[Biococoa-dev] BCCachedSequenceFile

Charles Parnot charles.parnot at gmail.com
Sat Sep 22 16:50:10 EDT 2007


> Also, BCSequence is currently expensive for accessing single  
> sequence data, constructing a BCSymbol just to get a character is a  
> bit too much.  So part of this would be to think how to extend  
> BCSequence with more cache-friendly functionality.

Note that BCSymbol objects are uniqued and reused. So in fact a  
BCSequence is an array of pointers.

I don't know what the status was on the BCSequence implementation,  
but one of the "todo" things was to switch from NSArray to C arrays  
behind the scenes, while still exposing NSArray too in the interface.  
But I think Koen did some of that transition??

charles

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Charles Parnot
charles.parnot at gmail.com







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