beaniebaby.java~7~

深入浅出的介绍j2ee的相关基本知识

package javabeans;

import java.awt.*;
import javax.swing.JPanel;
import javax.swing.BorderFactory;
import javax.swing.border.*;
import java.beans.*;
import java.awt.event.*;
import java.util.*;

public class BeanieBaby extends JPanel {
  BorderLayout borderLayout1 = new BorderLayout();
  private float price;	// 新增加的price属性声明
  private String allTiedup;	// allTiedUp属性字段
  private transient PropertyChangeSupport propertyChangeListeners = new PropertyChangeSupport(this);
  private transient Vector mouseListeners;	// PropertyChangeSupport实例，用于消息处理



  public BeanieBaby() {
    try {
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }

  private void jbInit() throws Exception {
    this.setBackground(Color.red);
    this.setBorder(BorderFactory.createRaisedBevelBorder());
    this.setLayout(borderLayout1);
  }
  public float getPrice() {	// price属性的读方法getter
    return price;
  }
  public void setPrice(float price) {	// price属性的写方法setter
    this.price = price;
  }

  public String getAllTiedup() {	// allTiedUp读方法
    return allTiedup;
  }

  public void setAllTiedup(String allTiedup) {	// allTiedUp写方法
     String  oldAllTiedup = this.allTiedup;
     this.allTiedup = allTiedup;
     // 利用PropertyChangeSupport通知监听器属性值变了！
     propertyChangeListeners.firePropertyChange("allTiedup", oldAllTiedup, allTiedup);
   }
   // 事件监听器的注销方法
   public synchronized void removePropertyChangeListener(PropertyChangeListener l) {
     super.removePropertyChangeListener(l);
     propertyChangeListeners.removePropertyChangeListener(l);
   }
   // 事件监听器的注册方法
   public synchronized void addPropertyChangeListener(PropertyChangeListener l) {
     super.addPropertyChangeListener(l);
     propertyChangeListeners.addPropertyChangeListener(l);
   }
  public synchronized void removeMouseListener(MouseListener l) {
    super.removeMouseListener(l);
    if (mouseListeners != null && mouseListeners.contains(l)) {
      Vector v = (Vector) mouseListeners.clone();
      v.removeElement(l);
      mouseListeners = v;
    }
  }
  public synchronized void addMouseListener(MouseListener l) {
    super.addMouseListener(l);
    Vector v = mouseListeners == null ? new Vector(2) : (Vector) mouseListeners.clone();
    if (!v.contains(l)) {
      v.addElement(l);
      mouseListeners = v;
    }
  }
  protected void fireMouseClicked(MouseEvent e) {
    if (mouseListeners != null) {
      Vector listeners = mouseListeners;
      int count = listeners.size();
      for (int i = 0; i < count; i++) {
        ((MouseListener) listeners.elementAt(i)).mouseClicked(e);
      }
    }
  }
  protected void fireMouseEntered(MouseEvent e) {
    if (mouseListeners != null) {
      Vector listeners = mouseListeners;
      int count = listeners.size();
      for (int i = 0; i < count; i++) {
        ((MouseListener) listeners.elementAt(i)).mouseEntered(e);
      }
    }
  }
  protected void fireMouseExited(MouseEvent e) {
    if (mouseListeners != null) {
      Vector listeners = mouseListeners;
      int count = listeners.size();
      for (int i = 0; i < count; i++) {
        ((MouseListener) listeners.elementAt(i)).mouseExited(e);
      }
    }
  }
  protected void fireMousePressed(MouseEvent e) {
    if (mouseListeners != null) {
      Vector listeners = mouseListeners;
      int count = listeners.size();
      for (int i = 0; i < count; i++) {
        ((MouseListener) listeners.elementAt(i)).mousePressed(e);
      }
    }
  }
  protected void fireMouseReleased(MouseEvent e) {
    if (mouseListeners != null) {
      Vector listeners = mouseListeners;
      int count = listeners.size();
      for (int i = 0; i < count; i++) {
        ((MouseListener) listeners.elementAt(i)).mouseReleased(e);
      }
    }
  }




}