Lombok

External

• https://projectlombok.org

Overview

Lombok is a Java annotation library that helps reduce boilerplate code.

Gradle Dependency

dependencies {
    implementation('org.projectlombok:lombok')
}

Annotations

@Slf4j

The annotation generates a SLF4J Logger in the class. It has the same effect as if you were to explicitly add the following lines within the class:

private static final org.slf4j.Logger log = org.slf4j.LoggerFactory.getLogger(MyClass.class);

@Data

https://projectlombok.org/features/Data

Generates:

• Getters for all fields
• Setters for all non-final fields
• A constructor with corresponding arguments for all fields
• A useful toString() method
• hashCode() and equals() implementations that check all non-transient fields

Equivalent to @Getter @Setter, @RequiredArgsConstructor @ToString @EqualsAndHashCode

@RequiredArgsConstructor

Generates a constructor with required arguments. Required arguments are final fields and fields with constraints such as @NonNull.