# 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 --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://chloe-codes1.gitbook.io/til/spring/spring-annotations/00_lombok.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.