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bdkosher/Personal_Dev_Idioms.md

Last active December 3, 2019 21:23
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Personal_Dev_Idioms.md
  • Use Spring Boot
  • Use Lombok
  • Apply the @RequiredArgsConstructor pattern to use constructor injection that feels like field injection
  • Use Java 8 Date/Time API -- do not use java.util.Date or Joda
  • Use Spring Web -- do not attempt to use JAX-RS
  • Do not apply inheritance with your Spring controllers
  • Do not package by layer (and definitely do not put different layers into separate maven sub-modules)
  • Minimize use of for loops. Should be able to get by with Stream API for 95% of use cases
  • Majority of classes should be 20 SLOC or less
  • Inheritance is an ultimately expensive mechanism for code reuse. Composition pattern is better.
  • Instead of passing many arguments, pass a single argument of a custom type with a Builder API (@Builder)
  • Unit test only the public interface
    • Feel free to make internal methods package-private by default and write test cases, but afterwards delete the tests and make the method private (?)
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