io.temporal.internal.statemachines

Class WorkflowStateMachines

java.lang.Object

io.temporal.internal.statemachines.WorkflowStateMachines

public final class WorkflowStateMachines
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
WorkflowStateMachines(EntityManagerListener callbacks)
WorkflowStateMachines(EntityManagerListener callbacks, Functions.Proc1<io.temporal.internal.statemachines.StateMachine> stateMachineSink)

Method Summary

Modifier and Type	Method and Description
void	cancelWorkflow()
void	completeWorkflow(java.util.Optional<io.temporal.api.common.v1.Payloads> workflowOutput)
void	continueAsNewWorkflow(io.temporal.api.command.v1.ContinueAsNewWorkflowExecutionCommandAttributes attributes)
long	currentTimeMillis()
void	failWorkflow(io.temporal.api.failure.v1.Failure failure)
long	getLastStartedEventId()
void	getVersion(java.lang.String changeId, int minSupported, int maxSupported, Functions.Proc1<java.lang.Integer> callback)
void	handleEvent(io.temporal.api.history.v1.HistoryEvent event, boolean hasNextEvent) Handle a single event from the workflow history.
void	handleLocalActivityCompletion(ActivityTaskHandler.Result laCompletion)
boolean	isReplaying()
void	mutableSideEffect(java.lang.String id, Functions.Func1<java.util.Optional<io.temporal.api.common.v1.Payloads>,java.util.Optional<io.temporal.api.common.v1.Payloads>> func, Functions.Proc1<java.util.Optional<io.temporal.api.common.v1.Payloads>> callback)
java.util.Random	newRandom()
Functions.Proc	newTimer(io.temporal.api.command.v1.StartTimerCommandAttributes attributes, Functions.Proc1<io.temporal.api.history.v1.HistoryEvent> completionCallback) Creates a new timer state machine
java.util.UUID	randomUUID()
void	requestCancelExternalWorkflowExecution(io.temporal.api.command.v1.RequestCancelExternalWorkflowExecutionCommandAttributes attributes, Functions.Proc2<java.lang.Void,java.lang.RuntimeException> completionCallback)
Functions.Proc	scheduleActivityTask(ExecuteActivityParameters attributes, Functions.Proc2<java.util.Optional<io.temporal.api.common.v1.Payloads>,io.temporal.api.failure.v1.Failure> callback)
Functions.Proc	scheduleLocalActivityTask(ExecuteLocalActivityParameters parameters, Functions.Proc2<java.util.Optional<io.temporal.api.common.v1.Payloads>,io.temporal.api.failure.v1.Failure> callback)
void	setStartedIds(long previousStartedEventId, long workflowTaskStartedEventId)
void	sideEffect(Functions.Func<java.util.Optional<io.temporal.api.common.v1.Payloads>> func, Functions.Proc1<java.util.Optional<io.temporal.api.common.v1.Payloads>> callback)
Functions.Proc	signalExternalWorkflowExecution(io.temporal.api.command.v1.SignalExternalWorkflowExecutionCommandAttributes attributes, Functions.Proc2<java.lang.Void,io.temporal.api.failure.v1.Failure> completionCallback)
Functions.Proc	startChildWorkflow(StartChildWorkflowExecutionParameters parameters, Functions.Proc1<io.temporal.api.common.v1.WorkflowExecution> startedCallback, Functions.Proc2<java.util.Optional<io.temporal.api.common.v1.Payloads>,java.lang.Exception> completionCallback) Creates a new child state machine
java.util.List<io.temporal.api.command.v1.Command>	takeCommands()
java.util.List<ExecuteLocalActivityParameters>	takeLocalActivityRequests()
void	upsertSearchAttributes(io.temporal.api.common.v1.SearchAttributes attributes)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WorkflowStateMachines

public WorkflowStateMachines(EntityManagerListener callbacks)

WorkflowStateMachines

public WorkflowStateMachines(EntityManagerListener callbacks,
                             Functions.Proc1<io.temporal.internal.statemachines.StateMachine> stateMachineSink)

Method Detail

setStartedIds

public void setStartedIds(long previousStartedEventId,
                          long workflowTaskStartedEventId)

handleEvent

public final void handleEvent(io.temporal.api.history.v1.HistoryEvent event,
                              boolean hasNextEvent)

Handle a single event from the workflow history.

Parameters:

event - event from the history.

hasNextEvent - false if this is the last event in the history.

takeCommands

public java.util.List<io.temporal.api.command.v1.Command> takeCommands()

getLastStartedEventId

public long getLastStartedEventId()

scheduleActivityTask

public Functions.Proc scheduleActivityTask(ExecuteActivityParameters attributes,
                                           Functions.Proc2<java.util.Optional<io.temporal.api.common.v1.Payloads>,io.temporal.api.failure.v1.Failure> callback)

Parameters:

attributes - attributes used to schedule an activity

callback - completion callback

Returns:

an instance of ActivityCommands

newTimer

public Functions.Proc newTimer(io.temporal.api.command.v1.StartTimerCommandAttributes attributes,
                               Functions.Proc1<io.temporal.api.history.v1.HistoryEvent> completionCallback)

Creates a new timer state machine

Parameters:

attributes - timer command attributes

completionCallback - invoked when timer fires or reports cancellation. One of TimerFiredEvent, TimerCanceledEvent.

Returns:

cancellation callback that should be invoked to initiate timer cancellation

startChildWorkflow

public Functions.Proc startChildWorkflow(StartChildWorkflowExecutionParameters parameters,
                                         Functions.Proc1<io.temporal.api.common.v1.WorkflowExecution> startedCallback,
                                         Functions.Proc2<java.util.Optional<io.temporal.api.common.v1.Payloads>,java.lang.Exception> completionCallback)

Creates a new child state machine

Parameters:

parameters - child workflow start command parameters.

startedCallback - callback that is notified about child start

completionCallback - invoked when child reports completion or failure.

Returns:

cancellation callback that should be invoked to cancel the child

signalExternalWorkflowExecution

public Functions.Proc signalExternalWorkflowExecution(io.temporal.api.command.v1.SignalExternalWorkflowExecutionCommandAttributes attributes,
                                                      Functions.Proc2<java.lang.Void,io.temporal.api.failure.v1.Failure> completionCallback)

Parameters:

attributes -

completionCallback - invoked when signal delivery completes of fails. The following types

requestCancelExternalWorkflowExecution

public void requestCancelExternalWorkflowExecution(io.temporal.api.command.v1.RequestCancelExternalWorkflowExecutionCommandAttributes attributes,
                                                   Functions.Proc2<java.lang.Void,java.lang.RuntimeException> completionCallback)

Parameters:

attributes - attributes to use to cancel external worklfow

completionCallback - one of ExternalWorkflowExecutionCancelRequestedEvent,

upsertSearchAttributes

public void upsertSearchAttributes(io.temporal.api.common.v1.SearchAttributes attributes)

completeWorkflow

public void completeWorkflow(java.util.Optional<io.temporal.api.common.v1.Payloads> workflowOutput)

failWorkflow

public void failWorkflow(io.temporal.api.failure.v1.Failure failure)

cancelWorkflow

public void cancelWorkflow()

continueAsNewWorkflow

public void continueAsNewWorkflow(io.temporal.api.command.v1.ContinueAsNewWorkflowExecutionCommandAttributes attributes)

isReplaying

public boolean isReplaying()

currentTimeMillis

public long currentTimeMillis()

randomUUID

public java.util.UUID randomUUID()

newRandom

public java.util.Random newRandom()

sideEffect

public void sideEffect(Functions.Func<java.util.Optional<io.temporal.api.common.v1.Payloads>> func,
                       Functions.Proc1<java.util.Optional<io.temporal.api.common.v1.Payloads>> callback)

mutableSideEffect

public void mutableSideEffect(java.lang.String id,
                              Functions.Func1<java.util.Optional<io.temporal.api.common.v1.Payloads>,java.util.Optional<io.temporal.api.common.v1.Payloads>> func,
                              Functions.Proc1<java.util.Optional<io.temporal.api.common.v1.Payloads>> callback)

Parameters:

id - mutable side effect id

func - given the value from the last marker returns value to store. If result is empty nothing is recorded into the history.

callback - used to report result or failure

getVersion

public void getVersion(java.lang.String changeId,
                       int minSupported,
                       int maxSupported,
                       Functions.Proc1<java.lang.Integer> callback)

takeLocalActivityRequests

public java.util.List<ExecuteLocalActivityParameters> takeLocalActivityRequests()

handleLocalActivityCompletion

public void handleLocalActivityCompletion(ActivityTaskHandler.Result laCompletion)

scheduleLocalActivityTask

public Functions.Proc scheduleLocalActivityTask(ExecuteLocalActivityParameters parameters,
                                                Functions.Proc2<java.util.Optional<io.temporal.api.common.v1.Payloads>,io.temporal.api.failure.v1.Failure> callback)