I am sure this is obvious stuff but anybody can overlook it, so I thought of adding it in my blog. Many programmers and database designers are using surrogate keys instead of natural keys as PKs (primary keys) now a days. Numeric surrogate keys, obviously are easier and better performance Read more…
Like a lot of other people, I faced problems in enabling Java in Firefox on Suse 64 bit OS. But it is working now so I thought of writing the obstacles and how to get rid of them. Basically it comes down to 2 things:
1. You have to make Read more…
OOAD (Object oriented analysis & design)
Scope:
As most of you already know, OOA (Object-oriented analysis) and OOD (Object-oriented design) are put together and called as OOAD. To keep the discussion short I won’t be writing anything on the history of OOAD. Instead, let’s Read more…
Applicable to JBoss 4.0.4 GA:
Suppose you are using jdk 1.5 features in JSPs but they fail with following exception
jboss jsp Syntax error, parameterized types are only available if source level is 5.0
that means you need to enable jdk 1.5 vm support for Read more…
Evince is default document viewer for PDF files on SuSE 10.2. I tried to print pdf files opened in Evince but could not get them to print. Sometimes no error is reported (not even in CUPS error log) but document does not print at all. At other times “Broken Read more…
If you face this error – fix is to change “server timeout delay” under Window > Preferences > Server to higher value.
From ‘normal’ I changed that to ‘long’. Server started up in 55s, but still I received similar error , only time was changed to 100s now.
I set it to Read more…
What is CUPS-PDF
CUPS-PDF acts as a virtual printer but instead of printing hard copies of your files, it prints PDF files as output. It appears as a printer under printer list on your machine, and if you select that you would get a pdf file Read more…
If you face problem “mail.jar not found” on configuring JBoss 5 profile in Eclipse then the reason is JBoss 5 moved server/default/lib*.jar to server/common/lib folder. Fix for this problem is to change jboss5.serverdef under eclipse (${ECLIPSE_HOME}/plugins/org.eclipse.jst.server.generic.jboss_1 Read more…
