As we saw in our type-safe builder example, adding more advanced logic and requirements could involve quite a bit of work. Without this possibility, the developer will risk the users of their classes making more mistakes. Also, the builder contains quite a lot of seemingly duplicate code, especially when it is implemented using a Java-like code.
What it is not so good for?
Get Scala Design Patterns - Second Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
