Course term: Spring 2012
Website: Official course website.
Course Professor: Prof. Ken Backlawski
Textbook: Object-Oriented Software Engineering Using UML, Patterns, and Java (3rd Edition)
Popularity: 1% [?]
February 20th, 2012 — NEU MSCS
Course term: Spring 2012
Website: Official course website.
Course Professor: Prof. Ken Backlawski
Textbook: Object-Oriented Software Engineering Using UML, Patterns, and Java (3rd Edition)
Popularity: 1% [?]
February 20th, 2012 — Djitz Life Journey
Some of my friends are curious about what actually I learn on the Master of Computer Science program I’m taking now.
And although sometimes I post about some of the course lessons and notes on my blog, I think it’s a good idea if I write a central page that organized these posts and categorized them to the courses I took. These will also serve as notes both while I’m in the program, and someday when I completed the program.
The following are courses that I took, and I’m specializing in Database management, for a complete list of courses that the program offers, check the Northeastern MSCS program website. Continue reading →
Popularity: 1% [?]
February 16th, 2012 — NEU MSCS

Course term: Spring 2012 – Northeastern University
Website: course official website.
Course Professor:Professor Mirek Riedewald
Textbook: Data Mining: Concepts and Techniques, Third Edition (The Morgan Kaufmann Series in Data Management Systems)
Some of the outline item will have a separate detailed post.
Continue reading →
Popularity: 1% [?]
November 27th, 2011 — Guides
We all love good and commented codes, but most of us either don’t know how to write a good comment for our codes, or just plain lazy to write one.
In Java, JavaDoc is pretty much the industry standard when it comes to auto-generated code tool. And as a strong believer of good software development practice, I always put comments on my code.
To save time, I created this template for methods so I can always refresh myself about how to write a good JavaDoc for my code. These codes are taken from the Java SDK source codes, so talk about how the creator of the Java write their comments (no one can be more expert than them I suppose). Continue reading →
Popularity: 3% [?]
August 25th, 2011 — Reviews
Think of starting Scrum Agile Development in your team? but you’re not so sure where to start? read the Scrum Primer!
Continue reading →
Popularity: 4% [?]
May 10th, 2011 — NEU MSCS
My notes of XML schema from Methods of Software Development course (CS6520) in Northeastern University. Continue reading →
Popularity: 8% [?]
April 19th, 2011 — NEU MSCS
This is just going to be a very short notes about difference between the getDeclaredAnnotations and getAnnotations method of Java java.lang.Class<T> class.
I was googling for the answer but didn’t immediately got any article that explains it, so I thought why I not create it myself.
So what is the difference: Continue reading →
Popularity: 7% [?]
December 20th, 2010 — NEU MSCS
Ok, so maybe I’m done with the Database Management course, but that doesn’t mean that I’m done playing around with the database. This is just some easy to follow guide how to see the difference that an index made in a real database system using MySQL.
To see the significant time difference of a query with and without index, we will need to generate a significant amount of records and you know I’m not talking about a hundred or two hundred records here, I’m talking about at least one hundred thousand (100,000) records to one million (1,000,000) records.
The first question that probably come to your mind is ‘How can I create such huge amount of data?’. The answer is you don’t, let an application do that for you, and its name is Benerator. Anyway, let’s see the steps I did for this query performance test.
Popularity: 7% [?]
December 12th, 2010 — NEU MSCS
As my final exam on Database Management Course closely approaching, I think I’m a bit forced (in a good way) to write some notes on the topics I’ve learned so far. This time it’s the notes on how to find candidate key of a given relation.
Lately after I started post my database notes on conflict and view serializability, and BCNF and 3NF check, I see increased visitors traffic to my blog. Some visitors actually visited my blog to find how to find candidate keys of a relation. I just have the time now to write this post, hopefully it’s not really too late.
Enough for the introduction, get your pencil and paper, let’s find that candidate keys!
Popularity: 39% [?]
December 12th, 2010 — NEU MSCS
Few weeks ago we were required to learn an Object Relational Mapping (ORM) concept in our Introduction to Database Management System course. The ORM our professor wanted us to use is Apache OpenJPA. Not really sure what was the reason he chose Apache OpenJPA over JBoss Hibernate that is more commonly used in the industry.
Although both Hibernate and OpenJPA are JPA compliant, which means that they follow the JPA standards that were set by Java, tutorials and discussion of OpenJPA is a lot fewer than of Hibernate. This means that whenever we encounter trouble with OpenJPA, the answer is not always there.
What makes it even a bit worse is that even getting started with OpenJPA is not that easy. So just in case any of you have problem with it. This is my notes and tutorial of how to kickstart using OpenJPA with Eclipse.
Popularity: 17% [?]