- Scalaを使う会社が増えている
- でも3年経つとレガシー化する
- アプデしようとしてもコストがかかる
Skinny Framework AWScala
ScalikeJDBC(Simple JDBC)
QueryDSL
Skinny Framework
- Scala on Rails
- Full-stack features
- Web Development
(Good Parts)
based Class-based OOP
- Scala case class is simpler than Java beans with (great) Lombok
- Scala high-order functions are simpler than Java 8 Stream API
- Immutability is well-treated in Scala
- Java decisively beats Scala with compile speed
Immutability
- Do away with mutable states
Trait Chaos
- Mixing traits can show you terrible chaos
Coding Style Tips
- Use sbt-scalariform without question(cf. gofmt)
The Real As-Is
- Abstraction often improves things, but that:s not always the best way to solve real-world problems
Skinny ORM
ORM built on ScalikeJDBC
not Only compiler
scoverage
Avoid SBT Hacks
sbt is not so easy for Scala newbies
The same issue as Ruby gems, eco-system is still so smaller than Ruby's one
Nosurprises for NewComer
newcomesers may not show scala well
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