com.amazonaws.services.simpleworkflow.flow.core

Class ExternalTask

java.lang.Object

com.amazonaws.services.simpleworkflow.flow.core.ExternalTask

public abstract class ExternalTask
extends Object

Used to bridge asynchronous execution to external asynchronous APIs or events. ExternalTask#doExecute(handle) method is expected to initiate call to an external API and return without blocking. Then completion or failure of the external task is reported through ExternalTaskCompletionHandle. A cancellation handler returned by the doExecute is used to report cancellation of the external task.

Constructor Summary

Constructors

Constructor and Description
ExternalTask(com.amazonaws.services.simpleworkflow.flow.core.AsyncContextAware parent, boolean daemon, Promise<?>... waitFor)
ExternalTask(com.amazonaws.services.simpleworkflow.flow.core.AsyncContextAware parent, Promise<?>... waitFor)
ExternalTask(boolean daemon, Promise<?>... waitFor)
ExternalTask(Promise<?>... waitFor)

Method Summary

Methods

Modifier and Type	Method and Description
protected abstract ExternalTaskCancellationHandler	doExecute(ExternalTaskCompletionHandle handle)
String	getName()
StackTraceElement[]	getStackTrace()
void	setName(String name)

Methods inherited from class java.lang.Object

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

Constructor Detail

ExternalTask

public ExternalTask(Promise<?>... waitFor)

ExternalTask

public ExternalTask(boolean daemon,
            Promise<?>... waitFor)

ExternalTask

public ExternalTask(com.amazonaws.services.simpleworkflow.flow.core.AsyncContextAware parent,
            Promise<?>... waitFor)

ExternalTask

public ExternalTask(com.amazonaws.services.simpleworkflow.flow.core.AsyncContextAware parent,
            boolean daemon,
            Promise<?>... waitFor)

Method Detail

getName

public String getName()

setName

public void setName(String name)

getStackTrace

public StackTraceElement[] getStackTrace()

doExecute

protected abstract ExternalTaskCancellationHandler doExecute(ExternalTaskCompletionHandle handle)
                                                      throws Throwable

Throws:

Throwable