control domain access for this action. The name of the domain being registered is available as the resource of this action.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

registerDomainRequest -

Throws:

DomainAlreadyExistsException - Returned if the specified domain already exists. You will get this fault even if the existing domain is in deprecated status.

LimitExceededException - Returned by any operation if a system imposed limitation has been reached. To address this fault you should either clean up unused resources or increase the limit by contacting AWS.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

registerWorkflowType

void registerWorkflowType(RegisterWorkflowTypeRequest registerWorkflowTypeRequest)

Registers a new workflow type and its configuration settings in the specified domain.

The retention period for the workflow history is set by the RegisterDomain action.

If the type already exists, then a TypeAlreadyExists fault is returned. You cannot change the configuration settings of a workflow type once it is registered and it must be registered as a new version.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • defaultTaskList.name: String constraint. The key is swf:defaultTaskList.name.
  • name: String constraint. The key is swf:name.
  • version: String constraint. The key is swf:version.

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.

Parameters:

registerWorkflowTypeRequest -

Throws:

TypeAlreadyExistsException - Returned if the type already exists in the specified domain. You will get this fault even if the existing type is in deprecated status. You can specify another version if the intent is to create a new distinct version of the type.

LimitExceededException - Returned by any operation if a system imposed limitation has been reached. To address this fault you should either clean up unused resources or increase the limit by contacting AWS.

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

requestCancelWorkflowExecution

void requestCancelWorkflowExecution(RequestCancelWorkflowExecutionRequest requestCancelWorkflowExecutionRequest)

Records a WorkflowExecutionCancelRequested event in the currently running workflow execution identified by the given domain, workflowId, and runId. This logically requests the cancellation of the workflow execution as a whole. It is up to the decider to take appropriate actions when it receives an execution history with this event.

If the runId is not specified, the WorkflowExecutionCancelRequested event is recorded in the history of the current open workflow execution with the specified workflowId in the domain. Because this action allows the workflow to properly clean up and gracefully close, it should be used instead of TerminateWorkflowExecution when possible.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

requestCancelWorkflowExecutionRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

respondActivityTaskCanceled

void respondActivityTaskCanceled(RespondActivityTaskCanceledRequest respondActivityTaskCanceledRequest)

Used by workers to tell the service that the ActivityTask identified by the taskToken was successfully canceled. Additional details can be optionally provided using the details argument.

These details (if provided) appear in the ActivityTaskCanceled event added to the workflow history.

Only use this operation if the canceled flag of a RecordActivityTaskHeartbeat request returns true and if the activity can be safely undone or abandoned.

A task is considered open from the time that it is scheduled until it is closed. Therefore a task is reported as open while a worker is processing it. A task is closed after it has been specified in a call to RespondActivityTaskCompleted, RespondActivityTaskCanceled, RespondActivityTaskFailed, or the task has timed out.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

respondActivityTaskCanceledRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

respondActivityTaskCompleted

void respondActivityTaskCompleted(RespondActivityTaskCompletedRequest respondActivityTaskCompletedRequest)

Used by workers to tell the service that the ActivityTask identified by the taskToken completed successfully with a result (if provided). The result appears in the ActivityTaskCompleted event in the workflow history.

If the requested task does not complete successfully, use RespondActivityTaskFailed instead. If the worker finds that the task is canceled through the canceled flag returned by RecordActivityTaskHeartbeat, it should cancel the task, clean up and then call RespondActivityTaskCanceled.

A task is considered open from the time that it is scheduled until it is closed. Therefore a task is reported as open while a worker is processing it. A task is closed after it has been specified in a call to RespondActivityTaskCompleted, RespondActivityTaskCanceled, RespondActivityTaskFailed, or the task has timed out.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

respondActivityTaskCompletedRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

respondActivityTaskFailed

void respondActivityTaskFailed(RespondActivityTaskFailedRequest respondActivityTaskFailedRequest)

Used by workers to tell the service that the ActivityTask identified by the taskToken has failed with reason (if specified). The reason and details appear in the ActivityTaskFailed event added to the workflow history.

A task is considered open from the time that it is scheduled until it is closed. Therefore a task is reported as open while a worker is processing it. A task is closed after it has been specified in a call to RespondActivityTaskCompleted, RespondActivityTaskCanceled, RespondActivityTaskFailed, or the task has timed out.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

respondActivityTaskFailedRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

respondDecisionTaskCompleted

void respondDecisionTaskCompleted(RespondDecisionTaskCompletedRequest respondDecisionTaskCompletedRequest)

Used by deciders to tell the service that the DecisionTask identified by the taskToken has successfully completed. The decisions argument specifies the list of decisions made while processing the task.

A DecisionTaskCompleted event is added to the workflow history. The executionContext specified is attached to the event in the workflow execution history.

Access Control

If an IAM policy grants permission to use RespondDecisionTaskCompleted, it can express permissions for the list of decisions in the decisions parameter. Each of the decisions has one or more parameters, much like a regular API call. To allow for policies to be as readable as possible, you can express permissions on decisions as if they were actual API calls, including applying conditions to some parameters. For more information, see Using IAM to Manage Access to Amazon SWF Workflows.

Parameters:

respondDecisionTaskCompletedRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

signalWorkflowExecution

void signalWorkflowExecution(SignalWorkflowExecutionRequest signalWorkflowExecutionRequest)

Records a WorkflowExecutionSignaled event in the workflow execution history and creates a decision task for the workflow execution identified by the given domain, workflowId and runId. The event is recorded with the specified user defined signalName and input (if provided).

If a runId is not specified, then the WorkflowExecutionSignaled event is recorded in the history of the current open workflow with the matching workflowId in the domain. If the specified workflow execution is not open, this method fails with UnknownResource.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

signalWorkflowExecutionRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

startWorkflowExecution

Run startWorkflowExecution(StartWorkflowExecutionRequest startWorkflowExecutionRequest)

Starts an execution of the workflow type in the specified domain using the provided workflowId and input data.

This action returns the newly started workflow execution.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• Constrain the following parameters by using a Condition element with the appropriate keys.
  • tagList.member.0: The key is swf:tagList.member.0.
  • tagList.member.1: The key is swf:tagList.member.1.
  • tagList.member.2: The key is swf:tagList.member.2.
  • tagList.member.3: The key is swf:tagList.member.3.
  • tagList.member.4: The key is swf:tagList.member.4.
  • taskList: String constraint. The key is swf:taskList.name.
  • workflowType.name: String constraint. The key is swf:workflowType.name.
  • workflowType.version: String constraint. The key is swf:workflowType.version.

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.

Parameters:

startWorkflowExecutionRequest -

Returns:

Result of the StartWorkflowExecution operation returned by the service.

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

TypeDeprecatedException - Returned when the specified activity or workflow type was already deprecated.

WorkflowExecutionAlreadyStartedException - Returned by StartWorkflowExecution when an open execution with the same workflowId is already running in the specified domain.

LimitExceededException - Returned by any operation if a system imposed limitation has been reached. To address this fault you should either clean up unused resources or increase the limit by contacting AWS.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

DefaultUndefinedException

terminateWorkflowExecution

void terminateWorkflowExecution(TerminateWorkflowExecutionRequest terminateWorkflowExecutionRequest)

Records a WorkflowExecutionTerminated event and forces closure of the workflow execution identified by the given domain, runId, and workflowId. The child policy, registered with the workflow type or specified when starting this execution, is applied to any open child workflow executions of this workflow execution.

If the identified workflow execution was in progress, it is terminated immediately. If a runId is not specified, then the WorkflowExecutionTerminated event is recorded in the history of the current open workflow with the matching workflowId in the domain. You should consider using RequestCancelWorkflowExecution action instead because it allows the workflow to gracefully close while TerminateWorkflowExecution does not.

Access Control

You can use IAM policies to control this action's access to Amazon SWF resources as follows:

• Use a Resource element with the domain name to limit the action to only specified domains.
• Use an Action element to allow or deny permission to call this action.
• You cannot use an IAM policy to constrain this action's parameters.

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.

Parameters:

terminateWorkflowExecutionRequest -

Throws:

UnknownResourceException - Returned when the named resource cannot be found with in the scope of this operation (region or domain). This could happen if the named resource was never created or is no longer available for this operation.

OperationNotPermittedException - Returned when the caller does not have sufficient permissions to invoke the action.

shutdown

void shutdown()

Shuts down this client object, releasing any resources that might be held open. This is an optional method, and callers are not expected to call it, but can if they want to explicitly release any open resources. Once a client has been shutdown, it should not be used to make any more requests.

getCachedResponseMetadata

ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request)

Returns additional metadata for a previously executed successful request, typically used for debugging issues where a service isn't acting as expected. This data isn't considered part of the result data returned by an operation, so it's available through this separate, diagnostic interface.

Response metadata is only cached for a limited period of time, so if you need to access this extra diagnostic information for an executed request, you should use this method to retrieve it as soon as possible after executing a request.

Parameters:

request - The originally executed request.

Returns:

The response metadata for the specified request, or null if none is available.