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Posted to java-user@lucene.apache.org by poojasreejith <po...@pivotsys.com> on 2007/10/25 19:35:07 UTC
lucene indexing doubts
hi,
Can anyone of you guide me, how to index into an already indexed folder.
Right now, I am deleting the indexed info and running the indexer again. I
dont want to do that. I want a method, how to append into the same folder
when new files are indexed.
Is it possible? I couldn't find any solution for it.
Pooja
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Re: lucene indexing doubts
Posted by Karl Wettin <ka...@gmail.com>.
26 okt 2007 kl. 06.31 skrev poojasreejith:
> I have a folder which contains the indexed files. so, suppose if i
> want to add one more indexed data into it, without deleting the
> whole folder and performing the indexing for all the files again.
> I want it to do only that one file and add the index in the index
> folder.
I'm sorry, I still have a hard time understanding what you are asking.
Is this the Lucene folder you are speaking of? Do you want to merge
it with another index? Then take a look at the addIndexes methods in
IndexWriter.
Or does this folder of yours simply contain files you have created an
index of? You want to drop files in this folder and then figure out
what files has been added since the last time you updated the index?
Can you use the file timestamps? Index the filenames and search for
them?
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karl
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Re: lucene indexing doubts
Posted by poojasreejith <po...@pivotsys.com>.
hi,
thanks for your response. I think you hanven't got what my question is? I
will explain with an example. I have a folder which contains the indexed
files. so, suppose if i want to add one more indexed data into it, without
deleting the whole folder and performing the indexing for all the files
again. I want it to do only that one file and add the index in the index
folder.
karl wettin-3 wrote:
>
>
> 25 okt 2007 kl. 19.35 skrev poojasreejith:
>
>>
>> Can anyone of you guide me, how to index into an already indexed
>> folder.
>> Right now, I am deleting the indexed info and running the indexer
>> again. I
>> dont want to do that. I want a method, how to append into the same
>> folder
>> when new files are indexed.
>
> I'm not really sure I understand your question.
>
> Are you looking for the IndexWriter.deleteDocument method?
> <http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/index/
> IndexWriter.html#updateDocument(org.apache.lucene.index.Term,%
> 20org.apache.lucene.document.Document)>
>
> Are you looking for a delta, what has been changed in the filesystem
> since your last update? If you have no way of checking this, what
> about iterating all files and searching for their filename? Of course
> you will need to index the file name too.
>
> I hope this helps.
>
>
> --
> karl
>
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>
>
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Re: lucene indexing doubts
Posted by Karl Wettin <ka...@gmail.com>.
25 okt 2007 kl. 19.35 skrev poojasreejith:
>
> Can anyone of you guide me, how to index into an already indexed
> folder.
> Right now, I am deleting the indexed info and running the indexer
> again. I
> dont want to do that. I want a method, how to append into the same
> folder
> when new files are indexed.
I'm not really sure I understand your question.
Are you looking for the IndexWriter.deleteDocument method?
<http://lucene.apache.org/java/2_2_0/api/org/apache/lucene/index/
IndexWriter.html#updateDocument(org.apache.lucene.index.Term,%
20org.apache.lucene.document.Document)>
Are you looking for a delta, what has been changed in the filesystem
since your last update? If you have no way of checking this, what
about iterating all files and searching for their filename? Of course
you will need to index the file name too.
I hope this helps.
--
karl
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