mainframefactory.java

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package view.com.factory;

import java.awt.Container;
import java.util.HashMap;

import javax.swing.JFrame;

/**
 * 
 * @author linfeng
 * 框架工厂模式
 */
public class MainFrameFactory {

  /**
   * factory 
   * map
   * name
   */
  private static MainFrameFactory factory;
  private static HashMap map = new HashMap();
  private static String name;

  /**
   * 构造函数私有
   */
  private MainFrameFactory() {
    map.put("登录", "view.frame.MainFrame");
    
  }

  /**
   * 工厂模式单例化
   * @param nam 对应的名字
   * @return factory 返回一个工厂
   */
  public static MainFrameFactory getInstance(String nam) {
    if (factory == null) {
      factory = new MainFrameFactory();
    }
    name = nam;
    return factory;
  }

  /**
   * 对象实例化
   * @return frame 框架
   */
  public JFrame getContainer() {
    JFrame frame = null;
    if (map.containsKey(name)) {
      try {
        // System.out.println("name factory:= " + name);
        // System.out.println("(String) map.get(name)" + (String)
        // map.get(name));
        frame = (JFrame) Class.forName((String) map.get(name)).newInstance();
      } catch (InstantiationException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
      } catch (IllegalAccessException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
      } catch (ClassNotFoundException e) {
        // TODO Auto-generated catch block
        e.printStackTrace();
        return null;
      }
    }
    return frame;
  }
}