Implements ApplicationEventPublisherAware
File: context.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd"> <beans> <bean id="heartbeatTask" class="HeartbeatTask"/> <bean id="scheduledTask" class="org.springframework.scheduling.timer.ScheduledTimerTask"> <property name="timerTask"><ref local="heartbeatTask"/></property> <property name="period"><value>1000</value></property> </bean> <bean id="timerFactory" class="org.springframework.scheduling.timer.TimerFactoryBean"> <property name="scheduledTimerTasks"> <list> <ref local="scheduledTask"/> </list> </property> </bean> <bean id="heartbeatForwarder" class="HeartbeatForwarder"/> </beans> File: Main.java import java.util.TimerTask; import org.springframework.context.ApplicationContext; import org.springframework.context.ApplicationEvent; import org.springframework.context.ApplicationEventPublisher; import org.springframework.context.ApplicationEventPublisherAware; import org.springframework.context.ApplicationListener; import org.springframework.context.support.ClassPathXmlApplicationContext; public class Main { public static void main(String args[]) throws Exception { ApplicationContext ctx = new ClassPathXmlApplicationContext("context.xml"); Thread.sleep(30 * 1000); } } class HeartbeatTask extends TimerTask implements ApplicationEventPublisherAware { private ApplicationEventPublisher eventPublisher; public void run() { HeartbeatEvent event = new HeartbeatEvent(this); eventPublisher.publishEvent(event); } public void setApplicationEventPublisher(ApplicationEventPublisher eventPublisher) { this.eventPublisher = eventPublisher; } } class HeartbeatForwarder implements ApplicationListener { public void onApplicationEvent(ApplicationEvent event) { if (event instanceof HeartbeatEvent) { System.out.println("Received heartbeat event: " + event.getTimestamp()); } } } class HeartbeatEvent extends ApplicationEvent { public HeartbeatEvent(Object source) { super(source); } }
1. | Implements ApplicationListener |