Hi Digy, It was my fault that i didnt say it clearly. I mean I have created an index,but it is not updated real time. So I want to update the index everytime after I add data to database to keep the index up-to-date. My data is what user inputs and inserted to database.Then
BTW, I know how to delete a term from index using IndexReader. Likewise, I want to write a term to the created index instead of creating a new index. I appreciate your time. Thanks, Wen 2011/3/2 Digy <digyd...@gmail.com> > > First of all, your code doesn't mean anything to me other than you add some > fields to a document object. > > Also, I can't see what you mean with *existing* index. The directory you > pass to the IndexWriter is the index you use > and every document added(using IndexWriter's AddDocument) is written to > that > index. > > I think, we have problems in using a common terminology. > > DIGY > > PS: It would be better if you use "user" mailing list to ask questions. > This > mailing lists is intented to be for development purposes. > > > > > -----Original Message----- > From: Wen Gao [mailto:samuel.gao...@gmail.com] > Sent: Wednesday, March 02, 2011 11:02 PM > To: lucene-net-dev@lucene.apache.org > Subject: [Lucene.Net] how to add a new record to existing index > > Hi, > I already have created an index, and I want to insert an index record to > this existing index everytime I insert a new record to database. > For example, if I want to insert an reord ("l1", "15","tom", > "20","2010/01/02") to my *existing* index, how can i do this? (I dont want > to create a new index, which takes too much time) > > my format of index is as follows: > /////////////////////////// > doc.Add(new Lucene.Net.Documents.Field( > "lmname", > readerreader1["lmname"].ToString(), > //new > System.IO.StringReader(readerreader["cname"].ToString()), > Lucene.Net.Documents.Field.Store.YES, > Lucene.Net.Documents.Field.Index.TOKENIZED) > > ); > > //lmid > doc.Add(new Lucene.Net.Documents.Field( > "lmid", > readerreader1["lmid"].ToString(), > Lucene.Net.Documents.Field.Store.YES, > Lucene.Net.Documents.Field.Index.UN_TOKENIZED)); > > // nick name of user > doc.Add(new Lucene.Net.Documents.Field( > "nickName", > readerreader1["nickName"].ToString(), > Lucene.Net.Documents.Field.Store.YES, > Lucene.Net.Documents.Field.Index.UN_TOKENIZED)); > // uid > doc.Add(new Lucene.Net.Documents.Field( > "uid", > readerreader1["uid"].ToString(), > Lucene.Net.Documents.Field.Store.YES, > Lucene.Net.Documents.Field.Index.UN_TOKENIZED)); > > // acttime > doc.Add(new Lucene.Net.Documents.Field( > "acttime", > readerreader1["acttime"].ToString(), > Lucene.Net.Documents.Field.Store.YES, > Lucene.Net.Documents.Field.Index.UN_TOKENIZED)); > writer.AddDocument(doc); > /////////////////////////////////////////////////// > > Thanks, > Wen > >
