From f8b3056dc4f61251aba7adf627c942c85e8618ca Mon Sep 17 00:00:00 2001
From: Reinier Zwitserloot @Value
is the immutable variant of @Data
; all fields are made private
and final
by default, and setters are not generated. The class itself is also made final
by default, because immutability is not something that can be forced onto a subclass. Like @Data
, useful toString()
, equals()
and hashCode()
methods are also generated, each field gets a getter method, and a constructor that covers every
argument (except final
fields that are initialized in the field declaration) is also generated.
- In practice, @Value
is shorthand for: final @ToString @EqualsAndHashCode @AllArgsConstructor @FieldDefaults(makeFinal = true, level = AccessLevel.PRIVATE) @Getter
, except that explicitly including an implementation of any of the relevant methods simply means that part won't be generated and no warning will be emitted. For example, if you write your own toString
, no error occurs, and lombok will not generate a toString
. Also, any explicit constructor, no matter the arguments list, implies lombok will not generate a constructor. If you do want lombok to generate the all-args constructor, add @AllArgsConstructor
to the class.
+ In practice, @Value
is shorthand for: final @ToString @EqualsAndHashCode @AllArgsConstructor @FieldDefaults(makeFinal = true, level = AccessLevel.PRIVATE) @Getter
, except that explicitly including an implementation of any of the relevant methods simply means that part won't be generated and no warning will be emitted. For example, if you write your own toString
, no error occurs, and lombok will not generate a toString
. Also, any explicit constructor, no matter the arguments list, implies lombok will not generate a constructor. If you do want lombok to generate the all-args constructor, add @AllArgsConstructor
to the class. You can mark any constructor or method with @lombok.experimental.Tolerate
to hide them from lombok.
It is possible to override the final-by-default and private-by-default behaviour using either an explicit access level on a field, or by using the @NonFinal
or @PackagePrivate
annotations.
It is possible to override any default behaviour for any of the 'parts' that make up @Value
by explicitly using that annotation.
-