Hi Gimatha, Yes. It is possible to use IndexWriter updateDocument() to update document. But with that method what happens under the hood is it deletes matching documents and re-index new document. I need to update only a single field. Re-indexing a new document with updated field + other fields seems to be big overhead. My question is, why lucene does that and currently is there a way we can avoid this ?
Thanks, Chalitha On Fri, Jul 10, 2015 at 1:46 PM, Gimantha Bandara <giman...@wso2.com> wrote: > Hi Chalitha, > > You can simply use indexWriter.updateDocument to update the existing index > documents > > On Fri, Jul 10, 2015 at 11:38 AM, chalitha udara Perera < > chalithaud...@gmail.com> wrote: > > > Hi All, > > > > I have a requirement for updating lucene index (add single field for > > existing docs and modify value of another field). These documents contain > > many other fields that do not need any modifications. But as I understand > > luence provides delete/add mechanism for even single field value > updates. I > > would really appreciate if someone can explain me why lucene use these > > delete/add for updates as it feels like a real bottleneck. > > > > Is there any way to do single fields updates without using delete/add ? > > > > Thanks, > > Chalitha > > > > -- > > J.M Chalitha Udara Perera > > > > *Department of Computer Science and Engineering,* > > *University of Moratuwa,* > > *Sri Lanka* > > > > > > -- > Gimantha Bandara > Software Engineer > WSO2. Inc : http://wso2.com > Mobile : +94714961919 > -- J.M Chalitha Udara Perera *Department of Computer Science and Engineering,* *University of Moratuwa,* *Sri Lanka*
