Project Lombok

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- Feature Overview - - -

- Discuss / Help - - -

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- Download! - -

- Version: @VERSION@ | changelog -

- Imagine you have a very simple class: -

public class Mountain { - private final String name; - private final double latitude, longitude; - private String country; -}

- While that is fairly clear, that class is not complete. In fact, it won't compile like that.
- You'll need to add a constructor to initialize those final fields, you probably want getters, a setter for country, - and to be complete, a nice toString as well as an implementation for equals and hashCode. - Eclipse can generate all these methods for you, but then you end up with over 70 lines of boilerplate. It's going to be hard - to see any surprises buried amongst all those lines of code! Lombok has the answer to this problem. -

- So instead of this mess: - - lombok simply offers you an annotation that tells eclipse to generate all this stuff for us silently, without - cluttering up your source file, like so: - -

- Note how we haven't even saved the file yet, but in the outline view you can already see all the various methods generated - by the @Data annotation. That's because lombok is completely integrated into eclipse. The moment you type - the last character of your annotation, all the methods exist, just as if you write the last character on a method declaration. - In other words, lombok is not just an annotation processor! -

- But what about your build process? Lombok works just as well in javac. All you need to do is add - lombok.jar to the class path as you compile. Like so: - -

- @Data is nice, but its certainly not the only boilerplate buster that lombok has to offer. If you need - more fine grained control, there's @Getter and @Setter, and to help you in correctly - cleaning up your resources, @Cleanup can automatically and without cluttering your source files generate - try/finally blocks to safely call close() on your resource objects. That's not all, but for the complete - list you'll need to head over to the feature overview. -

- Ready to install lombok? Start by clicking the download button at the top of this page. Going from clicking that button - to having your eclipse ready to go takes less than 12 seconds - it's that simple. -

- Thanks for checking out Project Lombok, and let us know what you think! -

- If you'd like to read more, check out - Reducing boilerplate code with Project Lombok - written by Michael Kimberlin. -

- I changed my mind - I do want to see the video! -

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