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TestBooleanScorer.javaAPI DocApache Lucene 2.1.02625Wed Feb 14 10:46:36 GMT 2007org.apache.lucene.search

TestBooleanScorer

public class TestBooleanScorer extends TestCase
author
Christoph Goller
version
$rcs = ' $Id: TestBooleanScorer.java 472959 2006-11-09 16:21:50Z yonik $ ' ;

Fields Summary
private static final String
FIELD
Constructors Summary
public TestBooleanScorer(String name)

    super(name);
  
Methods Summary
public voidtestMethod()

  
     
    RAMDirectory directory = new RAMDirectory();

    String[] values = new String[] { "1", "2", "3", "4" };

    try {
      IndexWriter writer = new IndexWriter(directory, new WhitespaceAnalyzer(), true);
      for (int i = 0; i < values.length; i++) {
        Document doc = new Document();
        doc.add(new Field(FIELD, values[i], Field.Store.YES, Field.Index.UN_TOKENIZED));
        writer.addDocument(doc);
      }
      writer.close();

      BooleanQuery booleanQuery1 = new BooleanQuery();
      booleanQuery1.add(new TermQuery(new Term(FIELD, "1")), BooleanClause.Occur.SHOULD);
      booleanQuery1.add(new TermQuery(new Term(FIELD, "2")), BooleanClause.Occur.SHOULD);

      BooleanQuery query = new BooleanQuery();
      query.add(booleanQuery1, BooleanClause.Occur.MUST);
      query.add(new TermQuery(new Term(FIELD, "9")), BooleanClause.Occur.MUST_NOT);

      IndexSearcher indexSearcher = new IndexSearcher(directory);
      Hits hits = indexSearcher.search(query);
      assertEquals("Number of matched documents", 2, hits.length());

    }
    catch (IOException e) {
      fail(e.getMessage());
    }