?? proxysubject.java
字號:
package com.javapatterns.proxy;
public class ProxySubject extends Subject
{
private RealSubject realSubject;
public ProxySubject()
{
}
public void request()
{
preRequest();
if( realSubject == null )
{
realSubject = new RealSubject();
}
realSubject.request();
postRequest();
}
private void preRequest()
{
//something you want to do before requesting
}
private void postRequest()
{
//something you want to do after requesting
}
}
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