Lucene.Net  3.0.3
Lucene.Net is a port of the Lucene search engine library, written in C# and targeted at .NET runtime users.
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ScoreCachingWrappingScorer.cs File Reference

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class  Lucene.Net.Search.ScoreCachingWrappingScorer
 A Scorer which wraps another scorer and caches the score of the current document. Successive calls to Score() will return the same result and will not invoke the wrapped Scorer's score() method, unless the current document has changed.
This class might be useful due to the changes done to the Collector interface, in which the score is not computed for a document by default, only if the collector requests it. Some collectors may need to use the score in several places, however all they have in hand is a Scorer object, and might end up computing the score of a document more than once. More...