Hookmethod implementation in Java template method mode

This is the hook usage in Java. Apache mina2.x is used in this way.

Abstract class

Package COM. jadyer. hook; public abstract class iosession {public void write (Object message) {system. out. println (Message); messagesend (this);} public abstract void messagesend (iosession session );}

Finally, the implementation class

Package COM. jadyer. hook; public class myhandler extends iosession {@ overridepublic void messagesend (iosession session) {system. out. println ("AA");} public static void main (string [] ARGs) {New myhandler (). write ("11 ");}}

Console output:

11aa