import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;

public class MyBean implements PropertyChangeListener {
	private PropertyChangeSupport pcs = new PropertyChangeSupport(this);
	private String name = "default";
	private long time = System.currentTimeMillis();

	public MyBean() {
		pcs.addPropertyChangeListener(this);
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		String oldValue = this.name;
		this.name = name;
		pcs.firePropertyChange("name", oldValue, name);
	}

	public long getTime() {
		return time;
	}

	public void setTime(long time) {
		Long oldValue = this.getTime();
		this.time = time;
		pcs.firePropertyChange("time", oldValue, time);
	}

	@Override
	public void propertyChange(PropertyChangeEvent evt) {
		System.out.println("Property Name = " + evt.getPropertyName());
		System.out.println("Old Value = " + evt.getOldValue());
		System.out.println("New Value = " + evt.getNewValue());

	}
}

import java.awt.Image;
import java.beans.BeanDescriptor;
import java.beans.BeanInfo;
import java.beans.EventSetDescriptor;
import java.beans.IntrospectionException;
import java.beans.MethodDescriptor;
import java.beans.PropertyDescriptor;
import java.beans.SimpleBeanInfo;

public class MyBeanBeanInfo extends SimpleBeanInfo {
	private final static Class<MyBean> beanClass = MyBean.class;

	public MyBeanBeanInfo() {
	}

	@Override
	public BeanDescriptor getBeanDescriptor() {
		BeanDescriptor desc = new BeanDescriptor(beanClass);
		return desc;
	}

	@Override
	public PropertyDescriptor[] getPropertyDescriptors() {
		try {
			PropertyDescriptor name = new PropertyDescriptor("name", beanClass);
			PropertyDescriptor time = new PropertyDescriptor("time", beanClass);

			name.setBound(true);
			time.setBound(true);

			PropertyDescriptor rv[] = { name, time };
			return rv;
		} catch (IntrospectionException e) {
			throw new Error(e.toString());
		}
	}

	@Override
	public EventSetDescriptor[] getEventSetDescriptors() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public int getDefaultEventIndex() {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public int getDefaultPropertyIndex() {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public MethodDescriptor[] getMethodDescriptors() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public BeanInfo[] getAdditionalBeanInfo() {
		// TODO Auto-generated method stub
		return null;
	}


}

import java.util.EventListener;


public interface MyBeanListener extends EventListener {

}

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