How do I hook a method call on the server shutdown?

Flow
1

I tried to use ServletContextListener since Vaadin uses Springboot but I wasn’t successful. I also looked at VaadinServiceInitListener but that didn’t seem right. I also looked at overriding a method in the Application (aka) SpringBootServletInitializer but the closest I found was onStartup(). I also looked at the online documentation but wasn’t sure. Any help would be appreciated.

2

/**
* Adds a service destroy listener that gets notified when this service is
* destroyed.
*


* The listeners may be invoked in a non-deterministic order. In particular,
* it is not guaranteed that listeners will be invoked in the order they
* were added.
*
* @param listener
* the service destroy listener to add
* @return a handle that can be used for removing the listener
* @see #destroy()
* @see ServiceDestroyListener
*/
public Registration addServiceDestroyListener(ServiceDestroyListener listener)

3

But it really depends on what you are actually doing whether it is correct to do this using Vaadin API’s or some other API’s like Spring API’s.

4

Note, if your class where you need this is a ApplicationScope Service bean, you could also use @PreDestry method there for cleanup.

5

Thank you. That helped a lot.