ah.. I misread the thread,I thought you were using two APIs to acheive the same done by updateDocument. Yes it is an overhead and harder for user to keep track of the fields that he doesn't need to update. Already there is a Jira opened for this[1].
[1] https://issues.apache.org/jira/browse/LUCENE-4258 On Fri, Jul 10, 2015 at 1:58 PM, chalitha udara Perera < chalithaud...@gmail.com> wrote: > 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* > -- Gimantha Bandara Software Engineer WSO2. Inc : http://wso2.com Mobile : +94714961919
