Best way to find a single record with simple find

[Ruslan Zasukhin]

on 8/4/03 10:00, Matthew Jew at mjew at icnc.com wrote:

Hi Matthew ,

> I am wondering what the simplest way to find a single record given a
> field containing unique, indexed values to search on.
> 
> It seems the simplest way in Valentina is to do something like:
> 
> FBL_BitSet    *articleNumberBitSet = theTable.articleNumber.Find(
> &anArticleNumber );
> FBL_ArraySet *anArraySet = new FBL_ArraySet( *articleNumberBitSet );
> 
> ID_TYPE theRecordNumber = anArraySet(1);
> 
> which will give you the record number in three simple steps.
> 
> Of course, one could instead
> 
> FBL_BitSet    *articleNumberBitSet = theTable.articleNumber.Find(
> &anArticleNumber );
> FBL_BitSetIterator *anIterator = new FBL_BitSetIterator(
> *articleNumberBitSet );
> 
> ID_TYPE theRecordNumber = anIterator ->FirstItem();
> 
> again, three simple steps (I think I have it right).
> 
> I was wondering if in these cases where one *knows* there is only one
> record to find if there is a method like

Please note VDK_Field::FindAsArraySet() method

If you compare it to your above first way, you will see that you get 2
steps. Besides this method eat less RAM when we KNOW that will be found few
records.

I also have think about method that simply returns one record.


-- 
Best regards,
Ruslan Zasukhin      [ I feel the need...the need for speed ]
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e-mail: ruslan at paradigmasoft.com
web: http://www.paradigmasoft.com

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