Delay task:scheduler first execution in Spring 3
java, spring
Solution
This seems to have been left out of the `<task:scheduled>` bean definition, something I only just noticed last week.
Remember, though, that the `<task:...>` definitions are just shortcuts, you can always use the explicit approach, by defining a `ScheduledExecutorFactoryBean`, with nested `ScheduledExecutorTask` beans. This gives you much finer control, including `initialDelay`.
Problem
I have a simple application that uses Spring 3 for dependency injection. I have a JFrame for the user to look at and some background tasks for synchronizing with a back-end server and local database maintenance. This is the relevant part of my application context: ``` <task:scheduler id="scheduler" pool-size="1"/> <task:scheduled-tasks scheduler="scheduler"> <task:scheduled ref="synchronizer" method="incrementalSync" fixed-delay="600000"/> ... more tasks ... </task:scheduled-tasks> <bean id="mainFrame" class="nl.gdries.myapp.client.ui.MainFrame"> ... properties and such ... </bean> ``` When I start this applicationContext the scheduler immediately starts executing the background tasks even while my UI is loading. Because the first task is a rather heavy one at the start I want it to wait for the UI to fully load and display before it starts execution. Does anyone know how to tell Spring to delay executing the scheduled tasks until a moment of my choosing?