How to use @AccessTimeout the right way?

[hanseichelpilz]

Hi,

i'm currently wondering how to use the @AccessTimeout annotation the right way.

In my case, i have a singleton bean with a @Timeout annotated method.

I thought could control the execution duration of this method with the @AccessTimeout annotation. So when there is a timer run each 15 seconds i want to assure, that one call of my method triggered by the timer will abort after 14 seconds.

Thats my timeout method.

    @AccessTimeout( value = 14000 )
    @Timeout
    public void doWork() throws NotSupportedException, Exception {
        doSomethingThatCanLastALongTime();  
    }

And this is my ScheduleExpression producer:

    @Produces
    public ScheduleExpression produceSchedule() {

        return new ScheduleExpression().
                hour( "*" ).
                minute( "*" ).
                second( "*/15" );
    }

I would expect, that the method doWork() would throw an exception if the execution takes more than 14 seconds. But thats not the case.

Even if i put a Thread.sleep(20000) in the method, no exception is thrown.

I'm in doubt that the @AccessTimeout is the right annotation for my purpose

[hanseichelpilz]

A well, figured it out now.

The @AccessTimeout annotation defines the time a second thread should wait until the lock at the method is removed. Only in that case the exception is thrown.