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Re: NSArray parameter and warning
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Re: NSArray parameter and warning


  • Subject: Re: NSArray parameter and warning
  • From: Paul Hoadley <email@hidden>
  • Date: Tue, 05 Feb 2013 09:17:24 +1030

On 05/02/2013, at 7:39 AM, yizi wang <email@hidden> wrote:

I got warning for the following method:

    public NSArray<User> users() {
        return EOUtilities.objectsForEntityNamed(ec(), "User");
    }

It said that "Type safety: The _expression_ of type NSArray needs unchecked conversion to conform to NSArray<User>"

How to provide 'unchecked conversion'?, What's the recommended way to fix this?

A suggestion has been provided, but here's an alternative.  If you're using the standard WOLips/Wonder templates to generate your EO classes, you can re-write that as:

public NSArray<User> users() {
return User.fetchAllUsers(ec());
}

That method is properly genericised, and so doesn't need casting or warning suppression.


-- 
Paul Hoadley
http://logicsquad.net/



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