Decorator pattern lets a programmer add more functionality to an object without impacting other objects of the class. So off course without inheritance
One of the biggest challenges most software engineers face is, to maintain a badly written code. Refactoring code is a very difficult task, which can break a lot of things in a so called working software. There are only two choices one can make, either add more mess to the code or dig deep into … Continue reading Functional Refactoring
In general it is a very simple pattern. You just wrap your function/method/behaviour with another function which keeps track of the failures/success of the that function (service/DB calls) and opens or closes the circuit for you. Sounds simple enough. It is simple.
Hello, welcome to the second part of "Parallel Programming in Java" series. If you have somehow missed the first part and want to read it now, then read it here. So Part-1 covered the very basic concept of task execution in parallel and how ForkJoin framework helps in writing parallel programs easily. We saw how … Continue reading Parallel Programming in Java – (Part-2)
Dynamic Programming (Memoization) : As usual lets start with the general definition of dynamic programming. "In computer science DP is a method for solving a complex problem by breaking it down into a collection of simpler subproblems, solving each of those subproblems just once, and storing their solutions – ideally, using a memory-based data structure" The general … Continue reading Dynamic Programming