Add method getSystemsOfUnits to SystemOfUnitsService

[GoogleCodeExporter]

Add method getSystemsOfUnits to SystemOfUnitsService

[GoogleCodeExporter]

I suggest getSystemOfUnitNames() returning a Set<String>. The reason for 
returning only the names instead than fully instantiated SystemOfUnits is that 
the later could be (in some implementations) costly objects. Someone who really 
want all SystemOfUnits can iterate over the names and invoke 
getSystemOfUnits(String), but I think that many users will apply some filtering 
based on the names.

If we add this method in SystemOfUnitsService, we should do something similar 
in UnitFormatServices.

Original comment by [email protected] on 8 Jan 2013 at 5:09

[GoogleCodeExporter]

That's a good starting point. It allows to loop the list of available
systems to be iterated and look up all one by one or based on some
preference only those an implementation wants.

While it's a little extra step, let's say there are several, and the
service wants just SI, I agree, instantiating all inside the getter for
that set could be costly.

Werner

-- 

 Werner Keil | JCP Executive Committee Member | Eclipse UOMo Lead, Babel
Language Champion | Java Godfather

 Twitter @wernerkeil | #Java_Social | #EclipseUOMo | #OpenDDR
Skype werner.keil | Google+ gplus.to/wernerkeil

* Eclipse DemoCamp: November 30 2012, Vienna, Austria. Werner Keil,  Eclipse
UOMo Lead and M�rsk Build Manager will present "Triple-E class Continuous
Delivery with Hudson, Maven, Kokki and PyDev"

Original comment by [email protected] on 8 Jan 2013 at 5:21

[GoogleCodeExporter]

Committed as of revision 225.

Original comment by [email protected] on 10 Jan 2013 at 4:38

• Changed state: Fixed