I'm using JSR-385 with the RI (Indriya). I have a Quantity q1 and defined as such:
QuantityFormat qf = ServiceProvider.current().getFormatService().getQuantityFormat();
Quantity q1 = qf.parse("10 J"); // Here strings are constants but they are coming from user input
// The Unit of Measure can/will vary.
Now I want to understand what Quantity (i.e. what interface in javax.measure.quantity) q1 is measuring, if any.
I can retrieve Dimension but that is not the same thing:
Quantity q2. qf.parse("10 N*m");
System.stdout.println(q1.compareTo(q2)); // prints "0", but torque and energy are not the same thing
As additional "free rant", the API of Dimension.getBaseDimensions() are so inconsistent Instead of returning always a Map<Dimension, Integer> they just do so when the Dimension is not related to a base dimension, in which case it returns null (it could have more consistently still return the Map containing a single Map.Entry), except in the case of UnitDimension.NONE when it follows again the expected behavior and returns an empty Map.
