Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package be.krivi.ucll.ip.api.listener; import be.krivi.ucll.ip.domain.service.NetworkService; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.context.ApplicationEvent; import org.springframework.context.ApplicationListener; import org.springframework.context.event.ContextClosedEvent; import org.springframework.context.event.ContextStartedEvent; public class ContextListener implements ApplicationListener { @Autowired private NetworkService service; @Override public void onApplicationEvent(ApplicationEvent event) { if (event instanceof ContextStartedEvent) { service.openConnection(); } else if (event instanceof ContextClosedEvent) { service.closeConnection(); } } }