工厂

来源：互联网发布：歌曲录制软件编辑：程序博客网时间：2024/05/17 09:41

import java.util.Random;

abstract class UiData
{
public void DoLogic()
{
  Random pRandom = new Random();
  m_iData = pRandom.nextInt(100);
  pRandom = null;
}
public abstract void DoView();
protected int m_iData;
}

class UiView_480_272 extends UiData
{
@Override
public void DoView()
{
System.out.println("View 480 * 272: "+m_iData);
}
}

class UiView_320_240 extends UiData
{
@Override
public void DoView()
{
System.out.println("View 320 * 240: "+m_iData);
}
}

class UiView_NUM extends UiData
{
@Override
public void DoView()
{
System.out.println("Dos: "+m_iData);
}
}

abstract class UiFactory
{
public abstract <T extends UiData> T GetUi(Class<T> c);
}

class CE600_UiFactory extends UiFactory
{
@SuppressWarnings({ "finally", "unchecked" })
@Override
public <T extends UiData> T GetUi(Class<T> c)
{
  // TODO Auto-generated method stub
  UiData pUiData = null;
  try
  {
   pUiData = (UiData)Class.forName(c.getName()).newInstance();
  }
  catch( Exception e)
  {
   throw e;
  }
        finally
        {
            return (T)pUiData;
        }
}
}

class DOS_UiFactory extends UiFactory
{
@SuppressWarnings({ "finally", "unchecked" })
@Override
public <T extends UiData> T GetUi(Class<T> c)
{
  // TODO Auto-generated method stub
  UiData pUiData = null;
  try
  {
   pUiData = new UiView_NUM();
  }
  catch( Exception e)
  {
   throw e;
  }
        finally
        {
            return (T)pUiData;
        }
}

}

//---------------------------------------------------

class FactoryClient
{
public static void Client()
{
  UiFactory pUiFactoryView = new CE600_UiFactory();
  UiData pUiData1 = pUiFactoryView.GetUi(UiView_480_272.class);
  pUiData1.DoLogic();
  pUiData1.DoView();
  pUiData1 = null;
  UiData pUiData2 = pUiFactoryView.GetUi(UiView_320_240.class);
  pUiData2.DoLogic();
  pUiData2.DoView();
  pUiData2 = null;
  pUiFactoryView = null;

  UiFactory pUiFactoryDos = new DOS_UiFactory();
  UiData pUiDataDos = pUiFactoryDos.GetUi(UiView_320_240.class);
  pUiDataDos.DoLogic();
  pUiDataDos.DoView();
  pUiDataDos = null;
  pUiFactoryView = null;
}
}