JBOSS JMX MBean

任务由JBOSS服务器启动而启动,停止而停止. (jboss-4.0.1sp1)

jboss-4.0.1sp1serverdefaultdeploy

----jmxtest.sar

        ----com.example.mbeans.*      //all classes file

        ----META-INF

             ----jboss-service.xml 

---

HelloMBean.java

package com.example.mbeans;
 
 
public interface HelloMBean {
 
    public void sayHello();
    public int add(int x, int y);
 
    public String getName();
 
    public int getCacheSize();
    public void setCacheSize(int size);
   
    public void start() throws Exception;
    public void stop() throws Exception;
}

---

Hello.java

package com.example.mbeans;
import javax.management.*;

public class Hello
        extends NotificationBroadcasterSupport implements HelloMBean {
 
 public void start() throws Exception{
  System.out.println("-------------------------------------start()");
 }
 
 public void stop() throws Exception{
  System.out.println("-------------------------------------stop()");
 }
 
    public void sayHello() {
        System.out.println("hello, world");
    }
 
    public int add(int x, int y) {
        return x + y;
    }
 
    public String getName() {
        return this.name;
    }
 
    public int getCacheSize() {
        return this.cacheSize;
    }
 
    public synchronized void setCacheSize(int size) {
//        int oldSize = this.cacheSize;
        this.cacheSize = size;
 
        System.out.println("Cache size now " + this.cacheSize);
 
//        Notification n =
//            new AttributeChangeNotification(this,
//         sequenceNumber++,
//         System.currentTimeMillis(),
//         "CacheSize changed",
//         "CacheSize",
//         "int",
//         oldSize,
//         this.cacheSize);
//
// sendNotification(n);
    }
 
    public MBeanNotificationInfo[] getNotificationInfo() {
        String[] types = new String[] {
            AttributeChangeNotification.ATTRIBUTE_CHANGE
        };
        String name = AttributeChangeNotification.class.getName();
        String description = "An attribute of this MBean has changed";
        MBeanNotificationInfo info =
            new MBeanNotificationInfo(types, name, description);
        return new MBeanNotificationInfo[] {info};
    }
 
    private final String name = "Reginald";
    private int cacheSize = DEFAULT_CACHE_SIZE;
    private static final int DEFAULT_CACHE_SIZE = 200;
 
//    private long sequenceNumber = 1;
}

---

jboss-service.xml

 
  Hello Service Jason