FileDocCategorySizeDatePackage
SearchTestForDuplicates.javaAPI DocApache Lucene 1.92998Mon Feb 20 09:19:40 GMT 2006org.apache.lucene

SearchTestForDuplicates

public class SearchTestForDuplicates extends Object
Copyright 2004 The Apache Software Foundation Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

Fields Summary
static final String
PRIORITY_FIELD
static final String
ID_FIELD
static final String
HIGH_PRIORITY
static final String
MED_PRIORITY
static final String
LOW_PRIORITY
Constructors Summary
Methods Summary
public static voidmain(java.lang.String[] args)


       
    try {
      Directory directory = new RAMDirectory();
      Analyzer analyzer = new SimpleAnalyzer();
      IndexWriter writer = new IndexWriter(directory, analyzer, true);

      final int MAX_DOCS = 225;

      for (int j = 0; j < MAX_DOCS; j++) {
        Document d = new Document();
        d.add(new Field(PRIORITY_FIELD, HIGH_PRIORITY, Field.Store.YES, Field.Index.TOKENIZED));
        d.add(new Field(ID_FIELD, Integer.toString(j), Field.Store.YES, Field.Index.TOKENIZED));
        writer.addDocument(d);
      }
      writer.close();

      // try a search without OR
      Searcher searcher = new IndexSearcher(directory);
      Hits hits = null;

      QueryParser parser = new QueryParser(PRIORITY_FIELD, analyzer);

      Query query = parser.parse(HIGH_PRIORITY);
      System.out.println("Query: " + query.toString(PRIORITY_FIELD));

      hits = searcher.search(query);
      printHits(hits);

      searcher.close();

      // try a new search with OR
      searcher = new IndexSearcher(directory);
      hits = null;

      parser = new QueryParser(PRIORITY_FIELD, analyzer);

      query = parser.parse(HIGH_PRIORITY + " OR " + MED_PRIORITY);
      System.out.println("Query: " + query.toString(PRIORITY_FIELD));

      hits = searcher.search(query);
      printHits(hits);

      searcher.close();

    } catch (Exception e) {
      System.out.println(" caught a " + e.getClass() +
                         "\n with message: " + e.getMessage());
    }
private static voidprintHits(org.apache.lucene.search.Hits hits)

    System.out.println(hits.length() + " total results\n");
    for (int i = 0 ; i < hits.length(); i++) {
      if ( i < 10 || (i > 94 && i < 105) ) {
        Document d = hits.doc(i);
        System.out.println(i + " " + d.get(ID_FIELD));
      }
    }