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Lucene
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Some questions...

Hi I want to ask two question here- 1- Does lucene provide a tokenizer which can use string as a delimiter if not someone please give me some gyan ) about how to do it. 2- Is there a way I can

Caching in lucene

On 9/17/07 Shailendra Mudgal <mudgal.shailendra@(protected) > wrote > One thing that i understand about IndexReader is that for subsequent > queries results come fast as the IndexReader needs to be wa

Subject: Re: Span queries and complex scoring

On Sep 17 2007 at 6 51 AM melix wrote > I 've faced the very same problem with NearSpansOrdered and so on. I > think > unless there is a very good reason for it classes should be made > publi

Subject: Re: a query for a special AND?

On Monday 17 September 2007 11 40 Mohammad Norouzi wrote > Hi > I have a problem in getting correct result from Lucene consider we have an > index containing documents with fields "field1 " and "fie

Subject: Re: How to tokenize with comma in standard tokenizer

Take the comma out of | <#P ( "_ "| "- "| "/ "| ". "| " ") > in the .jj file (around line 92). Keep in mind that this will affect being able to find tokens that where previously indexed with the comma ther

Subject: How to tokenize with comma in standard tokenizer

Hi Standard tokenizer works pretty well for me... but i found one problem with my usage... I want to tokenize... "TheRing6 Proposal6 GuyandGirl6 " as a three saparate tokens.. while standard analyzer

Subject: Re: Java Heap Space -Out Of Memory Error

As I mentioned IndexReader is the one that holds the memory. You should explicitly close the underlying IndexReader to make sure that the reader releases the memory. Sebastin wrote > > Hi test

Caching in lucene

Hi All One thing that i understand about IndexReader is that for subsequent queries results come fast as the IndexReader needs to be warmed up. According to this I am trying to find out the answer

Subject: Re: Span queries and complex scoring

Thanks Paul. I 'm doing something very similar but I 'd like to notice that it is very hard to "extend " Lucene without breaking compatibility. I mean I have written classes that expand SpanQueries bu

Subject: Sort on ParallelMultiSearcher with remote searchables

I want to sort results of a query according to a specific field(date).I have a parallelMultiSearcher with some underlying remote searchers. Indexes in remote searchables are large and enabling sort w

Subject: a query for a special AND?

Hi I have a problem in getting correct result from Lucene consider we have an index containing documents with fields "field1 " and "field2 " etc. now I want to have documents in which their field1 are

Subject: Re: Java Heap Space -Out Of Memory Error

Hi testn Every IndexFolder is of size 1.5 GB of size eventhough when i used to Open and close the IndexSearcher it wont release the memory for all the searches. When i se

Subject: Re: multiple Tokens in a Tokengroup not matching

I really can 't tell much from your e-mail. What I 'd recommend is that you get a copy of Luke and examine your index (including your query and it 's results). Also try query.toString() to see what the

Subject: Re: Mixing SpanQuery and BooleanQuery

Yeah a SpanAndQuery could easily be a SpanNearQuery if a huge distance was allowed. I do wonder how the scoring might be different based on the distance of the match though... Erick Erickson wrote

Subject: Re: Java Heap Space -Out Of Memory Error

HI testn could you trigger me out the You can simply create a wrapper that return MultiReader which you can cache for a while and close the oldest index once the date rolls. this poi

Subject: Re: Java Heap Space -Out Of Memory Error

If you know that there are only 15 days of indexes you need to search on you just need to open only the latest 15 indexes at a time right? You can simply create a wrapper that return MultiReader whi

Subject: Re: Lucene indexes and relationship

Sounds like faceting I think. Have you looked at Solr? -Grant On Sep 15 2007 at 1 15 AM Mohammad Norouzi wrote > Hello > In our application we have many categories (indexes) in which > di

Subject: Re: regarding FieldSelector

well I can 't see any doc() method with FieldSelector argument perhaps this is provided in nightly builds of Lucene currently I am using Lucene v2.1.0 2.2 was released in June in it the Searc

Subject: Re: Java Heap Space -Out Of Memory Error

HI testn it gives performance improvement while optimizing the Index. Now i seprate the IndexStore on a daily basis.(ie) For Every Day it create a new Index store sep- 08-2007 sep-09-2007 like

Subject: Lucene indexes and relationship

Hello In our application we have many categories (indexes) in which different kind of information have been indexed. we provided a facility for our users to opt their category to search and we also

Subject: Re: regarding FieldSelector

well I can 't see any doc() method with FieldSelector argument perhaps this is provided in nightly builds of Lucene currently I am using Lucene v2.1.0 I am using org.apache.lucene.search.Searcher an

Subject: Re: UTF-8/unicode input in querying in Lucene

> I don 't believe the QueryParser actually treats \uNNNNN as a special > syntax LUCENE-716 added unicode escapes. doh! that 's what i get for assuming the random solr port i used to sanity

Subject: Re: UTF-8/unicode input in querying in Lucene

On 9/14/07 Chris Hostetter <hossman_lucene@(protected) > wrote > I don 't believe the QueryParser actually treats \uNNNNN as a special > syntax LUCENE-716 added unicode escapes. -Yonik

Subject: Re: UTF-8/unicode input in querying in Lucene

The page http //lucene.apache.org/java/docs/queryparsersyntax.html does not mention that \uNNNN Unicode syntax is supported. For example \u0048\u0045\u004c\u004c\u004f is HELLO. Please a

Subject: UTF-8/unicode input in querying in Lucene

Hi- The page http //lucene.apache.org/java/docs/queryparsersyntax.html does not mention that \uNNNN Unicode syntax is supported. For example \u0048\u0045\u004c\u004c\u004f is HELLO. Please add th

Subject: Re: Java Heap Space -Out Of Memory Error

So did you see any improvement in performance? Sebastin wrote > > It works finally .i use Lucene 2.2 in my application.thanks testn and > Mike > > Michael McCandless-2 wrote > > > > > > It sound

Subject: Problem compiling with JBoss portal server

Hello all I ran into an issue "can not resolve symbol " while compiling my class that uses MultiFieldQueryParser class. It turns out that the version of Jboss portal 2.6 Beta 1 that we are using

Subject: Re: how best to limit search result to a subset of document ids?

Hi Chris Have a look at the "TermsFilter " in contrib/queries. The code would look something like this TermsFilter filter new TermsFilter() // for( all 5 id terms.... filter.addTerm(ne

Subject: how best to limit search result to a subset of document ids?

hello-- i 'm trying to figure out the best way to limit a query to a small subset if a lucene index 's documents and i 'm a bit of a novice and a bit stumped... my scenario is 1) search the index f

Subject: Re: Oracle-Lucene integration (OJVMDirectory and Lucene Domain Index) - LONG

Hi Joaquin Very interested to know the indexing performance inside Oracle JVM especially with large amount of data. -- Chris Lu
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