Lombok framework for Java by Eric Lefevre

http://www.meetup.com/singasug/events/220813337/

Transcript

1. Lombok Eric Lefevre-Ardant @elefevre
2. @elefevre http://ericlefevre.net/ elefevre@palo-it.com Eric Lefevre-Ardant
3. http://brownbaglunch.asia/ “Will Speak For Food” Brown Bag Lunch Singapore
4. Lombok
5. Demo https://www.flickr.com/photos/davidchief/518037785/
6. From this... Reduced boiler-plate code
7. From this... Reduced boiler-plate code to this...
9. How to make it work
10. Add lombok.jar to your classpath ...with Maven: <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.2</version> <scope>provided</scope> </dependency> How to make it work
11. Also, plugins • Eclipse • NetBeans • IDEA IntelliJ How to make it work
12. Features
13. @Data Features
14. @Data and friends • @Getter & @Setter • @ToString • @EqualsAndHashCode • @NoArgsConstructor • @RequiredArgsConstructor • @AllArgsConstructor Features
15. @Data and friends • @Getter & @Setter • @ToString • @EqualsAndHashCode • @NoArgsConstructor • @RequiredArgsConstructor • @AllArgsConstructor Features And... @Value
16. Demo https://www.flickr.com/photos/myprofe/2255453988/
17. Under the hood
18. • Annotation Processor • Injects code into the AST at compilation time Under the hood
19. Demo https://www.flickr.com/photos/freefoto/3556983909/
20. Any performance impact?
21. No Any performance impact?
22. @NonNull @Builder @SneakyThrows @Log4j, @Slf4j... @Synchronized Other features
23. @Wither (experimental) @Delegate (experimental) And more!
24. • Easy to implement • Easy to remove • No performance impact To sum up
25. Questions? http://projectlombok.org/ • Easy to implement • Easy to remove • No performance impact
26. Creative Commons License These slides are made available under the Creative Commons Attribution License. You may share, modify this document as much as you wish, as long as you give attribution to me. For example, include a link to http://ericlefevre.net/ somewhere. To the best of my knowledge, all the pictures included were also released under this same license. Links to originals are included. Details on the license: http://creativecommons.org/licenses/by/3.0/