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Lombok Eric Lefevre-Ardant @elefevre

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@elefevre http://ericlefevre.net/ elefevre@palo-it.com Eric Lefevre-Ardant

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http://brownbaglunch.asia/ “Will Speak For Food” Brown Bag Lunch Singapore

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Lombok

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Demo https://www.flickr.com/photos/davidchief/518037785/

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From this... Reduced boiler-plate code

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From this... Reduced boiler-plate code to this...

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No content

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How to make it work

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Add lombok.jar to your classpath ...with Maven: org.projectlombok lombok 1.16.2 provided How to make it work

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Also, plugins ● Eclipse ● NetBeans ● IDEA IntelliJ How to make it work

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Features

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@Data Features

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@Data and friends ● @Getter & @Setter ● @ToString ● @EqualsAndHashCode ● @NoArgsConstructor ● @RequiredArgsConstructor ● @AllArgsConstructor Features

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@Data and friends ● @Getter & @Setter ● @ToString ● @EqualsAndHashCode ● @NoArgsConstructor ● @RequiredArgsConstructor ● @AllArgsConstructor Features And... @Value

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Demo https://www.flickr.com/photos/myprofe/2255453988/

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Under the hood

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● Annotation Processor ● Injects code into the AST at compilation time Under the hood

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Demo https://www.flickr.com/photos/freefoto/3556983909/

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Any performance impact?

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No Any performance impact?

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@NonNull @Builder @SneakyThrows @Log4j, @Slf4j... @Synchronized Other features

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@Wither (experimental) @Delegate (experimental) And more!

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● Easy to implement ● Easy to remove ● No performance impact To sum up

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Questions? http://projectlombok.org/ ● Easy to implement ● Easy to remove ● No performance impact

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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/