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Singleton pattern in loop

Posted on 2009-07-13
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Last Modified: 2012-05-07
Hi there,

I am processing a loop with around 1 million records i.e looping around 1 million times. I am creating number of objects within loop. I do NOT want to declare local variables outside the loop, but want to get maximum performance and minimum memory.

So, I am thinking of creating a Singleton CLASS which will hold all the variables/objects that needs to be declared and initialited within loop each time. Now, I will implement Singleton pattern on this class. In other words, Singleton object will be acquired for each run of the loop. Is this a valid option using which I can get maximum performance and minimum memory.
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Question by:tech1guy
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iUsername earned 500 total points
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Sounds pretty good to me.
I also wouldn't call "get_instance()" function inside the loop to get the singleton pointer, but I would declare a variable that will hold a pointer to that singleton object, and call get_instance() only once before the loop.
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by:tech1guy
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but I need to RESET the variables/objects within the Singleton class for each loop run.
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by:iUsername
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hmm, well, I don't really know what it means to "reset" the object in the singleton object.

In some cases it is better to simply create a new object (and dispose the last one), in other cases it is better to "reset' an object. depends on the object itself.
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