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package springexec;
public class HelloWorldCountDownTask implements Runnable {
private String name;
private int count = 4;
public HelloWorldCountDownTask(String name) {
this.name = name;
}
public void run() {
while( count > 0 ){
count--;
if (count == 0){
System.out.println(name + " says 'Hello World!'");
} else {
System.out.println(name + " : " + count);
Thread.yield();
}
}
}
}
package springexec;
import org.springframework.core.task.TaskExecutor;
public class TaskExecutorExample {
private TaskExecutor taskExecutor;
public TaskExecutorExample(TaskExecutor taskExecutor) {
this.taskExecutor = taskExecutor;
}
public void executeTasks(){
this.taskExecutor.execute(new HelloWorldCountDownTask("Anna"));
this.taskExecutor.execute(new HelloWorldCountDownTask("Beth"));
this.taskExecutor.execute(new HelloWorldCountDownTask("Charlie"));
this.taskExecutor.execute(new HelloWorldCountDownTask("Daniel"));
}
}
package springexec;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.core.task.TaskExecutor;
public class SyncTaskExecutorExample {
public static void main(String args[]){
ApplicationContext ctx = new ClassPathXmlApplicationContext("springexec/exec.xml");
TaskExecutor taskExecutor = (TaskExecutor) ctx.getBean("syncTaskExecutor",TaskExecutor.class);
TaskExecutorExample example = new TaskExecutorExample(taskExecutor);
example.executeTasks();
}
}
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-2.5.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.5.xsd">
<bean id="threadPoolExecutor" class="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor">
<property name="corePoolSize" value="5"/>
<property name="maxPoolSize" value="10"/>
<property name="queueCapacity" value="25"/>
</bean>
<bean id="syncTaskExecutor" class="org.springframework.core.task.SyncTaskExecutor"/>
<bean id="timerTaskExecutor" class="org.springframework.scheduling.timer.TimerTaskExecutor">
<property name="delay" value="3000"/>
<property name="timer" ref="timer"/>
</bean>
<bean id="timer" class="java.util.Timer"/>
<bean id="logger" class="springexec.Logger"/>
</beans>
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