lucene-java-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Gimantha Bandara <giman...@wso2.com>
Subject Using lucene queries to search StringFields
Date Thu, 18 Jun 2015 08:42:42 GMT
Hi all,

I have created lucene documents like below.

Document doc = new Document();
doc.add(new TextField("A", "1", Field.Store.YES));
doc.add(new StringField("B", "1 2 3", Field.Store.NO));
doc.add(new TextField("Publish Date", "2010", Field.Store.NO));
indexWriter.addDocument(doc);

doc = new Document();
doc.add(new TextField("A", "2", Field.Store.YES));
doc.add(new StringField("B", "1 2", Field.Store.NO));
doc.add(new TextField("Publish Date", "2010", Field.Store.NO));
indexWriter.addDocument(doc);

doc = new Document();
doc.add(new TextField("A", "3", Field.Store.YES));
doc.add(new StringField("B", "1", Field.Store.NO));
doc.add(new TextField("Publish Date", "2012", Field.Store.NO));
indexWriter.addDocument(doc);

Now I am using the following code to test the StringField behavior.

        Query w = null;
        try {
            w = new QueryParser(null, new WhitespaceAnalyzer()).parse("B:1
2");
        } catch (ParseException e) {
            e.printStackTrace();
        }
        TopScoreDocCollector collector = TopScoreDocCollector.create(100,
true);
        searcher.search(w, collector);
        ScoreDoc[] hits = collector.topDocs(0).scoreDocs;
        Document indexDoc;
        for (ScoreDoc doc : hits) {
            indexDoc = searcher.doc(doc.doc);
            System.out.println(indexDoc.get("A"));
        }

Above code should print only the second document's 'A' value as it is the
only one where 'B' has value '1 2'. But it returns the 3rd document. So I
tried using double quotation marks for 'B' value as below.

w = new QueryParser(null, new WhitespaceAnalyzer()).parse("\"B:1 2\"");

It gives the following error.

Exception in thread "main" java.lang.IllegalStateException: field "B" was
indexed without position data; cannot run PhraseQuery (term=1)
    at
org.apache.lucene.search.PhraseQuery$PhraseWeight.scorer(PhraseQuery.java:277)
    at org.apache.lucene.search.Weight.bulkScorer(Weight.java:131)
    at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:618)
    at
org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:309)   Is
my searching query wrong? (Note: I am using whitespace analyzer everywhere)

-- 
Gimantha Bandara
Software Engineer
WSO2. Inc : http://wso2.com
Mobile : +94714961919

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message