@Generated(value="com.amazonaws:aws-java-sdk-code-generator") public interface AWSStepFunctions
Note: Do not directly implement this interface, new methods are added to it regularly. Extend from
AbstractAWSStepFunctions
instead.
AWS Step Functions is a service that lets you coordinate the components of distributed applications and microservices using visual workflows.
You can use Step Functions to build applications from individual components, each of which performs a discrete function, or task, allowing you to scale and change applications quickly. Step Functions provides a console that helps visualize the components of your application as a series of steps. Step Functions automatically triggers and tracks each step, and retries steps when there are errors, so your application executes predictably and in the right order every time. Step Functions logs the state of each step, so you can quickly diagnose and debug any issues.
Step Functions manages operations and underlying infrastructure to ensure your application is available at any scale. You can run tasks on AWS, your own servers, or any system that has access to AWS. You can access and use Step Functions using the console, the AWS SDKs, or an HTTP API. For more information about Step Functions, see the AWS Step Functions Developer Guide .
Modifier and Type | Field and Description |
---|---|
static String |
ENDPOINT_PREFIX
The region metadata service name for computing region endpoints.
|
Modifier and Type | Method and Description |
---|---|
CreateActivityResult |
createActivity(CreateActivityRequest createActivityRequest)
Creates an activity.
|
CreateStateMachineResult |
createStateMachine(CreateStateMachineRequest createStateMachineRequest)
Creates a state machine.
|
DeleteActivityResult |
deleteActivity(DeleteActivityRequest deleteActivityRequest)
Deletes an activity.
|
DeleteStateMachineResult |
deleteStateMachine(DeleteStateMachineRequest deleteStateMachineRequest)
Deletes a state machine.
|
DescribeActivityResult |
describeActivity(DescribeActivityRequest describeActivityRequest)
Describes an activity.
|
DescribeExecutionResult |
describeExecution(DescribeExecutionRequest describeExecutionRequest)
Describes an execution.
|
DescribeStateMachineResult |
describeStateMachine(DescribeStateMachineRequest describeStateMachineRequest)
Describes a state machine.
|
DescribeStateMachineForExecutionResult |
describeStateMachineForExecution(DescribeStateMachineForExecutionRequest describeStateMachineForExecutionRequest)
Describes the state machine associated with a specific execution.
|
GetActivityTaskResult |
getActivityTask(GetActivityTaskRequest getActivityTaskRequest)
Used by workers to retrieve a task (with the specified activity ARN) which has been scheduled for execution by a
running state machine.
|
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.
|
GetExecutionHistoryResult |
getExecutionHistory(GetExecutionHistoryRequest getExecutionHistoryRequest)
Returns the history of the specified execution as a list of events.
|
ListActivitiesResult |
listActivities(ListActivitiesRequest listActivitiesRequest)
Lists the existing activities.
|
ListExecutionsResult |
listExecutions(ListExecutionsRequest listExecutionsRequest)
Lists the executions of a state machine that meet the filtering criteria.
|
ListStateMachinesResult |
listStateMachines(ListStateMachinesRequest listStateMachinesRequest)
Lists the existing state machines.
|
ListTagsForResourceResult |
listTagsForResource(ListTagsForResourceRequest listTagsForResourceRequest)
List tags for a given resource.
|
SendTaskFailureResult |
sendTaskFailure(SendTaskFailureRequest sendTaskFailureRequest)
Used by activity workers and task states using the callback pattern to report that the task identified by the
taskToken failed. |
SendTaskHeartbeatResult |
sendTaskHeartbeat(SendTaskHeartbeatRequest sendTaskHeartbeatRequest)
Used by activity workers and task states using the callback pattern to report to Step Functions that the task represented by the specified
taskToken is still making progress. |
SendTaskSuccessResult |
sendTaskSuccess(SendTaskSuccessRequest sendTaskSuccessRequest)
Used by activity workers and task states using the callback pattern to report that the task identified by the
taskToken completed successfully. |
void |
setEndpoint(String endpoint)
Deprecated.
use
AwsClientBuilder#setEndpointConfiguration(AwsClientBuilder.EndpointConfiguration) for
example:
builder.setEndpointConfiguration(new EndpointConfiguration(endpoint, signingRegion)); |
void |
setRegion(Region region)
Deprecated.
use
AwsClientBuilder#setRegion(String) |
void |
shutdown()
Shuts down this client object, releasing any resources that might be held open.
|
StartExecutionResult |
startExecution(StartExecutionRequest startExecutionRequest)
Starts a state machine execution.
|
StartSyncExecutionResult |
startSyncExecution(StartSyncExecutionRequest startSyncExecutionRequest)
Starts a Synchronous Express state machine execution.
|
StopExecutionResult |
stopExecution(StopExecutionRequest stopExecutionRequest)
Stops an execution.
|
TagResourceResult |
tagResource(TagResourceRequest tagResourceRequest)
Add a tag to a Step Functions resource.
|
UntagResourceResult |
untagResource(UntagResourceRequest untagResourceRequest)
Remove a tag from a Step Functions resource
|
UpdateStateMachineResult |
updateStateMachine(UpdateStateMachineRequest updateStateMachineRequest)
Updates an existing state machine by modifying its
definition , roleArn , or
loggingConfiguration . |
static final String ENDPOINT_PREFIX
@Deprecated void setEndpoint(String endpoint)
AwsClientBuilder#setEndpointConfiguration(AwsClientBuilder.EndpointConfiguration)
for
example:
builder.setEndpointConfiguration(new EndpointConfiguration(endpoint, signingRegion));
Callers can pass in just the endpoint (ex: "states.us-east-1.amazonaws.com") or a full URL, including the
protocol (ex: "states.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: https://docs.aws.amazon.com/sdk-for-java/v1/developer-guide/java-dg-region-selection.html#region-selection- choose-endpoint
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.
endpoint
- The endpoint (ex: "states.us-east-1.amazonaws.com") or a full URL, including the protocol (ex:
"states.us-east-1.amazonaws.com") of the region specific AWS endpoint this client will communicate with.@Deprecated void setRegion(Region region)
AwsClientBuilder#setRegion(String)
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.
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.Region.getRegion(com.amazonaws.regions.Regions)
,
Region.createClient(Class, com.amazonaws.auth.AWSCredentialsProvider, ClientConfiguration)
,
Region.isServiceSupported(String)
CreateActivityResult createActivity(CreateActivityRequest createActivityRequest)
Creates an activity. An activity is a task that you write in any programming language and host on any machine
that has access to AWS Step Functions. Activities must poll Step Functions using the GetActivityTask
API action and respond using SendTask*
API actions. This function lets Step Functions know the
existence of your activity and returns an identifier for use in a state machine and when polling from the
activity.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
CreateActivity
is an idempotent API. Subsequent requests won’t create a duplicate resource if it was
already created. CreateActivity
's idempotency check is based on the activity name
. If a
following request has different tags
values, Step Functions will ignore these differences and treat
it as an idempotent request of the previous. In this case, tags
will not be updated, even if they
are different.
createActivityRequest
- ActivityLimitExceededException
- The maximum number of activities has been reached. Existing activities must be deleted before a new
activity can be created.InvalidNameException
- The provided name is invalid.TooManyTagsException
- You've exceeded the number of tags allowed for a resource. See the Limits Topic in the AWS Step
Functions Developer Guide.CreateStateMachineResult createStateMachine(CreateStateMachineRequest createStateMachineRequest)
Creates a state machine. A state machine consists of a collection of states that can do work (Task
states), determine to which states to transition next (Choice
states), stop an execution with an
error (Fail
states), and so on. State machines are specified using a JSON-based, structured
language. For more information, see Amazon States
Language in the AWS Step Functions User Guide.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
CreateStateMachine
is an idempotent API. Subsequent requests won’t create a duplicate resource if it
was already created. CreateStateMachine
's idempotency check is based on the state machine
name
, definition
, type
, LoggingConfiguration
and
TracingConfiguration
. If a following request has a different roleArn
or
tags
, Step Functions will ignore these differences and treat it as an idempotent request of the
previous. In this case, roleArn
and tags
will not be updated, even if they are
different.
createStateMachineRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.InvalidDefinitionException
- The provided Amazon States Language definition is invalid.InvalidNameException
- The provided name is invalid.InvalidLoggingConfigurationException
InvalidTracingConfigurationException
- Your tracingConfiguration
key does not match, or enabled
has not been set to
true
or false
.StateMachineAlreadyExistsException
- A state machine with the same name but a different definition or role ARN already exists.StateMachineDeletingException
- The specified state machine is being deleted.StateMachineLimitExceededException
- The maximum number of state machines has been reached. Existing state machines must be deleted before a
new state machine can be created.StateMachineTypeNotSupportedException
TooManyTagsException
- You've exceeded the number of tags allowed for a resource. See the Limits Topic in the AWS Step
Functions Developer Guide.DeleteActivityResult deleteActivity(DeleteActivityRequest deleteActivityRequest)
Deletes an activity.
deleteActivityRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.DeleteStateMachineResult deleteStateMachine(DeleteStateMachineRequest deleteStateMachineRequest)
Deletes a state machine. This is an asynchronous operation: It sets the state machine's status to
DELETING
and begins the deletion process.
For EXPRESS
state machines, the deletion will happen eventually (usually less than a minute). Running
executions may emit logs after DeleteStateMachine
API is called.
deleteStateMachineRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.DescribeActivityResult describeActivity(DescribeActivityRequest describeActivityRequest)
Describes an activity.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
describeActivityRequest
- ActivityDoesNotExistException
- The specified activity does not exist.InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.DescribeExecutionResult describeExecution(DescribeExecutionRequest describeExecutionRequest)
Describes an execution.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
This API action is not supported by EXPRESS
state machines.
describeExecutionRequest
- ExecutionDoesNotExistException
- The specified execution does not exist.InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.DescribeStateMachineResult describeStateMachine(DescribeStateMachineRequest describeStateMachineRequest)
Describes a state machine.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
describeStateMachineRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.StateMachineDoesNotExistException
- The specified state machine does not exist.DescribeStateMachineForExecutionResult describeStateMachineForExecution(DescribeStateMachineForExecutionRequest describeStateMachineForExecutionRequest)
Describes the state machine associated with a specific execution.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
This API action is not supported by EXPRESS
state machines.
describeStateMachineForExecutionRequest
- ExecutionDoesNotExistException
- The specified execution does not exist.InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.GetActivityTaskResult getActivityTask(GetActivityTaskRequest getActivityTaskRequest)
Used by workers to retrieve a task (with the specified activity ARN) which has been scheduled for execution by a
running state machine. This initiates a long poll, where the service holds the HTTP connection open and responds
as soon as a task becomes available (i.e. an execution of a task of this type is needed.) 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 returns a taskToken
with a null string.
Workers should set their client side socket timeout to at least 65 seconds (5 seconds higher than the maximum time the service may hold the poll request).
Polling with GetActivityTask
can cause latency in some implementations. See Avoid Latency When Polling
for Activity Tasks in the Step Functions Developer Guide.
getActivityTaskRequest
- ActivityDoesNotExistException
- The specified activity does not exist.ActivityWorkerLimitExceededException
- The maximum number of workers concurrently polling for activity tasks has been reached.InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.GetExecutionHistoryResult getExecutionHistory(GetExecutionHistoryRequest getExecutionHistoryRequest)
Returns the history of the specified execution as a list of events. By default, the results are returned in
ascending order of the timeStamp
of the events. Use the reverseOrder
parameter to get
the latest events first.
If nextToken
is returned, there are more results available. The value of nextToken
is a
unique pagination token for each page. Make the call again using the returned token to retrieve the next page.
Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination
token will return an HTTP 400 InvalidToken error.
This API action is not supported by EXPRESS
state machines.
getExecutionHistoryRequest
- ExecutionDoesNotExistException
- The specified execution does not exist.InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.InvalidTokenException
- The provided token is invalid.ListActivitiesResult listActivities(ListActivitiesRequest listActivitiesRequest)
Lists the existing activities.
If nextToken
is returned, there are more results available. The value of nextToken
is a
unique pagination token for each page. Make the call again using the returned token to retrieve the next page.
Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination
token will return an HTTP 400 InvalidToken error.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
listActivitiesRequest
- InvalidTokenException
- The provided token is invalid.ListExecutionsResult listExecutions(ListExecutionsRequest listExecutionsRequest)
Lists the executions of a state machine that meet the filtering criteria. Results are sorted by time, with the most recent execution first.
If nextToken
is returned, there are more results available. The value of nextToken
is a
unique pagination token for each page. Make the call again using the returned token to retrieve the next page.
Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination
token will return an HTTP 400 InvalidToken error.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
This API action is not supported by EXPRESS
state machines.
listExecutionsRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.InvalidTokenException
- The provided token is invalid.StateMachineDoesNotExistException
- The specified state machine does not exist.StateMachineTypeNotSupportedException
ListStateMachinesResult listStateMachines(ListStateMachinesRequest listStateMachinesRequest)
Lists the existing state machines.
If nextToken
is returned, there are more results available. The value of nextToken
is a
unique pagination token for each page. Make the call again using the returned token to retrieve the next page.
Keep all other arguments unchanged. Each pagination token expires after 24 hours. Using an expired pagination
token will return an HTTP 400 InvalidToken error.
This operation is eventually consistent. The results are best effort and may not reflect very recent updates and changes.
listStateMachinesRequest
- InvalidTokenException
- The provided token is invalid.ListTagsForResourceResult listTagsForResource(ListTagsForResourceRequest listTagsForResourceRequest)
List tags for a given resource.
Tags may only contain Unicode letters, digits, white space, or these symbols: _ . : / = + - @
.
listTagsForResourceRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.ResourceNotFoundException
- Could not find the referenced resource. Only state machine and activity ARNs are supported.SendTaskFailureResult sendTaskFailure(SendTaskFailureRequest sendTaskFailureRequest)
Used by activity workers and task states using the callback pattern to report that the task identified by the taskToken
failed.
sendTaskFailureRequest
- TaskDoesNotExistException
InvalidTokenException
- The provided token is invalid.TaskTimedOutException
SendTaskHeartbeatResult sendTaskHeartbeat(SendTaskHeartbeatRequest sendTaskHeartbeatRequest)
Used by activity workers and task states using the callback pattern to report to Step Functions that the task represented by the specified
taskToken
is still making progress. This action resets the Heartbeat
clock. The
Heartbeat
threshold is specified in the state machine's Amazon States Language definition (
HeartbeatSeconds
). This action does not in itself create an event in the execution history. However,
if the task times out, the execution history contains an ActivityTimedOut
entry for activities, or a
TaskTimedOut
entry for for tasks using the job run or
callback pattern.
The Timeout
of a task, defined in the state machine's Amazon States Language definition, is its
maximum allowed duration, regardless of the number of SendTaskHeartbeat requests received. Use
HeartbeatSeconds
to configure the timeout interval for heartbeats.
sendTaskHeartbeatRequest
- TaskDoesNotExistException
InvalidTokenException
- The provided token is invalid.TaskTimedOutException
SendTaskSuccessResult sendTaskSuccess(SendTaskSuccessRequest sendTaskSuccessRequest)
Used by activity workers and task states using the callback pattern to report that the task identified by the taskToken
completed successfully.
sendTaskSuccessRequest
- TaskDoesNotExistException
InvalidOutputException
- The provided JSON output data is invalid.InvalidTokenException
- The provided token is invalid.TaskTimedOutException
StartExecutionResult startExecution(StartExecutionRequest startExecutionRequest)
Starts a state machine execution.
StartExecution
is idempotent. If StartExecution
is called with the same name and input
as a running execution, the call will succeed and return the same response as the original request. If the
execution is closed or if the input is different, it will return a 400 ExecutionAlreadyExists
error.
Names can be reused after 90 days.
startExecutionRequest
- ExecutionLimitExceededException
- The maximum number of running executions has been reached. Running executions must end or be stopped
before a new execution can be started.ExecutionAlreadyExistsException
- The execution has the same name
as another execution (but a different input
).
Executions with the same name
and input
are considered idempotent.
InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.InvalidExecutionInputException
- The provided JSON input data is invalid.InvalidNameException
- The provided name is invalid.StateMachineDoesNotExistException
- The specified state machine does not exist.StateMachineDeletingException
- The specified state machine is being deleted.StartSyncExecutionResult startSyncExecution(StartSyncExecutionRequest startSyncExecutionRequest)
Starts a Synchronous Express state machine execution.
startSyncExecutionRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.InvalidExecutionInputException
- The provided JSON input data is invalid.InvalidNameException
- The provided name is invalid.StateMachineDoesNotExistException
- The specified state machine does not exist.StateMachineDeletingException
- The specified state machine is being deleted.StateMachineTypeNotSupportedException
StopExecutionResult stopExecution(StopExecutionRequest stopExecutionRequest)
Stops an execution.
This API action is not supported by EXPRESS
state machines.
stopExecutionRequest
- ExecutionDoesNotExistException
- The specified execution does not exist.InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.TagResourceResult tagResource(TagResourceRequest tagResourceRequest)
Add a tag to a Step Functions resource.
An array of key-value pairs. For more information, see Using Cost Allocation Tags in the AWS Billing and Cost Management User Guide, and Controlling Access Using IAM Tags.
Tags may only contain Unicode letters, digits, white space, or these symbols: _ . : / = + - @
.
tagResourceRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.ResourceNotFoundException
- Could not find the referenced resource. Only state machine and activity ARNs are supported.TooManyTagsException
- You've exceeded the number of tags allowed for a resource. See the Limits Topic in the AWS Step
Functions Developer Guide.UntagResourceResult untagResource(UntagResourceRequest untagResourceRequest)
Remove a tag from a Step Functions resource
untagResourceRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.ResourceNotFoundException
- Could not find the referenced resource. Only state machine and activity ARNs are supported.UpdateStateMachineResult updateStateMachine(UpdateStateMachineRequest updateStateMachineRequest)
Updates an existing state machine by modifying its definition
, roleArn
, or
loggingConfiguration
. Running executions will continue to use the previous definition
and roleArn
. You must include at least one of definition
or roleArn
or you
will receive a MissingRequiredParameter
error.
All StartExecution
calls within a few seconds will use the updated definition
and
roleArn
. Executions started immediately after calling UpdateStateMachine
may use the
previous state machine definition
and roleArn
.
updateStateMachineRequest
- InvalidArnException
- The provided Amazon Resource Name (ARN) is invalid.InvalidDefinitionException
- The provided Amazon States Language definition is invalid.InvalidLoggingConfigurationException
InvalidTracingConfigurationException
- Your tracingConfiguration
key does not match, or enabled
has not been set to
true
or false
.MissingRequiredParameterException
- Request is missing a required parameter. This error occurs if both definition
and
roleArn
are not specified.StateMachineDeletingException
- The specified state machine is being deleted.StateMachineDoesNotExistException
- The specified state machine does not exist.void shutdown()
ResponseMetadata getCachedResponseMetadata(AmazonWebServiceRequest request)
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.
request
- The originally executed request.Copyright © 2022. All rights reserved.