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From Gregory Shimansky <gshiman...@gmail.com>
Subject Re: [vmi] Retrieving system properties (was: Re: [classlib][luni] update for bootstrapClassPath causes regression on DRL VM)
Date Thu, 14 Dec 2006 17:54:38 GMT
Geir Magnusson Jr. wrote:
> 
> 
> Gregory Shimansky wrote:
>> Tim Ellison wrote:
>>> Gregory Shimansky wrote:
>>>> Tim Ellison wrote:
>>>>> Maybe we do, i.e. where there is no value "-Dfoobar".  So perhaps we
>>>>> need to say that GetSystemProperty returns VMI_ERROR_NONE and sets the
>>>>> the *valuePtr to NULL if there is no value; and returns a
>>>>> VMI_ERROR_NOT_FOUND if the property is undefined.
>>>> Now I am confused. What is the difference between a property which has
>>>> no value and an undefined property?
>>>
>>> Sorry, I meant a property whose value is NULL.  So the three cases are:
>>>
>>> 1) key = "foo", value = "bar"
>>> 2) key = "foo", value = NULL
>>> 3) no key called "foo"
>>>
>>> If (2) is disallowed then we should document that in 
>>> SetSystemProperty().
>>
>> I would prefer to have (2) to be illegal. Can we document this please?
> 
> Why would 2 be illegal?

Just adding to what other people wrote in this thread, I don't see a 
real usecase to invent our own concept of properties different from Java 
concept. It will just make the understanding harder for no apparent reason.

-- 
Gregory


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