I played a round a bit and came up with a crude solution as I mentioned in
my initial response.
index all occurrences of "$$$$" -> takes 3-4 seconds for a file with
131'000 records
use separate thread to index to increase performance but current
implementation requires that index is fully built. This is an issue as you
need to have 2 access mechanisms, index based and not-index based.
Use BufferedReader to go to the indexed line, eg
for (int i = 0; i < linesToRead; i++) {
bufferedReader.readLine();
}
yeah, not ideal but it actually is faster than I expected.
add caching to it.
But a question remains:
What is your actual goal? Why can't you use Marvin, for commercial use?
1 million is a lot. Using a real database comes to mind.
2013/9/19 lochana menikarachchi <locha...@yahoo.com>
> Hi Nina,
>
> I did try the RandomAccessSDFReader. It took few minutes to build the
> index for an SD file with 50,000 structures. What I am saying is what ever
> MarvinView does to build index (if it is using an index) is much faster. I
> am wondering how it does that.
>
> Lochana
>
>
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