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#3 Add description of extended state info values

open
core (1)
5
2007-03-19
2007-03-19
No

In the same way a Sensor has a getParameterDescriptors() method to describe the parameters it takes, it would be useful to add a method to describe the values it returns in state extended info.

This way:

a) extended info would be more useful for users, that could then better understand what a value means.
b) implementation of services that add chart generation facilities will be easier.

I think that this description must provide at least this information:

- text string describeing what the value means
- info about what states return this value (for example, most values have no meaning in Unknown state)
- units of measurement. e.g. KB, bps, MB/s, percentage..., in case of numeric values.

Also, nested states (such as Ftp sensor welcomePatternStatus, fileStatus...) must be taken into account.

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