One more question
""d.add(new Field("txt", rs.getString("subject"), Field.Store.NO,
Field.Index.ANALYZED));"""
the field txt is a blob ...how can i index a blob? with rs.geBlob(txt) ?
thank
luciusvorenus wrote:
>
>
> ""
>
> Exception in thread "main" java.lang.NullPointerException
> at
> org.apache.lucene.analysis.StopFilter.getEnablePositionIncrementsVersionDefault(StopFilter.java:162)
> at
> org.apache.lucene.analysis.standard.StandardAnalyzer.<init>(StandardAnalyzer.java:73)
> at
> org.apache.lucene.analysis.standard.StandardAnalyzer.<init>(StandardAnalyzer.java:63)
> at Con.main(Con.java:29)
>
> """
> did you get also this message after the compilation?
>
>
> br
>
>
>
> Marc Schwarz wrote:
>>
>> I had that problem yesterday... this works in my app:
>>
>> Directory directory = new SimpleFSDirectory(new
>> File("c:\\lucene\\index"));
>>
>> IndexWriter w = new IndexWriter(directory, analyzer,true,
>> new IndexWriter.MaxFieldLength(25000));
>>
>>
>>
>> -----Ursprüngliche Nachricht-----
>> Von: Erick Erickson [mailto:erickerick...@gmail.com]
>> Gesendet: Donnerstag, 28. Januar 2010 21:47
>> An: java-user@lucene.apache.org
>> Betreff: Re: index a database
>>
>> What version are you using? Because there's no such constructor
>> (i.e. one that takes a File) in 3.0.....
>>
>> You might want to use something like FSDirectory.open(file) in
>> your IndexWriter constructor....
>>
>> If this doesn't work, more details please....
>>
>> Erick
>>
>> On Thu, Jan 28, 2010 at 3:30 PM, luciusvorenus
>> <lucius.vore...@hotmail.de>wrote:
>>
>>>
>>> Hello
>>>
>>> I tried to index a database
>>>
>>> ""
>>> import org.apache.lucene.demo.FileDocument;
>>> import org.apache.lucene.document.Document;
>>> import org.apache.lucene.document.Field;
>>> import org.apache.lucene.analysis.Analyzer;
>>> import org.apache.lucene.analysis.standard.StandardAnalyzer;
>>> import org.apache.lucene.index.IndexWriter;
>>> import org.apache.lucene.search.IndexSearcher;
>>> import org.apache.lucene.search.Query;
>>> import org.apache.lucene.queryParser.QueryParser;
>>> import org.apache.lucene.store.FSDirectory;
>>> import org.apache.lucene.util.Version;
>>> import java.sql.*;
>>> import java.util.Properties;
>>> import org.apache.lucene.document.*;
>>> import java.io.*;
>>> import org.apache.lucene.store.Directory;
>>> import org.apache.lucene.store.FSDirectory;
>>>
>>> public class Con{
>>> public static void main(String[] args) throws Exception
>>>
>>> {
>>> final File INDEX_DIR = new File("index");
>>>
>>>
>>> Class.forName("com.mysql.jdbc.Driver").newInstance();
>>> Connection conn =
>>> DriverManager.getConnection("jdbc:mysql://127.0.0.1/test", "root",
>>> "passwort");
>>> StandardAnalyzer analyzer = new
>>> StandardAnalyzer(null);
>>> IndexWriter writer = new IndexWriter(INDEX_DIR,
>> analyzer,
>>> true);
>>> System.out.println("Indexing to directory '" +
>>> INDEX_DIR
>>> + "'...");
>>> indexDocs(writer, conn);
>>> writer.optimize();
>>> writer.close();
>>>
>>>
>>>
>>> }
>>>
>>>
>>> private static void indexDocs(IndexWriter writer, Connection conn)
>>> throws
>>> Exception {
>>> String sql = "select c_id, city from city";
>>> Statement stmt = conn.createStatement();
>>> ResultSet rs = stmt.executeQuery(sql);
>>> while (rs.next()) {
>>> Document d = new Document();
>>> d.add(new Field("c_id", rs.getString("c_id"),
>>> Field.Store.YES,
>>> Field.Index.NO));
>>> d.add(new Field("city", rs.getString("city"),
>>> Field.Store.NO,
>>> Field.Index.ANALYZED));
>>>
>>> writer.addDocument(d);
>>> }
>>>
>>> }
>>> }
>>> """
>>> and i get this message
>>>
>>> ""
>>> symbol : constructor
>>>
>>>
>> IndexWriter(java.io.File,org.apache.lucene.analysis.standard.StandardAnalyze
>> r,boolean)
>>> location: class org.apache.lucene.index.IndexWriter
>>> IndexWriter writer = new IndexWriter(INDEX_DIR,
>> analyzer,
>>> true);
>>> ^
>>> 1 error
>>>
>>> What i am doing wrong??
>>>
>>> I'm a newbie ...
>>>
>>> Thank U
>>> --
>>> View this message in context:
>>> http://old.nabble.com/index-a-database-tp27358959p27358959.html
>>> Sent from the Lucene - Java Users mailing list archive at Nabble.com.
>>>
>>>
>>> ---------------------------------------------------------------------
>>> 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
>>
>>
>>
>
>
--
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