Builders are great: I've been putting them into some code recently because we're building an API but don't want to make breaking changes every time we need to modify a constructor. Backwards compatibility FTW.
I'll illustrate with a simple example.
Before builder:
With a PersonBuilder:
Now, if we want to add a nickname paramater to the person constructor, we add a corresponding withNickName(String nickname) on the builder and don't break anybody's existing code. (Saying that, of course we could achieve backwards compatibility with the telescoping pattern but that would be TOO GRIM FOR WORDS. )
I'll illustrate with a simple example.
Before builder:
With a PersonBuilder:
Now, if we want to add a nickname paramater to the person constructor, we add a corresponding withNickName(String nickname) on the builder and don't break anybody's existing code. (Saying that, of course we could achieve backwards compatibility with the telescoping pattern but that would be TOO GRIM FOR WORDS. )
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