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From amarnath cse <amarnath.cse....@nitmz.ac.in>
Subject Re: Non-index files under the search directory
Date Tue, 22 Nov 2016 17:21:47 GMT
Can anyone tell me the procedure of text document indexing using Lucene.

Thanks..
On Nov 22, 2016 10:40 PM, "András Péteri" <apeteri@b2international.com>
wrote:

> Hi Xiaolong,
>
> A Map of key-value pairs can be supplied to
> IndexWriter#setCommitData(Map<String,String>) and will be persisted
> when committing changes (setting the commit data counts as a change).
> It can be retrieved with IndexWriter#getCommitData() later.
>
> This may serve as good storage for metadata; as an example,
> Elasticsearch stores attributes related to its transaction log there
> (UUID and generation identifier).
>
> Regards,
> András
>
> On Tue, Nov 22, 2016 at 5:40 PM, Xiaolong Zheng <zhengxiaolong@gmail.com>
> wrote:
> > Thanks, StoredField seems still down to the per-document level, which
> means
> > for every document they will contains this search field.
> >
> > What I really would like is a global level storage to hold this single
> > value. Maybe this is impossible.
> >
> > Sincerely,
> >
> > --Xiaolong
> >
> >
> > On Tue, Nov 22, 2016 at 5:13 AM, Michael McCandless <
> > lucene@mikemccandless.com> wrote:
> >
> >> Lucene won't merge foreign files for you, and in general it's
> >> dangerous to put such files into Lucene's index directory because if
> >> they look like codec files Lucene may delete them.
> >>
> >> Can you just add a StoredField to each document to hold your
> information?
> >>
> >> Mike McCandless
> >>
> >> http://blog.mikemccandless.com
> >>
> >>
> >> On Mon, Nov 21, 2016 at 11:38 PM, Xiaolong Zheng
> >> <zhengxiaolong@gmail.com> wrote:
> >> > Hello,
> >> >
> >> > I am trying to adding some meta data into the search data base.
> Instead
> >> of
> >> > adding a new search filed or adding a phony document, I am looking at
> the
> >> > method org.apache.lucene.store.Directory#createOutpu, which is create
> >> new
> >> > file in the search directory.
> >> >
> >> >
> >> > I am wondering does indexwriter can also merge this non-index file
> while
> >> it
> >> > merging multiple search index?
> >> >
> >> > And if I am stepping back a little bit, what's is the best way to add
> >> meta
> >> > data into the search database.
> >> >
> >> > For example, I would like to add a indicator which is showing the
> >> different
> >> > kind of stemmer is being used while it created.
> >> >
> >> >
> >> >
> >> >
> >> >
> >> > Thanks,
> >> >
> >> > --Xiaolong
> >>
>
> --
> András Péteri
>
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