Yes, the svn trunk uses skipTo more often than 1.4.3.
However, your implementation of skipTo() needs some improvement. See the javadoc of skipTo of class Scorer:
http://lucene.apache.org/java/docs/api/org/apache/lucene/search/ Scorer.html#skipTo(int)
What's wrong with the version I sent? Remeber that there can be at most one document in a MemoryIndex. So the "target" parameter can safely be ignored, as far as I can see.
In case the underlying scorers provide skipTo() it's even better to use that.
The version I sent returns in O(1), if performance was your concern. Or did you mean something else?
Wolfgang.
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