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Deepinder Singh

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since Jul 05, 2007
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Recent posts by Deepinder Singh

I am developing a drill down component for the CRUD app for a finance transaction dashboard.
The UI part and the service layer has been completed(TDD approach) using - dwr,spring,hibernate,xstream,aop,oracle,weblogic,displaytag,commons validator,junit,ant.

The drill down component is left to integrate.The app is a framework that can handle new domain objects/entities(they can be added declaratively).

I have come across your book and will be purchasing it(hope to get selected for the giveaway).The sample chapters 2,11 were very helpful.

Question: I want to use comet(DWR) in a web logic appserver, that can scale. What are the ways to achieve this?I was thinking of adding a cometd server as a hook on top weblogic(if this is possible).I want to be able to have a app that is similar to the CRUD app that can handle 100-200 clients.What is the strategy to implement the 'continuations' like approach in weblogic?

This is for handling finance transaction in the millions that are paged and displayed on the screen.So if one user changes something it should reflect on the other dashboard screens.
I had a query regarding exams 399 and 824 of IBM certification....I
wanted to know which would be more beneficial ...considering I am not
going to be workin in IBM software although want to learn the JSR 168
spec thoroughly...basically which one of these exams is more generic
and personnally beneficial for a person who might not get to work on
IBM software...although needs to have a certification related to
portals..these are the only certifications related to portals in the
market...I have been on a project developing portlets on liferay...having JSR168 implemented...
14 years ago
The method signature m1(A) matches with that of the Parent class A....This is done by the compiler before executing...
The Thread.sleep() method works for the currently executing thread...and I think the code is working as expected...
An abstract class is not a concrete either provides some(zero or one) implementation for methods it inherits from another class or implements an interface....

An abstract class cannot be used directly....the first concrete implementation in the inheritance hierarchy will provide all or some features/behavior that would be that of an abstract the abstraction is the behavior which belongs to an abstract class which is inherited by the concrete class....
for eg.

class Parent{
public void method1(){}
abstract class Child extends Parent{
public void method2(){}
public class Concrete extends Child{
public static void main(String args[]){
new Concrete().method2();//the method2 is behavior inherited and //abstracted out in the code of class Child.
method local inner classes have access to member variables of the enclosing class.. if a local variable needs to be used it should be declared final....try writing a small program...if your into software will find it used as part of IBatis ORM mapping tool usage... some interviews lined up...
15 years ago
I wanted to thank the authors of the book SCJP Sun Certified Programmer for Java 5 Study Guide (Exam 310-055)

went thru it twice...including all the instructions....I have a job as s/w devoper in it helped having a focused book...was really made to laugh alot while studying.....

In all once more thankyou..

ps:the tip 'learn answers from other questions' works
15 years ago