Hi, I am looking for sentence search rather than word search. Regards, Bhaskar On Oct 1, 2015 7:07 PM, "Ian Lea" <ian....@gmail.com> wrote:
> 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 > >
