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Custom AST transformations with Project Lombok

Alex Ruiz
IBM developerWorks (2011)


Alex Ruiz introduces Project Lombok in this article, discussing some of the programming sugar that makes it unique, including annotation-driven code generation and clean, compact, and readable code. He then draws your attention to one of the more rewarding uses of Lombok: extending it with custom AST (Abstract Syntax Tree) transformations. Extending Lombok will enable you to generate your own project- or domain-specific boilerplate code, but it does require a fair amount of work. Alex concludes with his tips for easing through key stages of the process, along with a freely usable custom extension for JavaBeans.

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