Skip to main content

Chain of Responsibility Pattern

This pattern I used for handling scenario as follows;

Applying permission on user to view some data is based on many criteria and those are having a sequence.

image

By Appling this chain of responsibility pattern I could able to arrange the code nice manner , very easy to add new criteria as well as change the sequence.

Labels:

Comments

Post a Comment

Popular posts from this blog

Dead Code Problem

Problem Actually this problem occurred when i was doing integration two projects. [Phase1 and phase2 of a project] . Phase 2 is developed on top of the phase1. Parallel phase1 had changed lot . Mean time those were working on phase2 has commented existing phase 1 code without comments . Phase 1 and phase 2 merged with some conflicts. So we commented such places with the descriptive comment . After merged the result code base has merged those phase 2 commented parts. Also there was some of already dead code in phase 1. So it is difficult to understand weather this is actual dead code or commented one from phase 2. Mistake Had left dead dead code and missing comments . Lesson learned Normally developers leave dead code in their original code with the mind of future purpose. But this not a good habit to continue.As long as you use source control ,earlier code may exist. Problem will occur if you are not using such version control. In such a situation you can keep dead code with des...
2 comments
Read more

Recurrent Work–Automate them

Problem Sometimes we do some recurrent works those can be automated. Few months back in a integration of two project I had to create multiple database scripts to merge those two. There are more than twenty scripts.Initially I run those one by one and it took long time to create the DB. Mistake We don’t care to automate those recurrent work .Just Do at the point you need. Once you get to know its recurrent you will regret I could have automate this. Lesson Learned By automating recurrent works [Those can automate] you can save your time
Post a Comment
Read more