In Java, threads are a fundamental way to achieve concurrent programming. However, one of the common points of confusion is the difference between calling Thread.start() and calling Runnable.run() directly. This blog will clarify these differences and dive into the internal workings of the start() method, especially how it leverages native (platform-specific) code. Key Differences Between […]
Java’s java.util.concurrent package provides a robust framework for managing threads. Two commonly used thread pools from the Executors class are newCachedThreadPool() and newFixedThreadPool(int nThreads). In this blog, we will delve into the differences, use cases, examples, and best practices for these thread pools. Overview 1. newCachedThreadPool() 2. newFixedThreadPool(int nThreads) Key Differences Feature newCachedThreadPool newFixedThreadPool Thread […]
Understanding Load Balancers, Distributed Systems, and Consistent Hashing In modern software architecture, designing scalable and reliable systems is a key challenge. This article will explore the core responsibilities of load balancers, the design of distributed systems, and the role of consistent hashing in addressing key challenges. We’ll use the example of a hypothetical user-order management […]
ICANN: The Central Authority The Internet Corporation for Assigned Names and Numbers (ICANN) acts as a central authority that manages the global Domain Name System (DNS) and coordinates the unique allocation of IP addresses and domain names. ICANN maintains a source of truth for domain names and IP addresses but does not directly handle DNS […]
In object-oriented programming, inheritance allows a child class to inherit properties and methods from a parent class. Translating this concept into database design can be challenging, as databases are inherently relational. There are four common ways to represent inheritance in databases: Mapped SuperClass, Joined Table, Table per Class, and Single Table. In this blog, we’ll […]
When designing a database schema, choosing an appropriate primary key is critical. A primary key must be unique, efficient for indexing, and fit the use case’s security and performance requirements. This article delves into why UUIDs (Universally Unique Identifiers) are often used and how they compare to other primary key strategies like auto-incremented integers or […]
When designing software systems, maintaining a clean separation of concerns is crucial. One common pitfall is mixing database interaction code with business logic, which leads to tightly coupled components. The Repository Pattern is an effective design strategy to address this by abstracting the persistence layer from the business logic. This approach makes your application more […]
When developing Java applications, interacting with a database is often essential. However, managing database interactions can be complex, especially when writing raw SQL queries and manually mapping results to Java objects. This is where JDBC, JPA, and ORM frameworks like Hibernate simplify the process. Let’s explore how these technologies work, their differences, and practical examples […]
When building robust REST APIs in Spring Boot, exception handling plays a crucial role in providing meaningful responses to clients while ensuring security and maintainability. This blog delves into best practices for handling exceptions in Spring Boot applications, focusing on the use of @ControllerAdvice to centralize exception handling. Why Handle Exceptions Gracefully? Typical Flow in […]
Spring Boot is a framework designed to simplify the configuration and setup of other Spring projects. It provides an opinionated view of the Spring ecosystem, establishing sensible defaults based on best practices while allowing for easy customization. Contrary to common misconceptions, Spring Boot is not an add-on but a standalone project that streamlines and automates […]