Re: Casting Object to NSArray
Re: Casting Object to NSArray
- Subject: Re: Casting Object to NSArray
- From: Goodbye Bill <email@hidden>
- Date: Sat, 28 Jun 2003 20:06:05 -0400
Karl / Art,
I DID do as Art requested. The object returned "java.lang.Object" and not
NSArray. I could not successfully cast it to an NSArray and/or use it.
That is the whole problem.
If it was an "Object[]" I would assume that I should be able to simply pull
out individual objects from THAT array. Is that not correct? Even better,
I would like to be able to change it back to an NSArray.
Is it possible to cast an "Object[]" to an "NSArray?" If so, how? Also,
should I be able to use the "Object[]" directly?
Sorry for being a pain. I swear that I am following your replies
letter-for-letter.
Thanks,
"Bill"
On 6/28/03 4:03 AM, "Hsu" <email@hidden> wrote:
> Art is correct. There are several classes that have serializers but no
> deserializers - NSArray is one of them. In goes an NSArray, out comes
> an Object[].
>
> Karl
>
> On Friday, June 27, 2003, at 08:18 PM, Art Isbell wrote:
>
>> On Friday, June 27, 2003, at 04:35 PM, Goodbye Bill wrote:
>>
>>> Thanks for all of the replies, however I left out one small detail
>>> that will
>>> probably change all of your answers: this is via a web service.
>>>
>>> The code on the SERVER (the WebService) looks like this...
>>>
>>> private NSArray myObjects;
>>>
>>> public NSArray GetObjects()
>>> {
>>> return myObjects;
>>> }
>>>
>>> The code on the CLIENT (the consumer app) looks like this...
>>>
>>> public NSArray myReceivedObjects()
>>> {
>>> Object tmpArray = serviceClient().invoke(serviceName(),
>>> "GetObjects", null);
>>> return (NSArray)tmpArray;
>>> }
>>>
>>> Here's a little more info on this:
>>>
>>> 1. The "serviceClient" is a "WOWebServiceClient" object;
>>> 2. According to the API Reference, the "invoke" method on this object
>>> returns an "Object" regardless of what method it invokes on the
>>> server.
>>>
>>> The client example above will compile but generates a
>>> "ClassCastException"
>>> exception at runtime.
>>>
>>> Any ideas? I'm going on two full days working with this. The bottom
>>> line
>>> is that I need to get an array of objects from a web service.
>>
>> The documentation for invoke() states, "This method may return either
>> an object, or a language array of objects." I read "language array of
>> objects" to mean an Object[] (i.e., a primitive Java array) rather
>> than an NSArray. Apparently you didn't do what I suggested: print
>> tmpArray.getClass().getClassName() to see what class of object is
>> returned.
>>
>> Aloha,
>> Art
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> --
>
> If I want to hear the pitter patter of little feet, I'll put shoes on
> my cat.
>
> Homepage:
> http://homepage.mac.com/khsu/index.html
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