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From: <ma...@ga...> - 2005-02-18 20:52:33
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Hi, I just downloaded the sample app and would like to use the dll to enhance my "No-Fulltext-Database" with dotlucene... Does anybody have some example code on how to accomplish this? For example, I want to store html-texts in the db, so I would have to index the extracted plain text of these texts with dotlucene and store the PrimaryKey of the database-field somewhere with the index information. On subsequent updates of the database I would have to update the index as well. Can I update the index for individual documents? Any help would be appreciated... Thanks, Max |
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From: Ivan V. Ai <ved...@gm...> - 2005-02-19 15:20:46
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You can. When Lucene index is built, you may delete and add documents to it as you deem necessary. You may also Index.Optimize() every now or then,... just to cleanup files a bit and compact everything in a single index file. Regards, Ivan On Fri, 18 Feb 2005 22:04:01 +0100 (CET), ma...@ga... <ma...@ga...> wrote: > Hi, > > I just downloaded the sample app and would like to use the dll to enhance > my "No-Fulltext-Database" with dotlucene... > > Does anybody have some example code on how to accomplish this? > > For example, I want to store html-texts in the db, so I would have to > index the extracted plain text of these texts with dotlucene and store the > PrimaryKey of the database-field somewhere with the index information. > > On subsequent updates of the database I would have to update the index as > well. > Can I update the index for individual documents? > > Any help would be appreciated... > > Thanks, Max > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > Dotlucene-developer mailing list > Dot...@li... > https://lists.sourceforge.net/lists/listinfo/dotlucene-developer > -- [House-of-IX] -- Ivan Vedic Ai ___________________________________ Chief Engineer - Information Technology dept: NegEntropic Continuum Dynamics spec: Systems Engineering ------------------------------------------------------------- .:: ved...@gm... .:: +386 40 202382 |
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From: <ma...@ga...> - 2005-02-20 13:07:19
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Alright thanks, I see how this works for new documents but what if a document (in my case database field) has changed. Can I tell dotlucene that a specific document (marked by some identifier, probably the PK of the db-field) has changed? Grtz, Max > You can. > > When Lucene index is built, you may delete and add documents to it as > you deem necessary. You may also Index.Optimize() every now or > then,... just to cleanup files a bit and compact everything in a > single index file. > > Regards, > Ivan > > On Fri, 18 Feb 2005 22:04:01 +0100 (CET), ma...@ga... <ma...@ga...> > wrote: >> Hi, >> >> I just downloaded the sample app and would like to use the dll to >> enhance >> my "No-Fulltext-Database" with dotlucene... >> >> Does anybody have some example code on how to accomplish this? >> >> For example, I want to store html-texts in the db, so I would have to >> index the extracted plain text of these texts with dotlucene and store >> the >> PrimaryKey of the database-field somewhere with the index information. >> >> On subsequent updates of the database I would have to update the index >> as >> well. >> Can I update the index for individual documents? >> >> Any help would be appreciated... >> >> Thanks, Max >> >> ------------------------------------------------------- >> SF email is sponsored by - The IT Product Guide >> Read honest & candid reviews on hundreds of IT Products from real users. >> Discover which products truly live up to the hype. Start reading now. >> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click >> _______________________________________________ >> Dotlucene-developer mailing list >> Dot...@li... >> https://lists.sourceforge.net/lists/listinfo/dotlucene-developer >> > > > -- > [House-of-IX] -- Ivan Vedic Ai > ___________________________________ > Chief Engineer - Information Technology > dept: NegEntropic Continuum Dynamics > spec: Systems Engineering > ------------------------------------------------------------- > .:: ved...@gm... > .:: +386 40 202382 > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > Dotlucene-developer mailing list > Dot...@li... > https://lists.sourceforge.net/lists/listinfo/dotlucene-developer > |
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From: Ivan V. Ai <ved...@gm...> - 2005-02-21 08:12:57
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I think you can't... ... but there is remote possibility I might be wrong, since I haven't fully explored the entire source code yet. ;) anyway, What you might need to do is find-delete (preferably by PK Keyword identifier) the document that has changed and then Add new document with new data. I used the procedure described in: http://nagoya.apache.org/eyebrowse/ReadMsg?lis...@ja...&msgNo=6300 In addition, you also might wish to use RAMDirecotry for updates and then "flush-combine" it on disk (or any other appropriate permanent storage) index using: AddIndexes(new Directory[] {oldIndexStorage, updateIndexStorage}) method of new IndexWritter. Regards, Ivan On Sun, 20 Feb 2005 14:18:51 +0100 (CET), ma...@ga... <ma...@ga...> wrote: > Alright thanks, > > I see how this works for new documents but what if a document (in my case > database field) has changed. > > Can I tell dotlucene that a specific document (marked by some identifier, > probably the PK of the db-field) has changed? > > Grtz, Max > > > > You can. > > > > When Lucene index is built, you may delete and add documents to it as > > you deem necessary. You may also Index.Optimize() every now or > > then,... just to cleanup files a bit and compact everything in a > > single index file. > > > > Regards, > > Ivan > > > > On Fri, 18 Feb 2005 22:04:01 +0100 (CET), ma...@ga... <ma...@ga...> > > wrote: > >> Hi, > >> > >> I just downloaded the sample app and would like to use the dll to > >> enhance > >> my "No-Fulltext-Database" with dotlucene... > >> > >> Does anybody have some example code on how to accomplish this? > >> > >> For example, I want to store html-texts in the db, so I would have to > >> index the extracted plain text of these texts with dotlucene and store > >> the > >> PrimaryKey of the database-field somewhere with the index information. > >> > >> On subsequent updates of the database I would have to update the index > >> as > >> well. > >> Can I update the index for individual documents? > >> > >> Any help would be appreciated... > >> > >> Thanks, Max > >> > >> ------------------------------------------------------- > >> SF email is sponsored by - The IT Product Guide > >> Read honest & candid reviews on hundreds of IT Products from real users. > >> Discover which products truly live up to the hype. Start reading now. > >> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > >> _______________________________________________ > >> Dotlucene-developer mailing list > >> Dot...@li... > >> https://lists.sourceforge.net/lists/listinfo/dotlucene-developer > >> > > > > > > -- > > [House-of-IX] -- Ivan Vedic Ai > > ___________________________________ > > Chief Engineer - Information Technology > > dept: NegEntropic Continuum Dynamics > > spec: Systems Engineering > > ------------------------------------------------------------- > > .:: ved...@gm... > > .:: +386 40 202382 > > > > > > ------------------------------------------------------- > > SF email is sponsored by - The IT Product Guide > > Read honest & candid reviews on hundreds of IT Products from real users. > > Discover which products truly live up to the hype. Start reading now. > > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > > _______________________________________________ > > Dotlucene-developer mailing list > > Dot...@li... > > https://lists.sourceforge.net/lists/listinfo/dotlucene-developer > > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > Dotlucene-developer mailing list > Dot...@li... > https://lists.sourceforge.net/lists/listinfo/dotlucene-developer > |
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From: <ma...@ga...> - 2005-02-21 09:06:03
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Okay, thanks. The solution with two indexes sounds good. Updates will be made to "shadow index" and every now and then you switch indexes. I would use this for a web app, so I'd use an app-wide index. If I use in-memory indexes, for open IndexSearchers would I still have to wait for them to be closed, or can I just assign the "shadow-index" being the new app-wide index? Maybe I am thinking to complicated here ;-) > I think you can't... > ... but there is remote possibility I might be wrong, since I haven't > fully explored the entire source code yet. ;) > > anyway, > What you might need to do is find-delete (preferably by PK Keyword > identifier) the document that has changed and then Add new document > with new data. I used the procedure described in: > http://nagoya.apache.org/eyebrowse/ReadMsg?lis...@ja...&msgNo=6300 > > In addition, you also might wish to use RAMDirecotry for updates and > then "flush-combine" it on disk (or any other appropriate permanent > storage) index using: > AddIndexes(new Directory[] {oldIndexStorage, updateIndexStorage}) > method of new IndexWritter. > > Regards, > Ivan > > On Sun, 20 Feb 2005 14:18:51 +0100 (CET), ma...@ga... <ma...@ga...> > wrote: >> Alright thanks, >> >> I see how this works for new documents but what if a document (in my >> case >> database field) has changed. >> >> Can I tell dotlucene that a specific document (marked by some >> identifier, >> probably the PK of the db-field) has changed? >> >> Grtz, Max >> >> >> > You can. >> > >> > When Lucene index is built, you may delete and add documents to it as >> > you deem necessary. You may also Index.Optimize() every now or >> > then,... just to cleanup files a bit and compact everything in a >> > single index file. >> > >> > Regards, >> > Ivan >> > >> > On Fri, 18 Feb 2005 22:04:01 +0100 (CET), ma...@ga... >> <ma...@ga...> >> > wrote: >> >> Hi, >> >> >> >> I just downloaded the sample app and would like to use the dll to >> >> enhance >> >> my "No-Fulltext-Database" with dotlucene... >> >> >> >> Does anybody have some example code on how to accomplish this? >> >> >> >> For example, I want to store html-texts in the db, so I would have to >> >> index the extracted plain text of these texts with dotlucene and >> store >> >> the >> >> PrimaryKey of the database-field somewhere with the index >> information. >> >> >> >> On subsequent updates of the database I would have to update the >> index >> >> as >> >> well. >> >> Can I update the index for individual documents? >> >> >> >> Any help would be appreciated... >> >> >> >> Thanks, Max >> >> >> >> ------------------------------------------------------- >> >> SF email is sponsored by - The IT Product Guide >> >> Read honest & candid reviews on hundreds of IT Products from real >> users. >> >> Discover which products truly live up to the hype. Start reading now. >> >> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click >> >> _______________________________________________ >> >> Dotlucene-developer mailing list >> >> Dot...@li... >> >> https://lists.sourceforge.net/lists/listinfo/dotlucene-developer >> >> >> > >> > >> > -- >> > [House-of-IX] -- Ivan Vedic Ai >> > ___________________________________ >> > Chief Engineer - Information Technology >> > dept: NegEntropic Continuum Dynamics >> > spec: Systems Engineering >> > ------------------------------------------------------------- >> > .:: ved...@gm... >> > .:: +386 40 202382 >> > >> > >> > ------------------------------------------------------- >> > SF email is sponsored by - The IT Product Guide >> > Read honest & candid reviews on hundreds of IT Products from real >> users. >> > Discover which products truly live up to the hype. Start reading now. >> > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click >> > _______________________________________________ >> > Dotlucene-developer mailing list >> > Dot...@li... >> > https://lists.sourceforge.net/lists/listinfo/dotlucene-developer >> > >> >> ------------------------------------------------------- >> SF email is sponsored by - The IT Product Guide >> Read honest & candid reviews on hundreds of IT Products from real users. >> Discover which products truly live up to the hype. Start reading now. >> http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click >> _______________________________________________ >> Dotlucene-developer mailing list >> Dot...@li... >> https://lists.sourceforge.net/lists/listinfo/dotlucene-developer >> > |
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