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Java Builder Pattern
The builder pattern in Java is a powerful way to build objects with many optional fields. A Java builder lets you provide a flexible way to objects without combinations of telescoping constructors.
This video explains why the builder exists, why it's better than java beans, and how to implement a builder with advanced validation, including a spicy builder created with interface chaining.
ancient marsh
Thanks for the share, the "dark art" method is something new I've learned today
not sure if i'd ever use the dark art variation tho lol
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I’ve used it quite a bit when creating apis. It’s nice to give people objects to work with that their ide can autocomplete for them without them having to think. It feels great to use. But the implementation is a bit opaque if you’ve never seen it before, so its better when you have this sort of api developer / consumer separation
There are some code generation / annotation processing tools that can do this sort of thing too, but I generally prefer implementing them myself to try to avoid too much wizardry
But there’s a limit to how complex manually crafted ones can be - the one at the end of the video is probably past the limit realistically. But the first one is simple enough, once you’ve got used to it, and really improves DX
ancient marsh
Yeah I can see that being a really good usecase
crimson osprey
superb🚀
unkempt valve
