DisjunctionSumScorer small tweak
--------------------------------
Key: LUCENE-1145
URL: https://issues.apache.org/jira/browse/LUCENE-1145
Project: Lucene - Java
Issue Type: Improvement
Components: Search
Environment: all
Reporter: Eks Dev
Priority: Trivial
Attachments: DisjunctionSumScorerOptimization.patch
Move ScorerDocQueue initialization from next() and skipTo() methods to the
Constructor. Makes DisjunctionSumScorer a bit faster (less than 1% on my
tests).
Downside (if this is one, I cannot judge) would be throwing IOException from
DisjunctionSumScorer constructors as we touch HardDisk there. I see no problem
as this IOException does not propagate too far (the only modification I made is
in BooleanScorer2)
if (scorerDocQueue == null) {
initScorerDocQueue();
}
Attached test is just quick & dirty rip of TestScorerPerf from standard Lucene
test package. Not included as patch as I do not like it.
All test pass, patch made on trunk revision 613923
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