When do we need the template design pattern? The template design pattern is useful when different components share some functionality and adding a change to one would need duplicate changes in the other component. How do we implement the template design pattern? The template design pattern is a...
The Visitor Design Pattern is a behavioral design pattern. It comes in handy when we have to add a capability to an object with minimal change to the existing object structure. Come, let's dive in!...
What is wrong with the good old SQL searches? There is no support for common languages. Regular expressions do not suffice because they cannot easily handle words that essentially mean the same, i.e., blocked and blocking is one such example. You might miss documents that contain...
Introduction: Binary search is one of the most important algorithms for competitive programming. You may find other uses of binary search too, these are just a few topics mentioned that use binary search heavily: 1. Array problems 2. Geometry problems Let me give you a real-life example, imagine you...
Java generics is a powerful feature introduced in JDK 5.0 that was directed towards improving the quality of code through abstraction. It aims to improve code reusability by providing a mechanism to write classes and functions in such a way that types can be passed...
The command design pattern is a behavioral design pattern. This pattern focuses on encapsulating all the data and related actions of an object. This design pattern allows separating the objects that produce the behavior and the objects that consume them....
The decorator design pattern is a structural design pattern that is used for extending the functionality of existing classes without much of a change in the codebase. You can also look at this design pattern as a wrapper around the existing functionality. Let’s dive into the...
Load balancing is defined as the methodical and efficient distribution of requests across multiple servers. The load balancer sits between client devices and backend servers, receiving and then distributing incoming requests to a server that is healthy and capable of fulfilling them. A load balancer...
Consistent Hashing is a distributed hashing technique that is loosely coupled with the number of servers or objects in a distributed hash table by positioning them in an abstract circle, or hash ring. This allows servers and objects to scale without affecting the overall system....
Today’s technical architecture is inclined towards the distributed system because of the ease of scalability it provides. This scenario demands that we understand the trade-offs made in a distributed architecture, which brings us to the CAP theorem. Let’s begin right away but putting on our...