Take a look at http://lucene.apache.org/core/5_3_1/queryparser/org/apache/lucene/queryparser/classic/package-summary.html#package_description. Sounds like you want an AND, or a +, or both. You may also want to take a look at phrase queries and/or span queries.
-- Ian. -- Ian. On Thu, Oct 1, 2015 at 1:52 PM, Bhaskar <bhaskar1...@gmail.com> wrote: > Hi Uwe, > my searching is working like this. > if i give input as "SD RAM Bhaskar" then which ever strings are having > "SD", "RAM", "Bhaskar" all results are coming . > i.e. "SD lib" > "RAM hello" > "hi Bhaskar " > "Bhaskar hai SD" > > > But I want below output. > "SD RAM Bhaskar" > "SD RAM Bhaskar hello" > i.e in the begining string have "SD RAM Bhaskar" then next string can be > any thing. > > > but my current application result where ever it finds the "SD", or "RAM", > or "Bhaskar" I am getting all the string. > > > Can you please advice? > Thanks a lot in advance. > > Regards, > Bhaskar > > > > > On Wed, Sep 30, 2015 at 12:23 PM, Uwe Schindler <u...@thetaphi.de> wrote: > >> Hi Bhaskar, >> >> the answer is very simple: Your analysis is not useful for the type of >> queries and data you are using. You are using SimpleAnalyzer in your >> search/indexing code: >> >> >> https://lucene.apache.org/core/5_3_1/analyzers-common/org/apache/lucene/analysis/core/SimpleAnalyzer.html >> "An Analyzer that filters LetterTokenizer with LowerCaseFilter" >> >> And LetterTokenizer does the following: >> >> https://lucene.apache.org/core/5_3_1/analyzers-common/org/apache/lucene/analysis/core/LetterTokenizer.html >> "A LetterTokenizer is a tokenizer that divides text at non-letters. That's >> to say, it defines tokens as maximal strings of adjacent letters, as >> defined by java.lang.Character.isLetter() predicate." >> >> So it creates a new token at every non-letter boundary. All non-letters >> are discarded (because they are treated as token boundary). So your queries >> can never match. >> >> I'd suggest to first inform yourself about analysis and choose a better >> one that suits your underlying data and the queries you want to do. Maybe >> use WhitespaceAnalyzer or better StandardAnalyzer as a first step. Be sure >> to reindex your data before querying. The Analyzer used on the search side >> must be the same like on the query side. If you want to use wildcards, you >> have to take care more, because wildcards are not really natural for "full >> text search engine" and may cause inconsistent results. >> >> Uwe >> >> ----- >> Uwe Schindler >> H.-H.-Meier-Allee 63, D-28213 Bremen >> http://www.thetaphi.de >> eMail: u...@thetaphi.de >> >> > -----Original Message----- >> > From: Bhaskar [mailto:bhaskar1...@gmail.com] >> > Sent: Wednesday, September 30, 2015 4:28 AM >> > To: java-user@lucene.apache.org >> > Subject: Re: Need help in alphanumeric search >> > >> > Hi Uwe, >> > >> > Below is my indexing code: >> > >> > public static void main(String[] args) throws Exception { //Path >> indexDir = >> > new Path(INDEX_DIR); public static final String INDEX_DIR = >> "c:/DBIndexAll/"; >> > final Path indexDir = Paths.get(INDEX_DIR); SimpleDBIndexer indexer = new >> > SimpleDBIndexer(); try{ >> > Class.forName(JDBC_DRIVER).newInstance(); >> > Connection conn = DriverManager.getConnection(CONNECTION_URL + >> > DBNAME, USER_NAME, PASSWORD); >> > SimpleAnalyzer analyzer = new SimpleAnalyzer(); >> > IndexWriterConfig indexWriterConfig = new IndexWriterConfig(analyzer); >> > IndexWriter indexWriter = new IndexWriter(FSDirectory.open(indexDir), >> > indexWriterConfig); >> > System.out.println("Indexing to directory '" + indexDir + "'..."); >> > int indexedDocumentCount = indexer.indexDocs(indexWriter, conn); >> > indexWriter.close(); >> > System.out.println(indexedDocumentCount + " records have been indexed >> > successfully"); } catch (Exception e) { >> > e.printStackTrace(); >> > } >> > } >> > >> > int indexDocs(IndexWriter writer, Connection conn) throws Exception { >> > String sql = QUERY1; >> > Statement stmt = conn.createStatement(); >> > ResultSet rs = stmt.executeQuery(sql); >> > int i=0; >> > while (rs.next()) { >> > Document d = new Document(); >> > d.add(new TextField("cpn", rs.getString("cpn"), Field.Store.YES)); >> > >> > writer.addDocument(d); >> > i++; >> > } >> > stmt.close(); >> > rs.close(); >> > >> > return i; >> > } >> > >> > >> > Searching code: >> > >> > public class SimpleDBSearcher { >> > // PLASTRON >> > private static final String LUCENE_QUERY = "SD*"; private static final >> int >> > MAX_HITS = 500; private static final String INDEX_DIR = "C:/DBIndexAll/"; >> > >> > public static void main(String[] args) throws Exception { // File >> indexDir = new >> > File(SimpleDBIndexer.INDEX_DIR); final Path indexDir = >> > Paths.get(SimpleDBIndexer.INDEX_DIR); >> > String query = LUCENE_QUERY; >> > SimpleDBSearcher searcher = new SimpleDBSearcher(); >> > searcher.searchIndex(indexDir, query); } >> > >> > private void searchIndex(Path indexDir, String queryStr) throws >> Exception { >> > Directory directory = FSDirectory.open(indexDir); System.out.println("The >> > query string is " + queryStr); MultiFieldQueryParser queryParser = new >> > MultiFieldQueryParser(new String[] { "cpn" }, new StandardAnalyzer()); >> > IndexReader reader = DirectoryReader.open(directory); IndexSearcher >> > searcher = new IndexSearcher(reader); >> > queryParser.getAllowLeadingWildcard(); >> > >> > Query query = queryParser.parse(queryStr); TopDocs topDocs = >> > searcher.search(query, MAX_HITS); >> > >> > ScoreDoc[] hits = topDocs.scoreDocs; >> > System.out.println(hits.length + " Record(s) Found"); for (int i = 0; i < >> > hits.length; i++) { int docId = hits[i].doc; Document d = >> searcher.doc(docId); >> > System.out.println("\"cpn value is:\" " + d.get("cpn")); } if >> (hits.length == 0) { >> > System.out.println("No Data Founds "); } >> > >> > } >> > } >> > >> > >> > Please help here, thanks in advance. >> > >> > Regards, >> > Bhaskar >> > >> > On Tue, Sep 29, 2015 at 3:47 AM, Uwe Schindler <u...@thetaphi.de> wrote: >> > >> > > Hi Erick, >> > > >> > > This mail was in Lucene's user mailing list. This is not about Solr, >> > > so user cannot provide his Solr config! :-) In any case, it would be >> > > good to get the Analyzer + code you use while indexing and also the >> > > code (+ Analyzer) that creates the query while searching. >> > > >> > > Uwe >> > > >> > > ----- >> > > Uwe Schindler >> > > H.-H.-Meier-Allee 63, D-28213 Bremen >> > > http://www.thetaphi.de >> > > eMail: u...@thetaphi.de >> > > >> > > >> > > > -----Original Message----- >> > > > From: Erick Erickson [mailto:erickerick...@gmail.com] >> > > > Sent: Monday, September 28, 2015 6:01 PM >> > > > To: java-user >> > > > Subject: Re: Need help in alphanumeric search >> > > > >> > > > You need to supply the definitions of this field from your >> > > > schema.xml >> > > file, >> > > > both the <field> and <fieldType> >> > > > >> > > > Additionally, please provide the results of the query you're trying >> > > > with &debug=true appended. >> > > > >> > > > The adminUI/analysis page is very helpful in these situations as >> well. >> > > Select >> > > > the appropriate core from the drop-down on the left and you'll see >> > > > an "analysis" >> > > > section appear that shows you exactly what happens when the field is >> > > > analyzed. >> > > > >> > > > Best, >> > > > Erick >> > > > >> > > > On Mon, Sep 28, 2015 at 5:01 AM, Bhaskar <bhaskar1...@gmail.com> >> > wrote: >> > > > > Thanks Lan for reply. >> > > > > >> > > > > cpn values are like 123-0049, 342-043, ab23-090, hedwsdg >> > > > > >> > > > > my application is working when i gave search for below inputs >> > > > > 1) ab* >> > > > > 2)hedwsdg >> > > > > 3) hed* >> > > > > >> > > > > but it is not working for >> > > > > 1) 123* >> > > > > 2) 123-0049 >> > > > > 3) ab23* >> > > > > >> > > > > >> > > > > Note: if the search input has number then it is not working. >> > > > > >> > > > > Thanks in advacne. >> > > > > >> > > > > >> > > > > On Mon, Sep 28, 2015 at 3:49 PM, Ian Lea <ian....@gmail.com> >> wrote: >> > > > > >> > > > >> Hi >> > > > >> >> > > > >> >> > > > >> Can you provide a few examples of values of cpn that a) are and >> > > > >> b) are not being found, for indexing and searching. >> > > > >> >> > > > >> You may also find some of the tips at >> > > > >> >> > > > >> http://wiki.apache.org/lucene- >> > > > java/LuceneFAQ#Why_am_I_getting_no_hits >> > > > >> _.2F_incorrect_hits.3F >> > > > >> useful. >> > > > >> >> > > > >> You haven't shown the code that created the IndexWriter so the >> > > > >> tip about using the same analyzer at index and search time might >> > > > >> be relevant. >> > > > >> >> > > > >> >> > > > >> >> > > > >> -- >> > > > >> Ian. >> > > > >> >> > > > >> >> > > > >> On Mon, Sep 28, 2015 at 10:49 AM, Bhaskar >> > <bhaskar1...@gmail.com> >> > > > wrote: >> > > > >> > Hi, >> > > > >> > I am beginner in Apache lucene, I am using 5.3.1. >> > > > >> > I have created the index on the database result. The index >> > > > >> > values are having alphanumeric and strings values. I am able to >> > > > >> > search the strings >> > > > >> but >> > > > >> > I am not able to search alphanumeric values. >> > > > >> > >> > > > >> > Can someone help me here. >> > > > >> > >> > > > >> > Below is indexing code... >> > > > >> > >> > > > >> > int indexDocs(IndexWriter writer, Connection conn) throws >> > > > >> > Exception { Statement stmt = conn.createStatement(); >> > > > >> > ResultSet rs = stmt.executeQuery(sql); >> > > > >> > int i=0; >> > > > >> > while (rs.next()) { >> > > > >> > Document d = new Document(); >> > > > >> > // System.out.println("cpn is" + rs.getString("cpn")); >> > > > >> > // System.out.println("mpn is" + rs.getString("mpn")); >> > > > >> > >> > > > >> > d.add(new TextField("cpn", rs.getString("cpn"), >> > > > >> > Field.Store.YES)); >> > > > >> > >> > > > >> > >> > > > >> > writer.addDocument(d); >> > > > >> > i++; >> > > > >> > } >> > > > >> > } >> > > > >> > >> > > > >> > Searching code: >> > > > >> > >> > > > >> > >> > > > >> > private void searchIndex(Path indexDir, String queryStr) throws >> > > > >> Exception { >> > > > >> > Directory directory = FSDirectory.open(indexDir); >> > > > >> > System.out.println("The query string is " + queryStr); // >> > > > >> > MultiFieldQueryParser queryParser = new >> > > > >> > MultiFieldQueryParser(new // String[] {"mpn"}, new >> > > > >> > StandardAnalyzer()); // IndexReader reader = >> > > > >> > IndexReader.open(directory); IndexReader reader = >> > > > >> > DirectoryReader.open(directory); IndexSearcher searcher = new >> > > > >> > IndexSearcher(reader); Analyzer analyzer = new >> > > > >> > StandardAnalyzer(); analyzer.tokenStream("cpn", queryStr); >> > > > >> > QueryParser parser = new QueryParser("cpn", analyzer); >> > > > >> > parser.setDefaultOperator(Operator.OR); >> > > > >> > parser.getAllowLeadingWildcard(); >> > > > >> > parser.setAutoGeneratePhraseQueries(true); >> > > > >> > Query query = parser.parse(queryStr); searcher.search(query, >> > > > >> > 100); TopDocs topDocs = searcher.search(query, MAX_HITS); >> > > > >> > >> > > > >> > ScoreDoc[] hits = topDocs.scoreDocs; >> > > > >> > System.out.println(hits.length >> > > > >> > + " Record(s) Found"); for (int i = 0; i < hits.length; i++) { >> > > > >> > + int >> > > > >> > docId = hits[i].doc; Document d = searcher.doc(docId); >> > > > >> > System.out.println("\"value is:\" " + d.get("cpn")); } if >> > > > >> > (hits.length == 0) { System.out.println("No Data Founds "); } >> > > > >> > >> > > > >> > >> > > > >> > Thanks in advance. >> > > > >> > >> > > > >> > -- >> > > > >> > Keep Smiling.... >> > > > >> > Thanks & Regards >> > > > >> > Bhaskar. >> > > > >> > Mobile:9866724142 >> > > > >> >> > > > >> ----------------------------------------------------------------- >> > > > >> ---- To unsubscribe, e-mail: >> > > > >> java-user-unsubscr...@lucene.apache.org >> > > > >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> > > > >> >> > > > >> >> > > > > >> > > > > >> > > > > -- >> > > > > Keep Smiling.... >> > > > > Thanks & Regards >> > > > > Bhaskar. >> > > > > Mobile:9866724142 >> > > > >> > > > -------------------------------------------------------------------- >> > > > - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> > > > For additional commands, e-mail: java-user-h...@lucene.apache.org >> > > >> > > >> > > --------------------------------------------------------------------- >> > > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> > > For additional commands, e-mail: java-user-h...@lucene.apache.org >> > > >> > > >> > >> > >> > -- >> > Keep Smiling.... >> > Thanks & Regards >> > Bhaskar. >> > Mobile:9866724142 >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > > -- > Keep Smiling.... > Thanks & Regards > Bhaskar. > Mobile:9866724142 --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
