In the previous two articles (this & this), we discussed the first four SOLID principles: SRP, OCP, LSP, and ISP. In this article, we will continue with the 5th principle which is Dependency Inversion Principle or DIP in short. Dependency Inversion Principle The Dependency Inversion principle says two things. The high-level modules should…

In the previous article, we have seen Single Responsibility Principle from both the OOP and Microservices perspectives. In this article, we will look at the other principles. The next one is the Open-Closed Principle. Open-Closed Principle This principle states that the modules should be open for extension and closed for modification. For…

SOLID is an acronym for five design principles intended to make object-oriented class designs more flexible, reusable, understandable and maintainable. Robert C. Martin first coined these principles which was later brought to light by many people. Many articles have covered these topics and pointed out these principles with a common…

In the previous two articles, we have seen HTTP/1.1 and HTTP/2 in depth. In this article, we will look at the basics of gRPC and its architecture. gRPC is an open-source high-performance RPC (Remote Procedure Call) framework which Google initially developed as a general-purpose RPC infrastructure to connect a large…

In the previous article, we have seen HTTP/1.1 in detail and what the browsers perform in the background to make it faster. In this article, we will see HTTP2 in detail. Understanding HTTP2 is very essential for every backend developer as, in the future, HTTP2 will be used widely. Today…

HTTP/1 is slow and browsers do a lot in the background — This article is the first of the HTTP & gRPC series. The aim is not to explain what HTTP is but to highlight its design purpose and what the browsers do in the background to give us a better experience. This article enables you to stand at the front of…

What are CyclicBarriers and how they are different from Latches? — Before going onto CyclicBarriers let us quickly touch a little upon Latches. What is a Latch A Latch is a synchronizer in Java Concurrency Framework and its main focus is waiting for a group of related events to complete. The class CountDownLatch let us implement this behavior. The most important thing about Latches is…

The Depths of “Unsafe” class in Java — The Unsafe class is the basis for implementing CAS in Java. In this article, we will understand more about Unsafe and its capabilities. The name of the class Unsafe comes from the fact that it deals with. The sun.misc.Unsafe is really meant to be a low-level VM library interface designed…

Why do immutable classes have some kind of cache associated with them? — Have you ever wondered about the implications of careless designs of Immutable classes and why the immutable classes have an associated cache? Read this article till the end and take your knowledge a little up about immutable classes. And also know about the reasons behind the flyweight design pattern. In…