NEW in lombok 1.14: You can create
lombok.config files in any directory and put configuration directives in it. These apply to all source files in this directory and all child directories.
The configuration system is particularly useful for configurable aspects of lombok which tend to be the same across an entire project, such as the name of your log variable. The configuration system can also be used to tell lombok to flag any usage of some lombok feature you don't like as a warning or even an error.
Usually, a user of lombok puts a
lombok.config file with their preferences in a workspace or project root directory, with the special
config.stopBubbling = true key to tell lombok this is your root directory. You can then create
lombok.config files in any subdirectories (generally representing projects or source packages) with different settings.
An up to date list of all configuration keys supported by your version of lombok can be generated by running:
java -jar lombok.jar config -g --verbose
A sample of available configuration options (see the feature pages of the lombok features for their related config keys, as well as
java -jar lombok.jar config -g for the complete list):
true, generated setters will 'chain' by default (They will return
thisinstead of having a
true, generated setters and getters will simply be named the same as the field name, without a
true, lombok will not generate a
@java.beans.ConstructorPropertiesannotation when generating constructors. This is particularly useful for GWT and Android development.
error. Some examples of values for (featureName) are: "
experimental" (flags use of any of the experimental features), "
sneakyThrows", or "
Configuration files are hierarchical: Any configuration setting applies to all source files in that directory, and all source files in subdirectories, but configuration settings closer to the source file take precedence. For example, if you have in
/Users/me/projects/lombok.config the following:
lombok.log.fieldName = foobar
lombok.log.fieldName = xyzzy
@Logannotations will use
foobarinstead of the default
logas a field name to generate in all your projects, except for your project in
xyzzyis used instead.
To restore a configuration key set by a parent config file back to the default, the
clear option can be used. For example, if a parent configuration file has configured all use of
val to emit a warning, you can turn off the warnings for a subdirectory by including in it a
lombok.config file with:
Some configuration keys take lists. For lists, use
+= to add an entry. You can remove a single item from the list (useful to undo a parent configuration file's setting) with
-=. For example:
lombok.accessors.prefix += m_
Comments can be included in
lombok.config files; any line that starts with
# is considered a comment.
To stop lombok from looking at parent directories for more configuration files, the special key:
config.stopBubbling = true
Lombok normally adds
@javax.annotation.Generated annotations to all generated nodes where possible. You can stop this with:
lombok.addGeneratedAnnotation = false
Lombok can add the
@SuppressFBWarnings annotation which is useful if you want to run FindBugs on your class files. To enable this feature, make sure findbugs is on the classpath when you compile, and add the following config key:
lombok.extern.findbugs.addSuppressFBWarnings = true
lombok.fieldDefaults.defaultPrivate = true
lombok.fieldDefaults.defaultFinal = true
@FieldDefaultsdocumentation for more.