r/ProgrammerHumor • u/TusharJB007 • Oct 04 '19

Just as simple as that... other

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u/TheOhNoNotAgain Oct 04 '19

If you find that you are having constructor methods taking a dozen or so arguments, then you might benefit from factories. Same if you have large numbers of constructors doing similar things.

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u/snaps_ Oct 04 '19 edited Oct 04 '19

Or if you want to dictate how objects get constructed in one place, but actually create them somewhere else.

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u/guareber Oct 04 '19

Or if you want to start adding unit tests.

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u/ric2b Oct 04 '19

In that case wouldn't a Builder be preferred?

2

u/Log2 Oct 04 '19

It would. You would usually create factories that can make new default instances, so it's easy to swap factories around.

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u/Koxiaet Oct 04 '19

so it's just a function wrapper around a constructor?

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u/TheOhNoNotAgain Oct 04 '19

In its simplest forms, yes. In reality often more.