Question

public static void main(String[] args) throws CorruptIndexException,
LockObtainFailedException, IOException, ParseException {
Path path = Paths.get("lucene_tribunal");
Directory fsDir = FSDirectory.open(path);
Analyzer an = new StandardAnalyzer();
IndexWriterConfig iwc = new
IndexWriterConfig(an);
try (IndexWriter indexWriter = new IndexWriter(fsDir, iwc)) {
Document doc = new Document();
doc.add(new StringField("titulo", "Algoritmos", Store.YES));
doc.add(new StringField("chave", "algoritmo", Store.NO));
doc.add(new StringField("chave", "estrutura dados", Store.YES));
doc.add(new StringField("chave", "grafos", Store.YES));
doc.add(new StringField("chave", "graficos", Store.YES));
doc.add(new StringField("isbn", "9788535236996", Store.NO));
indexWriter.addDocument(doc);
int numDocs = indexWriter.numDocs();
System.out.println("num docs=" + numDocs);
}
IndexReader dir =
DirectoryReader.open(FSDirectory.open(path));
IndexSearcher is = new IndexSearcher(dir);
Analyzer analyzer = new StandardAnalyzer();
QueryParser parser = new QueryParser("chave", analyzer);
Query query;
query = parser.parse("gr*");
TopDocs hits = is.search(query,10);
System.out.println("Total Hits="+hits.totalHits);
dir.close();
}
Assinale a opção que apresenta o resultado do código Java precedente, que utiliza a biblioteca Lucene.

Accepted Answer

A) num docs=1 Total Hits=1

Answer

B) num docs=1 Total Hits=2

Answer

C) num docs=6 Total Hits=1

Answer

D) num docs=6 Total Hits=2

Answer

E) num docs=1 Total Hits=10

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