Skip to main content

Project Lombok is New Feature or plugin

Project Lombok is a Java library tool that generates code for minimizing boilerplate code. The library replaces boilerplate code with easy-to-use annotations.

For example, by adding a couple of annotations, you can get rid of code clutters, such as getters and setters methods, constructors, hashcode, equals, and toString methods, and so on.

We have written a lot of boilerplate code such as getter, setter, equals, hashCode methods etc. in Java for years. In some cases, this causes problems in subjects like clean and readable code.

For such situations, Project Lombok saves our eyes  . Also, you will be able to spend more time on the business logic using Lombok.

“Never write another getter or equals method again, with one annotation your class has a fully featured builder, Automate your logging variables, and much more.”

Project Lombok uses annotations to avoid boilerplate code. In the best cases, only five lines can replace hundreds of lines of code.


@Data
@AllArgsConstructor
@NoArgsConstructor
@Entity
@Table
public class Book {
@Id
@GeneratedValue
private Long id;
private String writer;
private String name;
private String genre;
private String year;
}

Descriptions of used annotations according to JavaDoc:

  • @Data : “Generates getters for all fields, a useful toString method, and hashCode and equals implementations that check * all non-transient fields. Will also generate setters for all non-final fields, as well as a constructor.”
  • @AllArgsConstructor : “Generates a all-args constructor.”
  • @NoArgsConstructor : “Generates a no-args constructor.”
  • @Slf4j : “Causes lombok to generate a logger field.”



Comments

Post a Comment

Popular posts from this blog

Mastering Java Streams: Best Practices and Common Pitfalls

  Introduction Java Streams, introduced in Java 8, have revolutionized the way developers handle collections and data processing in Java. However, mastering Streams requires understanding not just the syntax but also the best practices and common pitfalls that can arise. In this post, we'll explore advanced tips for working with Java Streams, helping you write more efficient, readable, and maintainable code. Table of Contents Introduction to Java Streams Best Practices for Using Streams Leverage Parallel Streams Wisely Avoid State Mutations in Stream Operations Use Method References for Cleaner Code Short-Circuiting Operations for Efficiency Common Pitfalls in Java Streams Overusing Parallel Streams Modifying Collections During Stream Operations Ignoring Lazy Evaluation Improper Use of Optional with Streams Advanced Stream Operations Grouping and Partitioning Collectors and Custom Collectors FlatMap for Complex Mappings Conclusion 1. Introduction to Java Streams Java Streams provid...
Post a Comment
Read more

Fail Fast and Fail Safe Iterator in Java

  The concepts of "fail-safe" and "fail-fast" are often discussed in the context of data structures and algorithms, particularly in Java programming. Let's understand what each concept means: Fail-Safe: Fail-safe refers to the property of a system or data structure that guarantees it will not fail, crash, or produce incorrect results, even when it encounters unexpected inputs or concurrent modifications. In the context of Java collections, a fail-safe iterator is an iterator that does not throw a ConcurrentModificationException if the collection is modified while it's being iterated. Instead, it operates on a copy of the original collection or uses some mechanism to handle concurrent modifications safely. For example, the Iterator returned by HashMap or ConcurrentHashMap in Java is fail-safe. If a collection is modified while an iterator is traversing it, the iterator will continue to operate on the original elements that were present when the iteration ...
Post a Comment
Read more

Dealing with Passwords in Java Applications: 5 Best Practices You Should Follow

 In modern Java applications—whether core Java applications or enterprise-level web applications—working with passwords is inevitable. Passwords are sensitive pieces of information, just like Social Security Numbers (SSNs), and if you’re handling real human data in systems such as online banking or healthcare portals, it’s critical to implement best practices for dealing with passwords securely. Below, I’ll share five essential best practices that I’ve learned and recommend for managing passwords, particularly when you are handling authentication and authorization. While these tips are a good starting point, be sure to tailor them to your application’s requirements and security policies. 1) Use SSL/TLS to Transfer Username and Password When users send passwords over the network, it is crucial to use SSL/TLS to encrypt the communication. This ensures that sensitive information is protected from eavesdroppers. Tools like LDAP and Active Directory are commonly used for storing usern...
Post a Comment
Read more