[UoM] Absolute vs. Relative Temperature

[keilw]

Let me try this here now.
There was a discussion prior to unitsofmeasurement/indriya#128 around absolute/relative Temperature values and how SmartHome should handle them. So far this was done in an application-specific way. JSR 385 (Units of Measurement 2.0) does provide a Quantity Scale that can be either ABSOLUTE or RELATIVE, but no implementation-specific operations are applied yet. It is not so easy, because the type Temperature cannot be kept hold of in Java due to Generics restrictions.
What was done in SmartHome or OpenHAB so far, and is there a branch or class we could use as inspiration for something that might work in a more general purpose manner? Or do you feel it's better to leave it up to individual solutions to react based on the new scale?

[wborn]

Looks like the discussion for this was in eclipse-archived/smarthome#5697 and @triller-telekom made some workarounds in eclipse-archived/smarthome#5679.

[keilw]

Thanks, we'll check it out for the RI.

[wborn]

Let's close this since we also switched to using indriya (#2319).
The temperature implementation changes did cause a few minor issues and inconveniences for some (#2386).