public Explain ( |
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weight | ||
doc | int | |
return |
var indexReader = DirectoryReader.Open(indexDirectory); var indexSearcher = new IndexSearcher(indexReader); var term = new Term("text", "lucene"); var query = new TermQuery(term); var topDocs = indexSearcher.Search(query, 10);Here, we first create an instance of the IndexReader class by opening an index directory (represented by indexDirectory in the code). Then, we create an instance of IndexSearcher by passing the indexReader instance to its constructor. We then create an instance of the Term class with the term 'lucene' and the field 'text'. This specifies that we want to search for documents that contain the word 'lucene' in the 'text' field. We create an instance of the TermQuery class with the term instance, which creates a query that matches documents containing the term. Finally, we call the Search method on the IndexSearcher instance with the query object and the number of top documents we want to retrieve (10 in this example). The Search method returns a TopDocs instance, which contains a list of the top matching documents. Overall, Lucene.Net.Search.IndexSearcher is an essential class in the Lucene.Net library that provides search functionality to retrieve indexed data.