com.amazonaws.services.simpleworkflow.flow.generic

Class ActivityImplementation

java.lang.Object

com.amazonaws.services.simpleworkflow.flow.generic.ActivityImplementation

Direct Known Subclasses:

ActivityImplementationBase

public abstract class ActivityImplementation
extends Object

Base class for activity implementation. Extending ActivityImplementationBase instead of ActivityImplementation is recommended.

Author:

fateev, suskin

See Also:

ActivityWorker, ActivityImplementationBase

Constructor Summary

Constructors

Constructor and Description
ActivityImplementation()

Method Summary

Methods

Modifier and Type	Method and Description
abstract String	execute(ActivityExecutionContext context) Execute external activity or initiate its execution if #isManualActivityCompletion() is true.
abstract ActivityTypeExecutionOptions	getExecutionOptions()
abstract ActivityTypeRegistrationOptions	getRegistrationOptions() Options passed to the AmazonSimpleWorkflow.registerActivityType(com.amazonaws.services.simpleworkflow.model.RegisterActivityTypeRequest) call.

Methods inherited from class java.lang.Object

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

Constructor Detail

ActivityImplementation

public ActivityImplementation()

Method Detail

getRegistrationOptions

public abstract ActivityTypeRegistrationOptions getRegistrationOptions()

Options passed to the AmazonSimpleWorkflow.registerActivityType(com.amazonaws.services.simpleworkflow.model.RegisterActivityTypeRequest) call.

Returns:

null if activity registration is not required on the worker startup

getExecutionOptions

public abstract ActivityTypeExecutionOptions getExecutionOptions()

execute

public abstract String execute(ActivityExecutionContext context)
                        throws ActivityFailureException,
                               CancellationException

Execute external activity or initiate its execution if #isManualActivityCompletion() is true.

Parameters:

task - information about activity to be executed. Use ActivityTask.getInput() to get activity input arguments.

Returns:

result of activity execution if #isManualActivityCompletion() is set to false. Use ActivityWorker#respondActivityTaskCompleted(String, Map) to return result in asynchronous case.

Throws:

ActivityFailureException

CancellationException