Re: Is it safe to use NSDictionary as the objects in a (WO/ERX)DisplayGroup?
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: Chuck Hill <email@hidden>
- Date: Tue, 09 Apr 2013 17:50:31 -0700
On 2013-04-09, at 5:48 PM, Ramsey Gurley wrote:
> displayGroup.setObjectArray()?
>
> Also, NSDictionaries? Gross. It sounds like your gut is telling you something. Listen to it. Java has Objects and Interfaces. Use them.
>
> I despise looking at Java code when all I see is an array of dictionaries which holds more arrays which have yet more dictionaries full of arrays and so on. Dictionaries are opaque. You don't know what's in them. Magic keys, magic values, and zero javadoc to explain any of it. In the end, it results in the least maintainable and most confusing code imaginable.
aka Direct To Web :-P
>
> Ramsey
>
> On Apr 9, 2013, at 5:10 PM, Paul Hoadley 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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--
Chuck Hill
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