C# Class Lucene.Net.Search.IndexSearcher

Creates a searcher searching the provided index

Note that the underlying IndexReader is not closed, if IndexSearcher was constructed with IndexSearcher(IndexReader r). If the IndexReader was supplied implicitly by specifying a directory, then the IndexReader gets closed.

Expert: directly specify the reader, subReaders and their DocID starts

NOTE: This API is experimental and might change in incompatible ways in the next release

Creates a searcher searching the index in the named directory, with readOnly=true

Creates a searcher searching the index in the named directory. You should pass readOnly=true, since it gives much better concurrent performance, unless you intend to do write operations (delete documents or change norms) with the underlying IndexReader.

Just like Search(Weight, Filter, int, Sort), but you choose whether or not the fields in the returned FieldDoc instances should be set by specifying fillFields.

NOTE: this does not compute scores by default. If you need scores, create a TopFieldCollector instance by calling TopFieldCollector.Create and then pass that to Search(Weight, Filter, Collector).

By default, no scores are computed when sorting by field (using Searcher.Search(Query,Filter,int,Sort)). You can change that, per IndexSearcher instance, by calling this method. Note that this will incur a CPU cost.