Java Learning Note-design mode 9 (proxy mode)

Intention

Provides a proxy for other objects to control access to this object.

Public interface sourceable {public    void method ();

public class Source implements sourceable{     @Override public    Void Method () {         System.out.println Original method! ");}           }

public class Proxy implements sourceable{         private source source;         Public Proxy () {        super ();        This.source = new Source (); and adorner mode difference    }     @Override public    Void Method () {        System.out.println ("before decorator!");        Source.method ();        System.out.println ("after decorator!");}    }

The adorner mode differs from the proxy mode:

The adorner pattern focuses on dynamically adding methods on an object, whereas the proxy mode focuses on controlling access to objects. In other words, with proxy mode, the proxy class can hide specific information about an object from its clients. Therefore, when using proxy mode, we often create an instance of an object in a proxy class. Also, when we use adorner mode, it is common practice to pass the original object as a parameter to the decorator's constructor.

　　

Transferred from: http://blog.csdn.net/zhangerqing/article/details/8239539

Java Learning Note-design mode 9 (proxy mode)