My new path

At last I started on my own path, still need to learn and do a lot. The first one a puppy is for Kaushik (As I told him, he would get my first painting) :) and its like the first painting as I had no exp in oil paint...anyways lots of complaints from him for that but a promise is a promise so I will not be correcting that painting even if I know its not tht much good...




The second one is for my wife...yeah my life I started realizing about oil painting...yeah its not that easy, this painting is copy right of a guy (I don't remember this id to be given over here) so I tried to do it as he has done but yeah he is a professional one n mine seems just a child started one, mmmm thats k for me....I have learned lots of details from this person's painting (thanks to him, sorry realy I haven't saved from where I have taken this painting).








The third is for Sudhir...my lungoti yaar....yeah he seems very impressed but frm my heart I know its just eye illussion if this painting is seen by any real artist he will defentliy kick me..for the mistakes I have done, but yeah I will b improving on that.

ORA-01005: null password given; logon denied

I was doing a simple POC of JDBC.
My system configuration is

Operating System : Windows XP
OS Architecture : x86
OS Version : 5.1
Database Version : Oracle Database 10g Express Edition Release 10.2.0.1.0 - Beta
Java Version : 1.5.0_16
JDBC Jar File : OJDBC5.jar

When I tried to run the program I was getting "null password given; logon denied", yeah I know the reason :) I cross checked that I have missed giving password but NO wait...I have given it correctly, but still I was getting "null password given; logon denied".

I searched net for any issues related to it, and found one blog where it says change the language settings, I tried it but had no success. So I went and saw was I using correct ojdbc5.jar file, looked like I was using correct jar and that too with correct version of JAVA but still I got the error. after struggling for 3 days I just thought to use the jar provided by ORACLE XE in %ORACLE_HOME%/lib, it contained ojdbc1.4.jar and ojdbc1_g.jar it says to use this jar with JDK1.4 but I was using 1.5 but still wanted to test it. so I went ahead and used 1.4 drivers instead of 5.jar, it just worked out...... :) but still have to figure out why I was getting "null password given; logon denied" when I was using ojdbc5.jar which should be used with JAVA 1.5.

Back reference in Hibernate

I was working on a bug (enhancement) in my project, where in I had to enhance one functionality which is purely written in JSF (some JS) to use the projects metadata framework. First I want to tell what this framework looks like (at high level).

Metadata framework (MTDFRM) its some thing like replicating or showing in UI form to the user for doing addition/editing/deletion of an row in DB (database).

Coming to the problem where it all started, below is the hibernate mapping of a table which I had move it to MTDFRM from conventional JSF:

<hibernate-mapping>
<class lazy="true" update="true" insert="true" table="HOLDER" name="Holder">
.......
.......
<set lazy="true" cascade="all" name="ParamsValues">
<key column="PARAMS_VALUES_SEQNO" null="true">
<one-to-many class="ParamsValue">
</one-to-many>
</key>
</set>
.......
</hbm>

There were 10 properties (including collections) but when I was running the project JSF was complaining about a property not found which was named as _paramsValuesBackref ("_" and "Backref" where appended to paramsValues, as I am like a new bee to the project I spent around 6hours finding which code modified the properties of the table mapping but I never serached in hibernate code, my mistake :(, but some how at last I was able to trace to a file which was appending one extra property to the metadata, it was org.hibernate.cfg.HbmBinder.

As per comments in the file of HbmBinder it says "for non-inverse one-to-many, with a not-null fk, add a backref!", which was perfect fit for the above properties which I had in my mapping file, so I had to add inverse="true" which made the backref no more to be added as extra properties in the metadata, as we know it also helps in telling hibernate that we should not propagate chances made at this collection end ie at ParamsValues end.

This blog doesn't say much about the usage of BackRef by hibernate, as I need to investigate the usage as how hibernate uses this property. Will be posting the finding (need to google or debug) in the next blog to come....

The mistakes I do & repeat it even if I know :)

I am a human :) (wow at last I think I am a human) in my job I do one big mistake, which I know about, I may be doing even more mistakes but I need to hunt them down someday.
So about this mistake, I don't know what technical word is given to this habit, its like this say I am working on a problem (off-course its about my job) and as usual I don't know anything about it, I try to hunt it down as soon as possible but when I am stuck the usual thing normal people do is take help from a person who already knows about it but me me....I don't do this but instead I hunt around and this goes like a circle, few problems yeah I do get solutions, its not gr8 because already ppl know about this and me just discovered, but my inner feeling is like "wow I did some thing gr8" this feeling is a evil in disguises to me as for other problems I hunt and I can't get the solution on time but to get this gr8 feeling I try and try but at the end it like, the problem which can be solved by a person how knows things better can do it in say some 16hour I spent the whole week :( ie 8hours * 5 (40 hours) but still I am now where.......
This is my biggest mistake, I do all over then I release but then latter when I am into problems I forget or negelate my mistake and I am allover again doing the same old mistake :)
The other mistake I do is like, when I am looking for solution for problem 'A' I hunt it down, but during this period if I see other things like 'B', 'C'.....I get involved in tooking into it for getting knowledge about them and I just get deviated from problem 'A'.
I need to over come this things, hope I do and soon as I am getting nearer to 4years of work exp I need to be more smart and more control on my self taking in to account of any problem (technically).

Dos and Don'ts

This is much for myself & if it helps others its good :

1. Code to interface, mmmm still need to get habituated with this.
2. Write test cases.
3. Never mutate the object passed by the parameter ie when we get list as an method parameter do not alter the list in that method , and when we need too then just make a local copy of it and work on the locally created object.
4. When wrapping up the exception do wrap with cause ie try {} catch (SomeException e) { throw new WrapException(e.getMessage()) {}...never do this, we are eating up the actual cause but instead do "throw new WrapException(e)" in the catch.
   
5. Avoid String splitting for business logic flow. like String str1 = getSomeText(); if("Target".equals(choice.split("-")[0].trim()) { //do this....} else {// do that...}

Some other things I want to remember and I forget all the time

1. Apache Tomcat is servlet container, it implements java servlet & jsp spec and provides pure java HTTP web servlet environment.
2. 'Apache Web Server' is C-Lang based HTTP web server.
   

technical blog by my collegues

My colleagues blog at http://pitfalls.wordpress.com which is a good stuff to go through...this ppl r technical gurus... :) gr8 to have thm as my colleagues...

sw architecture links

Nowadays I am going through Hibernate, JSF, Springs and functional requirements of my current project. Going through this stuff all at a time is not good....this I got to know after doing it :)

Today I got a good links on Software Architecture, this link is of an google group http://groups.google.com/group/codingthearchitecture?lnk=srg and this one by Markus Voelter http://voelterblog.blogspot.com/

Good article in to JVM internals

This link provides good information about JVM internals.

http://www.artima.com/java/

Books to read:

• Extreme Programming explained by Emrace Change
• Effective Java by Joshua Bloch
• Design Patterns by the Gang of Four
• Concurrent Programming in Java by Doug Lea
• The Pragmatic Programmer: From Journeyman to Master
• Better, Faster, Lighter Java by Brue A. Tate & Justin Gehtland
• Java Threads by Scott Oaks, Henry Wong

and still to come.....

Cricket ball rolling

After all most 2years I was back with ball (cricket ball, 3rd Sat March 08) bowling in nets, I enjoyed every moment of it. SeeBeyond (Sun microsystems) was my first company and there I started playing cricket and then when I changed (joined Intoto) there was no such thing, just work!. now as I joined a new one (Pramati) things seems good over here...people love cricket and they play too.
After having the practice session we had team breakfast and there was another match scheduled on Sunday (4th). I felt great, but then I had pains (not that much), I thought it will go away. On the next day i.e. Sunday we played the match and off-course we won. I came back to home and went to sleep only to find myself in great pains when I woke up :(, I had to take leave on Monday.....my first leave in Pramati :)

Coming back after long time

It has been very long time....since I have posted any, so long that I am working for 3rd company. Hope from now on I will consistent.

Gone are the days

Gone are the days...
When the school reopened in June,
And we settled in our new desks and benches.
When we queued up in book depot,
And got our new books and notes.
When we wanted two Sundays and no Mondays, yet
Managed to line up daily for the morning prayers.
We learnt writing with slates and pencils, and
Progressed To fountain pens and ball pens and then micro tips.
We began drawing with crayons and evolved to
Colour pencils and finally sketch pens.
We started calculating first with tables and then with
Clarke's tables and advanced to calculators and computers.
When we chased one another in the corridors in
Intervals, and returned to the classrooms drenched in sweat.
When we had lunch in classrooms, corridors,
Playgrounds, under the trees and even in cycle shed.
When all the colors in the world,
Decorated the campus on the Second Saturdays.
When a single P.T. period in the week's Time Table,
Was awaited more eagerly than the monsoons.
When cricket was played with writing pads as bats,
And Neckties and socks rolled into balls.
When few played "kabadi" and "Kho-Kho" in scorching sun,
While others simply played "book cricket" in the confines of classroom.
Of fights but no conspiracies,
Of Competitions but seldom jealousy.
When we used to watch Live Cricket telecast,
In the opposite house in Intervals and Lunch breaks.
When few rushed at 1:45 to "Conquer" window seats in our Schoolbus.
While few others had "Big Fun", "Chock-o-bar","kulfi ice" and "Pepsi" at 2:00 Clock.
Gone are the days Of Sports Day, and the annual School Day,
And the one-month long preparations for them.
Gone are the days Of the stressful Quarterly,
Half Yearly and Annual Exams, And the most enjoyed holidays after them.
Of tenth and twelfth standards,
when we Spent almost the whole year writing revision tests.
We learnt, we enjoyed, we played, we won, we lost,
We laughed, we cried, we fought, we thought.
With so much fun in them, so many friends,
So much experience, all this and more.
Gone are the days when we used to talk for hours with our friends.
Now we don't have time to say a HI.
Gone are the days when we played games on the road.
Now we code on the road with laptop.
Gone are the days when we saw stars shining at night.
Now we see stars when our code doesn't work.
Gone are the days when we sat to chat with friends on grounds.
Now we chat in chat rooms.....
Gone are the days where we studied just to pass.
Now we study to save our job
Gone are the days where we had no money in our pockets
and fun filled on our hearts
Now we have the atm as well as credit card but with an empty heart
Gone are the days where we shouted on the road.
Now we don t shout even at home
Gone are the days where we got lectures from all.
Now we give lectures to all... like the one I'm doing now....
Gone are the days
But not the memories, which will be
Lingering in our hearts for ever and ever and Ever and ever and
Ever.....
NO MATTER HOW BUSY YOU ARE,
DONT FORGET TO LIVE THE LIFE THAT STILL EXISTS.
IT WONT BE THERE FOR EVER.

Believe in yourself

Believe in yourself...
in the power you have
to control your own life
day by day.
Believe in the strength
that you have deep inside
and your faith will help
show you the way.
Believe in tomorrow
and what it will bring,
let a hopeful heart
carry you through
for things will work out
if you trust and believe
there's no limit
to what you can do!
By JD

life seems better :-)

We got our salary reviews, & its a good news for me, hope this would continue........ :-) and wish I do have a good career path ahead (Technicaly)

looking forward for review letters

This is the most tensed up moment, today most probabaly we will be getting our review letters and I can't wait to see whats there for me, just hoping the best :-)

job switching

To day my boss forwarded me a mail which was forwareded by his boss (my boss boss :-)) and I found it so intresting that I wana post it.... the mail goes as below

Mr.Gopalakrishnan succeeds Mr.Ratan Tata as Chairman of Tata Sons Ltd.,the
holding company for many of the Tata Bluechips like Tata Steel, Tata
Motors,Tata Power, Tata Chemicals, Voltas, etc., Possibly he is the first
non-Tata person to head the Tata Empire.

He is an advert reader & a gifted orator.........

The below article written by him is really interesting!

The grass isn't always greener on the other side !!

Move from one job to another, but only for the right reasons.

It's yet another day at office. As I logged on to the marketing and
advertising sites for the latest updates, as usual, I found the
headlines dominated by 'who's moving from one company to another after
a short stint, and I wondered,why are so many people leaving one job for
another?

Is it passe now to work with just one company for a sufficiently long
period? Whenever I ask this question to people who leave a company, the
answers I get are: "Oh, I am getting a 200% hike in salary"; "Well, I am
jumping three levels in my designation"; "Well, they are going to send
me abroad in six months".

Then, I look around at all the people who are considered successful
today and who have reached the top - be it a media agency, an
advertising agency or a company. I find that most of these people are
the ones who have stuck to the company, ground their heels and worked
their way to the top. And, as I look around for people who changed their
jobs constantly, I find they have stagnated at some level, in obscurity!

In this absolutely ruthless, dynamic and competitive environment, there
are still no short cuts to success or to making money. The only thing
that continues to pay, as earlier, is loyalty and hard work. Yes, it
pays!

Sometimes, immediately, sometimes after a lot of time. But, it does pay.

Does this mean that one should stick to an organisation and wait for
that golden moment? Of course not. After a long stint, there always
comes a time for moving in most organisations, but it is important to
move for the right reasons, rather than superficial ones, like money,
designation or an overseas trip.

Remember, no company recruits for charity. More often than not, when you
are offered an unseemly hike in salary or designation that is
disproportionate to what that company offers it current employees, there
is always unseen bait attached.

The result? You will, in the long-term, have reached exactly the same
levels or maybe lower levels than what you would have in your Current
company.

A lot of people leave an organisation because they are "unhappy". What
is this so-called-unhappiness? I have been working for donkey's years
and there has never been a day when I am not unhappy about something in
my work environment-boss, rude colleague, fussy clients etc.

Unhappiness in a workplace, to a large extent, is transient. If you look
hard enough, there is always something to be unhappy about. But, more
importantly, do I come to work to be "happy" in the truest sense?

If I think hard, the answer is "No".
Happiness is something you find with family, friends, may be a close
circle of colleagues who have become friends.

What you come to work for is to earn, build a reputation, satisfy your
ambitions, be appreciated for your work ethics, face challenges and get
the job done. So, the next time you are tempted to move, ask yourself
why are you moving and what are you moving into?

Some questions are:
* Am I ready and capable of handling the new responsibility? If yes,
what could be the possible reasons my current company has not offered me
the same responsibility?
* Who are the people who currently handle this responsibility in the
current and new company? Am I as good as the best among them?
* As the new job offer has a different profile, why have I not given
the current company the option to offer me this profile?
* Why is the new company offering me the job? Do they want me for my
skills, or is there an ulterior motive?

An honest answer to these will eventually decide where you go in your
career- to the top of the pile in the long term (at the cost of
short-term blips) or to become another average employee who gets lost
with time In the wilderness?

"DESERVE BEFORE YOU DESIRE" -
Dr.Gopalkrishnan,
Chairman TATA Sons.
----------------------------------------------
To good to follow it right :-)

mind....unstable

Don't know why but this days my mind is playing trick on me, things seems good at a moment and chances in the next.....as I am IT eng, I have so much yet learn but unable to concenrate, hope I can control myself & just be on my path :-)..........I am thinging of reading JBI (JSR 208) specifications atleast one chapter till this day ends........

thats me :-)

My first gear....

This is my first kickoff for bloging & more yet to come........ :-)