design patterns - Singleton class -

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we have application, access the config file, have singleton class , object of used.

i understand singleton class , provide 1 instance of object. question why can't have opening , closing of config file whenever required.

ofcourse, method may expensive since windows need allot handle , dispose off when not in use.

are there specific reason using singleton class.

thank you, harsha

singleton class can pure evil. is. you'll see if ever decide apply loose-coupling code.

my advice reconsider design. think of reading config file @ application start , persisting object configuration parameters in memory. can pass object classes/interfaces require config parameters.

you may redesign application in way doesn't require numerous writes config file without using singleton (anti)pattern.


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