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Re: Best Way® to test for existence of a relationsh ip

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Re: Best Way® to test for existence of a relationsh ip

Subject: Re: Best Way® to test for existence of a relationsh ip
From: Mike Schrag <email@hidden>
Date: Mon, 7 Apr 2008 10:36:01 -0400

I'd expect the instanceof check will be much more efficient than catching an exception.

By far ...

From an OO design point of view, I'd add a billsOfMaterial() method to the Part class that simply returns NSArray.emptyArray. ManufacturedPart will then override this to return the correct result for a ManufacturedPart.

Ew gross ... If it's not an attribute of all Parts, then from an OO design standpoint it shouldn't be on Part. I agree if your argument is based on "the convenience of being able to call billsOfMaterial on the entire array," though.

ms

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Re: Best Way® to test for existence of a relationsh  ip
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References:  
  >Best Way® to test for existence of a relationship (From: David Avendasora <email@hidden>)
  >Re: Best Way® to test for existence of a relationsh  ip (From: Bob Stuart <email@hidden>)
  >Re: Best Way® to test for existence of a relationsh  ip (From: Chuck Hill <email@hidden>)




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