Web Reference: Learn how to refactor type code, which is a set of numbers or strings that form a list of allowable values for some entity, into a new class with objects. See the problem, solution, benefits, and steps of this refactoring technique. Apr 23, 2023 · So we add this method to our class: It was as easy as copying the previous method and changing the result type, the method name, and the return values. What would happen if we needed one more method, depending on the size? Let's say a toString() method. We would make new copies again and again. Numeric type codes, or enumerations, are a common feature of C-based languages. With symbolic names they can be quite readable. The problem is that the symbolic name is only an alias; the compiler still sees the underlying number. The compiler type checks using the number 177 not the symbolic name.
YouTube Excerpt: A screencast of one of Martin Fowler's refactoring patterns from the series called Organizing Data.
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