If no sample was ever taken the value should be null, since any
numerical value would represent an actual time and falsely insinuate
that a measurement was taken at that time.
Bill Shannon wrote:
> And what should its value be if no sample was ever taken?
>
>
> Hans Hrasna wrote on 10/16/09 12:48:
>> Hi,
>>
>> lastSampleTime is the time that the measurement was taken. For
>> example, if measurements are being taken every hour and being stored
>> in a variable or table, then the lastSampleTime should reflect the
>> time the data was sampled and stored. Or for example if measurements
>> are being taken every time an event occurs, like a connection, then
>> the lastSampleTime is the time of the last event.
>>
>> -Hans
>>
>>
>> Sankar Neelakandan wrote:
>>> May be Hans can tell us what he meant by this in JSR 77 spec.
>>>
>>> JSR77.6.4.1.5
>>> getLastSampleTime long getLastSampleTime()
>>> Returns the time the most recent measurment was taken represented as
>>> a long,whose value is the number of milliseconds since January 1,
>>> 1970, 00:00:00.
>>>
>>>
>>>> And if, after that 10th hit, I do "get" 10 times, every one of them
>>>> will
>>>> return exactly the same data, until the next hit of the web page?
>>> > hmm..actually I just tried this and the lastSampleTime gets
>>> updated every time you do "get" with the current time. That doesn't
>>> seem right to me.
>>>
>>> What you are seeing is correct because stats is a continuously
>>> changing entity and something else (being get command/GUI etc.,) who
>>> is interested in the entity can take a measurement at a desired time
>>> specified by lastSampleTime.
>>>
>>>>>
>>>>> The confusion is over whether "get" is *causing* the sampling, or is
>>>>> just returning the sampled data that was caused by something else.
>>>> the latter - returns the sampled data that was caused by something
>>>> else
>>> The example with processingtime shows the process of "how it is
>>> calculated rather than how it is sampled."
>>>
>>>>
>>
>