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Re: Is it safe to use NSDictionary as the objects in a (WO/ERX)DisplayGroup?
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Re: Is it safe to use NSDictionary as the objects in a (WO/ERX)DisplayGroup?


  • Subject: Re: Is it safe to use NSDictionary as the objects in a (WO/ERX)DisplayGroup?
  • From: George Domurot <email@hidden>
  • Date: Tue, 09 Apr 2013 17:48:09 -0700

Try using displayGroup.setObjectArray(yourObjects).

-G

On Apr 9, 2013, at 5:10 PM, Paul Hoadley <email@hidden> wrote:

Hello,

I needed to display the content of an array of NSDictionary objects, and without thinking I just loaded them into an ERXDisplayGroup via an EOArrayDataSource:

EODataSource ds = new EOArrayDataSource(EOClassDescription
.classDescriptionForClass(NSDictionary.class), editingContext());

Two observations followed:

1.  This works.  I guess that pretty much answers my question, but are there any undesirable side-effects?  (I probably shouldn't be specifying the component's EOEditingContext up there.  I should change that to ERXEC.newEditingContext().)

2.  Not surprisingly the code throws an exception at runtime:

ERROR ERXEntityClassDescription  - Unable to register descriptions for class: com.webobjects.foundation.NSDictionary
java.lang.RuntimeException: Dummy

Can I safely catch and/or ignore that?

In short, I'd like to use all the nice ERXDisplayGroup machinery, but the objects are NSDictionaries.  Am I likely to regret this in the future?


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


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