Where can I see Controller source code

Question

Hello all,
My question might be stupid for some ADF gurus, however many people we found that R12 Pages have lots of code and there is not too much documentation about how to customise a controller.
1. I can see the *.class of my controller in the $JAVA_TOP/oracle/apps/ar/cusstd/createcus/webui/ArCreCusCO.class on my server, BUT I only see all the code encrypted when I open JDeveloper. So I guess I am doing all wrong.
2. I want to change ArCreCusCO.class. I see many people say hey I customised XYZ controller but how they found the code and proceed to change it is the least of my headaches
3. Do I need to configure something in JDeveloper so that I can see the server classes to my JDeveloper is this what they do, if so how you do it ????
4. I saw something in the Help page saying Adding components to the OA Extension what the heck is this ???
Thanks for illuminating some newbie in ADF.
With the new Java philosophy some of 12 years experience developers we are starting from scratch due to this new architecture.
Hector.-
p.s. Any input will be taken, however don't make reference to the Oracle Tutorial, this is a piece of cake example I need some Hands-On example ;-)

Answer 1

hi hbono99
1.) as u can c .class in java top ,that is compiled code as source code is not delievered by oracle,so u need to decompile this ".class" file to see the source code,JAD decompiler version 1.5.8 will be latest .although it would be useful to see the source code ,but sometimes decompiled class create problems when try to compile again.
2.) u can make changes in the ArCreCusCO.class after decompiling that and compile again the same to generate the class file ,bcz u can put only class file on the server,BUT this would be lethal to change the standard class,and from here concept of Extension come into the picture ,u need to extend this class."customised XYZ " means the extesion of the parent class,and to do the extension u dont dont need the source .
3.) u cant see the source code of a .class in Jdeveloper ,there is no such type of setting.
4.) To extend the ArCreCusCO.class,u need to create a workspace followed by creation of a project with in the workspace in Jdeveloper
process to extend the class
a.)create wokspace and project
b.) create the same package in which the ArCreCusCO.class is residing ,under the \jdev\myprojects\ in your Jdeveloper
c.) right click on project ,go to create new class,here u will find the option to metion the package where u want to put the extended class(normal package starts with xx.oracle.----) plus option to mention the classs nmae u want to extend
d.) click ok at last ,u will get your extended class
e.) source code generaly has two methods processRequest and ProcessFormRequest ,u can add the code according to the requirement .
extension works bcz inside both the method it calls super ,so first it executes all the methods the parent class in your case ArCreCusCO.class and then control comes to extended class,now your code will get executed ,which will accomliseh your requirement
f.)tranaser the class file of extended file to server , to add this extended class with seeded page u need personalize the page ,there u will find the option to add your class ,u mention your class with compete package (the way as we import the file with their package names in our source code,here import is not required)
thanx
Pratap