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Traditional ways of software development focus on DB-first implementation methodology. But we are in the realm of latest developments and ORM models has taken us to a level that is was a complex ordeal some years back. Eventhough a thorough domain/ERD based approach provides some advantages, there are far more overall improvements to development and…
Extension methods are a way to add methods to a class without changing its source code or adding it into a derived class. Creating extension methods example Define extension method – public static class StringExtensions { public static string Reduce(this String str, int numOfWords) { if (numOfWords <= 0) return str; var numWords = str.Split(‘ ‘); if (numOfWords >= numWords.Length) return str; return String.Join(” “, numWords.Take(numOfWords)); } } Shorten is an extension class on the String class. Adding as above, we were able…
We use events and delegates to extend applications and to implement loose coupling. Rather than adding various method calls within an implementation and then recompiling the class, we publish the need to call a set of methods as an event from the class that will invoke those methods (publisher). The publisher will thus define the delegate which will act…
Delegates is a way to support addition of multiple features (eg: methods) to a framework without the need to recompile the core class that uses these methods. Delegate is a reference to a function/s and is itself an object (derived from MulticastDelegate) that knows how to call a method or group of methods. The…
Parallel execution has been one of the core techniques of programming languages that enables and stabilizes the heavy orchestrated flow of information across information management systems. All Object Oriented Programming languages provides couple different ways to implement this to function smoothly under heavy and stressful load 🙂 A better way was introduced in C# which…
Software Project Size is of great importance since it determines the level of management controls and the types of tools and technologies required for a software project. Accordingly, software projects are classified into 6 major categories as follows (this basic yard stick is used in all of the diversified software development and project management methodologies)…
Software Engineering is and will be the backbone and driving force behind the technological advancements that we enjoy and that will lead us to greater realms of information and knowledge management. Its good for us to refresh our basics and foundations. Software Engineering is a discipline which was conceptualized, developed and is constantly reviewed for…
Design patterns in general helps you to implement standardized and efficient solutions to software design and programming problems. Design patterns are not pure inventions like a light bulb or a car. They are derived patterns that software engineers and architects found that could be standardized to be used to solve similar problems categorized across 3…
Lambda expressions are anonymous methods that does not have access modifiers, name or a return. They are used for convenience (less code) and makes code more readable. Lambda expression takes the form below – arg => expression //spelled as argument goes to expression This can be used in 3 distinct ways as below – ()…
Below is a sample, detailed, PERL script for backing up your web centric Linux server. It includes ways to creating tgz of required areas, pushing them to magnetic tapes, other backup servers and even on to desktops – Code: #!/usr/bin/perl use POSIX qw(strftime); umask 0000; ##################################################### # This Program is a custom…
Here is a samlpe Perl Program that gives you an outline on how to deal with cleaning DB on a routine basis (ofcourse scheudled via cron), log the activity as well as maintain the required historic data in the Database. It executes the sql stored in a CTL file by issuing Oracle SQL Plus command…