[Bluej-discuss] style question: best way to handle global data

[Chuck Iverson]

How about putting your constant config data in an interface and  
implementing it where you need it?

On Dec 6, 2007, at 12:51 PM, Aryeh M. Friedman wrote:

> Let's say I have a global piece of data (like system wide configs) and
> need to make it aviable in a number of unpredictable situations (i.e.
> the caller does not necessarly know that global data will be used)....
> for example if I am writing a replacement for JUnit and have a setting
> for say the type of test and an other for say the reporting format to
> use for results... what is the best way to handle this... I can think
> two solutions use a Singleton (i.e. a class that has a static instance
> of itself and uses that static instance for all method calls) and the
> other is to pass the global data as a param... the con of the 1st is  
> it
> violates the spirit of the no global data precept of OO and the draw
> back of the second is the caller needs to be (unnecessarily) aware of
> the fact that a called method will need global data.
>
> -- 
> Aryeh M. Friedman
> FloSoft Systems
> Developer, not business, friendly
> http://www.flosoft-systems.com
>
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