[Glass] Some 'minor' things

[Dario Trussardi via Glass]

Thanks James,


>> On Dec 1, 2014, at 8:12 AM, Dario Trussardi via Glass <glass at lists.gemtalksystems.com> wrote:
>> 
>> 	4) Gemstone don't implement a Timespan 	subclass	 Date   as into  Pharo
>> 
>> 		 Instances of Date are Timespans with duration of 1 day.
>> 
>> 		I don't find any equivalent class into Gemstone.
> 
> See Duration (as defined in ANSI).

	but Durations ( if right understand ) don't define a reference data when itself starting.

	With this limitations a need to manage two element:

		1) the reference data 

		2) the duration 

	Into Pharo i can operate with only one element  which defines both the departure date that the duration.
	
	It's very useful when i need to select some element according to the period of membership.

	As advice to proceed to handle this problem?

	I do not want to invent the hot water

	Thanks for any considerations ?

	Dario