Re: [Hessianobjc-user] solved - was Re: enum

[Tore H. <ha...@pv...>]

Hello.

Anyone able to take a look at this one? And perhaps commit an  
acceptable fix?

  - Tore.

On Dec 17, 2007, at 01:43, Tore Halset wrote:

> Hello.
>
> Okay, I found a solution. Looks like hessian serialize a enum variable
> as a Map with a single key, but no value. Here is a working patch that
> fixes my problem.
>
> Index: BBSHessianDecoder.m
> ===================================================================
> --- BBSHessianDecoder.m	(revision 92)
> +++ BBSHessianDecoder.m	(working copy)
> @@ -251,6 +251,11 @@
>              //read the type
>              id key = [self decodeObjectForCode:objectTag];
>              [dataInputStream read:&objectTag maxLength:1];
> +            if(objectTag == 'z') {
> +                // java enum are serialized by hessian using a Map
> with a single key, but no value
> +                [dict setObject:[NSNull null] forKey:key];
> +                break;
> +            }
>              id value = [self decodeObjectForCode:objectTag];
>              if(key != nil) {
>                  if(value == nil) {
>
>
> Regards,
>  - Tore.
>
> On Dec 17, 2007, at 01:17, Tore Halset wrote:
>
>> Hello.
>>
>> Sorry, but the map is not related to TreeMap, but encoding a enum.
>> This enum is burryed far down in the object graph, but I have  
>> isolated
>> this by trying everything with the transient-keyword.
>>
>> The problem is this instanse variable:
>>    protected LifecycleEvent callbackType;
>>
>> This is how LifecycleEvent look like:
>> public enum LifecycleEvent {
>>    PRE_PERSIST, PRE_REMOVE, PRE_UPDATE, POST_PERSIST, POST_REMOVE,
>> POST_UPDATE, POST_LOAD;
>> }
>>
>> Here is a output from tcpdump.
>>
>>        0x0410:  0000 074d 7400 296f 7267 2e61 7061
>> 6368  ...Mt.)org.apach
>>        0x0420:  652e 6361 7965 6e6e 652e 6d61 702e 4361
>> e.cayenne.map.Ca
>>        0x0430:  6c6c 6261 636b 4465 7363 7269 7074 6f72
>> llbackDescriptor
>>        0x0440:  5300 0c63 616c 6c62 6163 6b54 7970 654d
>> S..callbackTypeM
>>        0x0450:  7400 256f 7267 2e61 7061 6368 652e 6361  t.
>> %org.apache.ca
>>        0x0460:  7965 6e6e 652e 6d61 702e 4c69 6665 6379
>> yenne.map.Lifecy
>>        0x0470:  636c 6545 7665 6e74 5300 0b50 5245 5f50
>> cleEventS..PRE_P
>>        0x0480:  4552 5349 5354 7a53 000f 6361 6c6c 6261
>> ERSISTzS..callba
>>        0x0490:  636b 4d65 7468 6f64 7356 7400 176a 6176
>> ckMethodsVt..jav
>>        0x04a0:  612e 7574 696c 2e4c 696e 6b65 6448 6173
>> a.util.LinkedHas
>>        0x04b0:  6853 6574 6c00 0000 007a 7a4d 7400 296f
>> hSetl....zzMt.)o
>>        0x04c0:  7267 2e61 7061 6368 652e 6361 7965 6e6e
>> rg.apache.cayenn
>>        0x04d0:  652e 6d61 702e 4361 6c6c 6261 636b 4465
>> e.map.CallbackDe
>>        0x04e0:  7363 7269 7074 6f72 5300 0c63 616c 6c62
>> scriptorS..callb
>>        0x04f0:  6163 6b54 7970 654d 7400 256f 7267 2e61  ackTypeMt.
>> %org.a
>>        0x0500:  7061 6368 652e 6361 7965 6e6e 652e 6d61
>> pache.cayenne.ma
>>        0x0510:  702e 4c69 6665 6379 636c 6545 7665 6e74
>> p.LifecycleEvent
>>        0x0520:  5300 0a50 5245 5f52 454d 4f56 457a 5300
>> S..PRE_REMOVEzS.
>>
>> Anyone know where to start on the objc side of it?
>>
>> - Tore.
>>
>> On Dec 13, 2007, at 01:17, Tore Halset wrote:
>>
>>> Hello.
>>>
>>> I was able to decode java.util.TreeMap with HessianObjC before, but
>>> now (after leopard?), they are just decoded as null. The TreeMap  
>>> is a
>>> member of a mapped class.
>>>
>>> Anyone else seen something like this?
>>>
>>> Regards,
>>> - Tore.
>>>
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