[jboss-as7-dev] Expressions (Detyped API document feedback)

[Kabir Khan]

On 6 Jan 2011, at 08:39, Max Rydahl Andersen wrote:

>>>>>> 2) If there is significant benefit, how can we model this using the
>>>>>> simpler type system?
>>>>> 
>>>>> Easy - I can add a PROPERTY_EXPRESSION type which attempts to resolve
>>>>> the expression when you call asString()/asInt()/etc. (toString() would
>>>>> return the expression).
>>>>> 
>>>> 
>>>> This would need to be done on the server side and the calculated result
>>>> shipped to the client.
>>> 
>>> I'm not sure this is really necessary.  I'd think we'd have runtime
>>> operations available to query the actual values in use for these kinds
>>> of things; I think for regular model queries the user would want to read
>>> back the expressions only.
>>> 
>> 
>> This is true. The client can decide how to handle this themselves. 
>> Simply returning PROPERTY_EXPRESSION from ModelNode.getType() is enough 
>> to tell the client that the value needs to be resolved; they can decide 
>> what to do with that information.
> 
> How would a client resolve the expression ? Or rather - how could the client get the effective value of the property as seen by the server ?

A 'query-property' operation?