org.jboss.seam.cron.spi.asynchronous
Class Invoker

java.lang.Object
  org.jboss.seam.cron.spi.asynchronous.Invoker

public class Invoker
extends Object

This class handles the invocation of the #Asynchronous method, unwrapping of the results out of a "dummy" #AsyncResult if necessary, and firing post-execution events with the results if any. It is designed as a managed bean to be instantiated via #@Inject Instance<Invoker>.

Author:

Peter Royle

Constructor Summary

Invoker()

Method Summary

Object	executeInvocationContext() Execute the #InvocationContext, unwrap the results from their #AsyncResult if necessary and fire a post-execution event.
void	setInvocationContext(InvocationContext ic)
protected void	setPopResultsFromFuture(boolean popResultsFromFuture) Set to true if the #InvocationContext returns a "dummy" #Future.

Methods inherited from class java.lang.Object

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

Constructor Detail

Invoker

public Invoker()

Method Detail

setInvocationContext

public void setInvocationContext(InvocationContext ic)

Parameters:

ic - The #InvocationContext which will be executed.

setPopResultsFromFuture

protected void setPopResultsFromFuture(boolean popResultsFromFuture)

Set to true if the #InvocationContext returns a "dummy" #Future. In that case we need to explicitly pop the return value out of it as it will have already been wrapped in an #AsyncResult by the #AsynchronousInterceptor.

Parameters:

popResultsFromFuture -

executeInvocationContext

public Object executeInvocationContext()
                                throws Exception

Execute the #InvocationContext, unwrap the results from their #AsyncResult if necessary and fire a post-execution event.

Returns:

The result of the method invocation, unwrapped if #popResultsFromFuture is true (ie: the return type of the method is a #Future).

Throws:

Exception - Includes any exception thrown by the invoked method.