initial delay for poller

[pgondi]

I noticed following in my logs:

"Configuration problem: Poller configuration via 'interval-trigger' subelements is deprecated, use the 'fixed-delay' or 'fixed-rate' attribute instead."

If interval-trigger is deprecated, what is the way of setting 'initial-delay' with 'fixed-delay'/'fixed-rate'?

Thanks

[Mark Fisher]

You can provide the "trigger" attribute and reference a bean of type PeriodicTrigger. That bean can be configured with initialDelay as well as its other properties.

Hope that helps.
-Mark

[pgondi]

That is very helpful. Thanks.

[jbbarquero]

Hello pgondi,

I appreciate a lot your question.

And thanks to Mark for the response.

I would have prefered to use the namespace:

<task:executor id="senderTaskExecutor" pool-size="5" queue-capacity="50" /><!-- WorkManagerTaskExecutor in production -->

<int:inbound-channel-adapter id="senderPoller" ref="myServiceActivator" method="obtainRecordsToBeSent" channel="out">
	<int:poller initial-delay="${sender.initialDelay}" fixed-rate="${sender.frequency}" time-unit="SECONDS" task-executor="senderTaskExecutor"/>
</int:inbound-channel-adapter>

Instead of creating my own bean:

<task:executor id="senderTaskExecutor" pool-size="5" queue-capacity="50" /><!-- WorkManagerTaskExecutor in production -->

<bean id="senderTrigger" class="org.springframework.scheduling.support.PeriodicTrigger"
	c:period="${sender.frequency}" c:timeUnit="SECONDS"
	p:initialDelay="${sender.initialDelay}"
/>

<int:inbound-channel-adapter id="senderPoller" ref="myServiceActivator" method="obtainRecordsToBeSent" channel="out">
	<int:poller trigger="senderTrigger" task-executor="senderTaskExecutor"  />
</int:inbound-channel-adapter>

Maybe it would be possible to parse a "initial-delay" attribute when configuring the trigger at PollerParser.configureTrigger(...). Of course, if it creates a PeriodicTrigger.

But I don't know if it's that useful (I have problems in tests, because I need to populate a database before the execution of the task that selects from that database)

In any case, Mark's response has helped me