00_Lombok.md

Lombok

What is Lombok?

It automatically generates frequently used code during development such as Getter, Setter, default constructor, toString, etc. using annotations

Lombok Annotations

@Getter

Generates get methods for all fields declared within a class

@RequiredArgsConstructor

• Generates a constructor with all final fields as arguments
  • Fields without final are not included in the constructor
• Reason for use
  • To solve the inconvenience of having to continuously modify constructor code every time the dependency relationship of the class changes

@NoArgsConstructor

• Generates a default constructor
• Has the same effect as public Post() {}

@Builder

• Creates a Builder pattern class for the corresponding Class
• When declared at the top of a Class, only fields included in the constructor are included in the builder
• Options
  • toBuilder
    • default = false
    • When set to true, you can call the toBuilder() method on an instance created with the builder to create a new instance via the Builder Pattern based on that instance's values