Searching within a Search Result
Hi, I have a Lucene index that has the fields label and abstract. I want to do is first do a search by label field, for this i use: TopScoreDocCollector collector = TopScoreDocCollector.create(MAX_HITS, true > ); > searcher.search(q, collector); > ScoreDoc[] hits = collector.topDocs().scoreDocs; After the results of the first survey, I want to do a search in the abstract field only in results obtained from the first survey. How i do this? Thanks in advance. David
Re: Searching within a Search Result
Do this with the BooleanQuery: > Query q1 = new QueryParser(Version.LUCENE_43, "label", analyzer > ).parse(label); > Query q2 = new QueryParser(Version.LUCENE_43, "abstract", analyzer > ).parse(abstract); > BooleanQuery bq = new BooleanQuery(); > booleanQuery.add(q1,BooleanClause.Occur.MUST); > booleanQuery.add(q2,BooleanClause.Occur.MUST); > Hits hits = indexSearcher.search(booleanQuery); This is right for what I want to do? Thanks. 2013/8/6 Ian Lea The standard way is to combine the searches by label and abstract into > one query. If using QueryParser a simple example would look something > like label:aaa abstract:bbb abstract:ccc. You can get the same > effect, with more flexibility, by building a BooleanQuery in code. > > Also consider using a Filter e.g. QueryWrapperFilter on a query for > label:aaa with the query generated by QueryParser or direct > construction of a TermQuery. See also CachingWrapperFilter if the > index isn't constantly changing. > > > -- > Ian. > > > On Tue, Aug 6, 2013 at 3:19 PM, David Miranda > wrote: > > Hi, > > > > I have a Lucene index that has the fields label and abstract. > > > > I want to do is first do a search by label field, for this i use: > > > > TopScoreDocCollector collector = TopScoreDocCollector.create(MAX_HITS, > true > >> ); > >> searcher.search(q, collector); > >> ScoreDoc[] hits = collector.topDocs().scoreDocs; > > > > > > After the results of the first survey, I want to do a search in the > > abstract field only in results obtained from the first survey. > > > > How i do this? > > Thanks in advance. > > > > David > > ----- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > -- Cumprimentos, David Miranda
Re: Searching within a Search Result
I experimented with the previous code, but no results are returned from the index. Someone can give me an example? I have been for some time trying to implement this functionality. Thanks. 2013/8/6 David Miranda > Do this with the BooleanQuery: > >> Query q1 = new QueryParser(Version.LUCENE_43, "label", analyzer >> ).parse(label); >> Query q2 = new QueryParser(Version.LUCENE_43, "abstract", analyzer >> ).parse(abstract); >> BooleanQuery bq = new BooleanQuery(); >> booleanQuery.add(q1,BooleanClause.Occur.MUST); >> booleanQuery.add(q2,BooleanClause.Occur.MUST); >> Hits hits = indexSearcher.search(booleanQuery); > > > This is right for what I want to do? > > Thanks. > > 2013/8/6 Ian Lea > > The standard way is to combine the searches by label and abstract into >> one query. If using QueryParser a simple example would look something >> like label:aaa abstract:bbb abstract:ccc. You can get the same >> effect, with more flexibility, by building a BooleanQuery in code. >> >> Also consider using a Filter e.g. QueryWrapperFilter on a query for >> label:aaa with the query generated by QueryParser or direct >> construction of a TermQuery. See also CachingWrapperFilter if the >> index isn't constantly changing. >> >> >> -- >> Ian. >> >> >> On Tue, Aug 6, 2013 at 3:19 PM, David Miranda >> wrote: >> > Hi, >> > >> > I have a Lucene index that has the fields label and abstract. >> > >> > I want to do is first do a search by label field, for this i use: >> > >> > TopScoreDocCollector collector = TopScoreDocCollector.create(MAX_HITS, >> true >> >> ); >> >> searcher.search(q, collector); >> >> ScoreDoc[] hits = collector.topDocs().scoreDocs; >> > >> > >> > After the results of the first survey, I want to do a search in the >> > abstract field only in results obtained from the first survey. >> > >> > How i do this? >> > Thanks in advance. >> > >> > David >> >> - >> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >> For additional commands, e-mail: java-user-h...@lucene.apache.org >> >> > > > -- > Cumprimentos, > David Miranda > -- Cumprimentos, David Miranda
Re: Searching within a Search Result
Still can not implement this feature. Previously to perform a search in the 'label', I used the following code that worked: Query q = new QueryParser(Version.LUCENE_43, "label", analyzer > ).parse(label); > searcher.search(q, collector); > ScoreDoc[] hits = collector.topDocs().scoreDocs; But with BooleanQuery does not work. What I want is the result of those TopDocs, do the search but in the 'abstract' to filter. Has anyone implemented something similar? 2013/8/7 Ian Lea > Your BooleanQuery code looks fine. Do the label and abstract searches > work independently? Are there docs that match both searches? There > are tips on non-working searches in the FAQ at > > http://wiki.apache.org/lucene-java/LuceneFAQ#Why_am_I_getting_no_hits_.2F_incorrect_hits.3F > > If that doesn't help I suggest you post the smallest possible > self-contained example that shows the problem. > > > -- > Ian. > > > On Tue, Aug 6, 2013 at 9:55 PM, David Miranda > wrote: > > I experimented with the previous code, but no results are returned from > the > > index. Someone can give me an example? I have been for some time trying > to > > implement this functionality. > > > > Thanks. > > > > 2013/8/6 David Miranda > > > >> Do this with the BooleanQuery: > >> > >>> Query q1 = new QueryParser(Version.LUCENE_43, "label", analyzer > >>> ).parse(label); > >>> Query q2 = new QueryParser(Version.LUCENE_43, "abstract", analyzer > >>> ).parse(abstract); > >>> BooleanQuery bq = new BooleanQuery(); > >>> booleanQuery.add(q1,BooleanClause.Occur.MUST); > >>> booleanQuery.add(q2,BooleanClause.Occur.MUST); > >>> Hits hits = indexSearcher.search(booleanQuery); > >> > >> > >> This is right for what I want to do? > >> > >> Thanks. > >> > >> 2013/8/6 Ian Lea > >> > >> The standard way is to combine the searches by label and abstract into > >>> one query. If using QueryParser a simple example would look something > >>> like label:aaa abstract:bbb abstract:ccc. You can get the same > >>> effect, with more flexibility, by building a BooleanQuery in code. > >>> > >>> Also consider using a Filter e.g. QueryWrapperFilter on a query for > >>> label:aaa with the query generated by QueryParser or direct > >>> construction of a TermQuery. See also CachingWrapperFilter if the > >>> index isn't constantly changing. > >>> > >>> > >>> -- > >>> Ian. > >>> > >>> > >>> On Tue, Aug 6, 2013 at 3:19 PM, David Miranda < > david.b.mira...@gmail.com> > >>> wrote: > >>> > Hi, > >>> > > >>> > I have a Lucene index that has the fields label and abstract. > >>> > > >>> > I want to do is first do a search by label field, for this i use: > >>> > > >>> > TopScoreDocCollector collector = > TopScoreDocCollector.create(MAX_HITS, > >>> true > >>> >> ); > >>> >> searcher.search(q, collector); > >>> >> ScoreDoc[] hits = collector.topDocs().scoreDocs; > >>> > > >>> > > >>> > After the results of the first survey, I want to do a search in the > >>> > abstract field only in results obtained from the first survey. > >>> > > >>> > How i do this? > >>> > Thanks in advance. > >>> > > >>> > David > >>> > >>> - > >>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >>> For additional commands, e-mail: java-user-h...@lucene.apache.org > >>> > >>> > >> > >> > >> -- > >> Cumprimentos, > >> David Miranda > >> > > > > > > > > -- > > Cumprimentos, > > David Miranda > > - > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > -- Cumprimentos, David Miranda
Lucene Text Similarity
Is there any way to check the similarity of texts with Lucene? I have the DBpedia indexed and wanted to get the texts more similar between the abstract and DBpedia another text. If I do a search in the abstract field, with a particular text the result is not very satisfactory. Eg Abstract DBpedia: "SoundCloud is an online audio distribution platform Which Allows collaboration, promotion and distribution of audio recordings." My Text: "Private Track From DJ Sneak. Download the track now in the SoundCloud website." If I do a search as follows: Query q = new QueryParser (Version.LUCENE_43, "abstract", analyzer). Parse (mytext); Search field abstract the "mytext", not me no results are returned. What can I do to implement this feature? Thanks in advance, David - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
Re: Lucene Text Similarity
Thanks to all, I will take into account your suggestions. But I think that should have given the concrete use case. Therefore, taking into account my first example given, I have the email received by a user and that email I extract topics of interest to associate the terms of DBpedia (basically DBpedia documents). The problem here is, for example Apple, may be fruit or a company (Apple Computers). To accomplish this disambiguation, I wanted to use the abstract vs. text of the email to find out what the best term to choose. Thanks. 2013/9/4 Allison, Timothy B. : > I agree with Ivan and Koji. You also might want to look into MoreLikeThis, > which should take care of finding the highest tf*idf terms for you to use in > your query -- > http://lucene.apache.org/core/4_4_0/queries/org/apache/lucene/queries/mlt/MoreLikeThis.html > > Best, > >Tim > > > From: Ivan Krišto [ivan.kri...@gmail.com] > Sent: Wednesday, September 04, 2013 3:17 AM > To: java-user@lucene.apache.org > Subject: Re: Lucene Text Similarity > > On 09/03/2013 07:33 PM, David Miranda wrote: > > Is there any way to check the similarity of texts with Lucene? I have the > DBpedia indexed and wanted to get the texts more similar between the > abstract and DBpedia another text. If I do a search in the abstract field, > with a particular text the result is not very satisfactory. Eg Abstract > DBpedia: "SoundCloud is an online audio distribution platform Which Allows > collaboration, promotion and distribution of audio recordings." My Text: > "Private Track From DJ Sneak. Download the track now in the SoundCloud > website." > > > You are attacking extremly hard problem here -- searching short documents > with a long query. This creates a lots of problems, as setting document > frequency of a term to the same magnitude of its own frequency which > instantly kills some similarity measures. > > All you can do is to experiment a lot with different similarity measures > and preprocessing steps. > > Sim measures are simple, just try them all for each preprocessing > combination. > > Suggestions of preprocessing steps: > - remove all stop words > - remove all functional words (you can find list of them at wikipedia) > - boost all uppercase words or words containing at least one uppercase > letter (add boost of 3 or 4; maybe skip first word of a sentence) > - break search text into sentences then search index for each sentence > (combine results using borda count or something similar) > - do what Koji suggested > > Regards, > Ivan Krišto > ----- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > -- Cumprimentos, David Miranda - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
Lucene Concurrent Search
Hi,
I'm developing a web application, that contains a REST service in the
Tomcat, that receives several requests per second.
The REST requests do research in a Lucene index, to do this i use the
IndexSearch.
My questions are:
- There are concurrency problems in multiple research?
- What the best design pattern to do this?
public class IndexResearch(){
> private static int MAX_HITS = 500;
> private static String DIRECTORY = "indexdir";
> private IndexSearcher searcher;
> private StandardAnalyzer analyzer;
>
> public IndexResearch(){
> }
> public String doSearch(String text){
> analyzer = new StandardAnalyzer(Version.LUCENE_43);
> topic = QueryParser.escape(topic);
> Query q = new QueryParser(Version.LUCENE_43, "field", analyzer
> ).parse(text);
> File indexDirectory = new File(DIRECTORY);
> IndexReader reader;
> reader = DirectoryReader.open(FSDirectory.open(indexDirectory));
> searcher = new IndexSearcher(reader);
>
/*more code*/
>}
> }
Can I create, in the servlet, one object of this class per client request
(Is that the best design pattern)?
Thanks in advance.
Re: Lucene Concurrent Search
Where I can initialize the SearchManager variable to after use it in the
REST servlet to do research in the index?
2013/9/5 Ian Lea
> I think that blog post was bleeding edge and the API changed a bit
> subsequently.
>
> I use
>
> Directory dir = whatever;
> SearcherManager sm = new SearcherManager(dir, new SearcherFactory());
>
> to get default behaviour. The javadocs for SearcherFactory explain
> that you can write your own implementation if you want custom
> behaviour such as warming.
>
>
> --
> Ian.
>
>
> On Thu, Sep 5, 2013 at 3:53 PM, David Miranda
> wrote:
> > Hi,
> >
> > I'm trying to implement my code with SearchManager to make my app
> > thread-safe. I'm follow this post:
> >
> http://blog.mikemccandless.com/2011/09/lucenes-searchermanager-simplifies.html
> >
> > There is a class that implements "SearchWarmer". I can't find this class
> in
> > the Lucene library, what class is that?
> >
> > Thanks.
> >
> >
> > 2013/9/5 Aditya
> >
> >> Hi
> >>
> >> You want to use REST service for your search, then my advice would be to
> >> use Solr. As it has buitl-in functionality of REST API.
> >>
> >> If you want to use Lucene then below are my comments:
> >> 1. In do search function, you are creating reader object. If this call
> is
> >> invoked for every query then it would be very expensive. You need to
> create
> >> it once globally and re opon it, if the index is modified. Its better
> use
> >> SearchManager.
> >>
> >> Regards
> >> Aditya
> >> www.findbestopensource.com - Search from 1 Million open source
> projects.
> >>
> >>
> >>
> >> On Thu, Sep 5, 2013 at 6:46 AM, David Miranda <
> david.b.mira...@gmail.com
> >> >wrote:
> >>
> >> > Hi,
> >> >
> >> > I'm developing a web application, that contains a REST service in the
> >> > Tomcat, that receives several requests per second.
> >> > The REST requests do research in a Lucene index, to do this i use the
> >> > IndexSearch.
> >> >
> >> > My questions are:
> >> > - There are concurrency problems in multiple research?
> >> > - What the best design pattern to do this?
> >> >
> >> > public class IndexResearch(){
> >> > > private static int MAX_HITS = 500;
> >> > > private static String DIRECTORY = "indexdir";
> >> > > private IndexSearcher searcher;
> >> > > private StandardAnalyzer analyzer;
> >> > >
> >> >
> >> >
> >> >
> >> > > public IndexResearch(){
> >> > > }
> >> > > public String doSearch(String text){
> >> > > analyzer = new StandardAnalyzer(Version.LUCENE_43);
> >> > > topic = QueryParser.escape(topic);
> >> > > Query q = new QueryParser(Version.LUCENE_43, "field", analyzer
> >> > > ).parse(text);
> >> > > File indexDirectory = new File(DIRECTORY);
> >> > > IndexReader reader;
> >> > > reader =
> DirectoryReader.open(FSDirectory.open(indexDirectory));
> >> > > searcher = new IndexSearcher(reader);
> >> > >
> >> > /*more code*/
> >> >
> >> > >}
> >> > > }
> >> >
> >> >
> >> > Can I create, in the servlet, one object of this class per client
> request
> >> > (Is that the best design pattern)?
> >> >
> >> > Thanks in advance.
> >> >
> >>
> >
> >
> >
> > --
> > Cumprimentos,
> > David Miranda
>
> -
> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org
> For additional commands, e-mail: java-user-h...@lucene.apache.org
>
>
--
Cumprimentos,
David Miranda
Re: Lucene Concurrent Search
Hi,
I'm trying to implement my code with SearchManager to make my app
thread-safe. I'm follow this post:
http://blog.mikemccandless.com/2011/09/lucenes-searchermanager-simplifies.html
There is a class that implements "SearchWarmer". I can't find this class in
the Lucene library, what class is that?
Thanks.
2013/9/5 Aditya
> Hi
>
> You want to use REST service for your search, then my advice would be to
> use Solr. As it has buitl-in functionality of REST API.
>
> If you want to use Lucene then below are my comments:
> 1. In do search function, you are creating reader object. If this call is
> invoked for every query then it would be very expensive. You need to create
> it once globally and re opon it, if the index is modified. Its better use
> SearchManager.
>
> Regards
> Aditya
> www.findbestopensource.com - Search from 1 Million open source projects.
>
>
>
> On Thu, Sep 5, 2013 at 6:46 AM, David Miranda >wrote:
>
> > Hi,
> >
> > I'm developing a web application, that contains a REST service in the
> > Tomcat, that receives several requests per second.
> > The REST requests do research in a Lucene index, to do this i use the
> > IndexSearch.
> >
> > My questions are:
> > - There are concurrency problems in multiple research?
> > - What the best design pattern to do this?
> >
> > public class IndexResearch(){
> > > private static int MAX_HITS = 500;
> > > private static String DIRECTORY = "indexdir";
> > > private IndexSearcher searcher;
> > > private StandardAnalyzer analyzer;
> > >
> >
> >
> >
> > > public IndexResearch(){
> > > }
> > > public String doSearch(String text){
> > > analyzer = new StandardAnalyzer(Version.LUCENE_43);
> > > topic = QueryParser.escape(topic);
> > > Query q = new QueryParser(Version.LUCENE_43, "field", analyzer
> > > ).parse(text);
> > > File indexDirectory = new File(DIRECTORY);
> > > IndexReader reader;
> > > reader = DirectoryReader.open(FSDirectory.open(indexDirectory));
> > > searcher = new IndexSearcher(reader);
> > >
> > /*more code*/
> >
> > >}
> > > }
> >
> >
> > Can I create, in the servlet, one object of this class per client request
> > (Is that the best design pattern)?
> >
> > Thanks in advance.
> >
>
--
Cumprimentos,
David Miranda
Re: Lucene Concurrent Search
Did you have a practical example of the use of SearchManager (initialize,
use to do research)?
Thanks in advance.
2013/9/5 Stephen Green
> You can implement a ServletListener for your app and open the index there
> (in the contextInitialized method). You can then create the SearcherManager
> from the IndexReader/Searcher and store it in the ServletContext, where it
> can be fetched out by your REST servlets.
>
> This is a typical pattern that we use for lots of Web apps that use
> resources like Lucene.
>
>
> On Thu, Sep 5, 2013 at 12:05 PM, Ian Lea wrote:
>
> > I use a singleton class but there are other ways in tomcat. Can't
> > remember what - maybe application scope.
> >
> >
> > --
> > Ian.
> >
> >
> > On Thu, Sep 5, 2013 at 4:46 PM, David Miranda >
> > wrote:
> > > Where I can initialize the SearchManager variable to after use it in
> the
> > > REST servlet to do research in the index?
> > >
> > >
> > > 2013/9/5 Ian Lea
> > >
> > >> I think that blog post was bleeding edge and the API changed a bit
> > >> subsequently.
> > >>
> > >> I use
> > >>
> > >> Directory dir = whatever;
> > >> SearcherManager sm = new SearcherManager(dir, new SearcherFactory());
> > >>
> > >> to get default behaviour. The javadocs for SearcherFactory explain
> > >> that you can write your own implementation if you want custom
> > >> behaviour such as warming.
> > >>
> > >>
> > >> --
> > >> Ian.
> > >>
> > >>
> > >> On Thu, Sep 5, 2013 at 3:53 PM, David Miranda <
> > david.b.mira...@gmail.com>
> > >> wrote:
> > >> > Hi,
> > >> >
> > >> > I'm trying to implement my code with SearchManager to make my app
> > >> > thread-safe. I'm follow this post:
> > >> >
> > >>
> >
> http://blog.mikemccandless.com/2011/09/lucenes-searchermanager-simplifies.html
> > >> >
> > >> > There is a class that implements "SearchWarmer". I can't find this
> > class
> > >> in
> > >> > the Lucene library, what class is that?
> > >> >
> > >> > Thanks.
> > >> >
> > >> >
> > >> > 2013/9/5 Aditya
> > >> >
> > >> >> Hi
> > >> >>
> > >> >> You want to use REST service for your search, then my advice would
> > be to
> > >> >> use Solr. As it has buitl-in functionality of REST API.
> > >> >>
> > >> >> If you want to use Lucene then below are my comments:
> > >> >> 1. In do search function, you are creating reader object. If this
> > call
> > >> is
> > >> >> invoked for every query then it would be very expensive. You need
> to
> > >> create
> > >> >> it once globally and re opon it, if the index is modified. Its
> better
> > >> use
> > >> >> SearchManager.
> > >> >>
> > >> >> Regards
> > >> >> Aditya
> > >> >> www.findbestopensource.com - Search from 1 Million open source
> > >> projects.
> > >> >>
> > >> >>
> > >> >>
> > >> >> On Thu, Sep 5, 2013 at 6:46 AM, David Miranda <
> > >> david.b.mira...@gmail.com
> > >> >> >wrote:
> > >> >>
> > >> >> > Hi,
> > >> >> >
> > >> >> > I'm developing a web application, that contains a REST service in
> > the
> > >> >> > Tomcat, that receives several requests per second.
> > >> >> > The REST requests do research in a Lucene index, to do this i use
> > the
> > >> >> > IndexSearch.
> > >> >> >
> > >> >> > My questions are:
> > >> >> > - There are concurrency problems in multiple research?
> > >> >> > - What the best design pattern to do this?
> > >> >> >
> > >> >> > public class IndexResearch(){
> > >> >> > > private static int MAX_HITS = 500;
> > >> >> > > private static String DIRECTORY = "indexdir";
> > >>
Re: Lucene Concurrent Search
Why use Solr instead of Lucene for this kind of application?
2013/9/6 Stephen Green
> Something like:
>
> public class SearchListener implements ServletContextListener {
>
> @Override
> public void contextInitialized(ServletContextEvent sce) {
>
> ServletContext sc = sce.getServletContext();
> String indexDir = sc.getInitParameter("indexDir");
> SearcherManager searcherManager = new
> SearcherManager(FSDirectory.open(new File(indexDir)), null);
> sc.setAttribute("searcherManager", searcherManager);
>}
>
>public void contextDestroyed(ServletContextEvent sce) {
> ServletContext sc = sce.getServletContext();
>
> SearcherManager searcherManager = (SearcherManager)
> sc.getAttribute("searcherManager");
> if(searcherManager != null) {
> try {
> searcherManager.close();
> } catch(IOException ex) {
> logger.log(Level.SEVERE, String.format(
> "Error shutting down search engine"), ex);
> }
> }
> }
> }
>
> Usually does the trick. You need to put some parameters ("indexDir") into
> your web.xml and make sure that it knows that SearchListener is a
> ServletListener for your Web app.
>
> But, to re-iterate what someone else said: if you really just want RESTful
> search, you might be better off with Solr.
>
>
>
> On Thu, Sep 5, 2013 at 6:21 PM, David Miranda >wrote:
>
> > Did you have a practical example of the use of SearchManager (initialize,
> > use to do research)?
> >
> > Thanks in advance.
> >
> >
> > 2013/9/5 Stephen Green
> >
> > > You can implement a ServletListener for your app and open the index
> there
> > > (in the contextInitialized method). You can then create the
> > SearcherManager
> > > from the IndexReader/Searcher and store it in the ServletContext, where
> > it
> > > can be fetched out by your REST servlets.
> > >
> > > This is a typical pattern that we use for lots of Web apps that use
> > > resources like Lucene.
> > >
> > >
> > > On Thu, Sep 5, 2013 at 12:05 PM, Ian Lea wrote:
> > >
> > > > I use a singleton class but there are other ways in tomcat. Can't
> > > > remember what - maybe application scope.
> > > >
> > > >
> > > > --
> > > > Ian.
> > > >
> > > >
> > > > On Thu, Sep 5, 2013 at 4:46 PM, David Miranda <
> > david.b.mira...@gmail.com
> > > >
> > > > wrote:
> > > > > Where I can initialize the SearchManager variable to after use it
> in
> > > the
> > > > > REST servlet to do research in the index?
> > > > >
> > > > >
> > > > > 2013/9/5 Ian Lea
> > > > >
> > > > >> I think that blog post was bleeding edge and the API changed a bit
> > > > >> subsequently.
> > > > >>
> > > > >> I use
> > > > >>
> > > > >> Directory dir = whatever;
> > > > >> SearcherManager sm = new SearcherManager(dir, new
> > SearcherFactory());
> > > > >>
> > > > >> to get default behaviour. The javadocs for SearcherFactory
> explain
> > > > >> that you can write your own implementation if you want custom
> > > > >> behaviour such as warming.
> > > > >>
> > > > >>
> > > > >> --
> > > > >> Ian.
> > > > >>
> > > > >>
> > > > >> On Thu, Sep 5, 2013 at 3:53 PM, David Miranda <
> > > > david.b.mira...@gmail.com>
> > > > >> wrote:
> > > > >> > Hi,
> > > > >> >
> > > > >> > I'm trying to implement my code with SearchManager to make my
> app
> > > > >> > thread-safe. I'm follow this post:
> > > > >> >
> > > > >>
> > > >
> > >
> >
> http://blog.mikemccandless.com/2011/09/lucenes-searchermanager-simplifies.html
> > > > >> >
> > > > >> > There is a class that implements "SearchWarmer". I can't find
> this
> > > > class
> > > > >> in
> > > > >> > the Lucene library, what class is that?
> > > > >> >
>
Search in a specific ScoreDoc result
Hi, I want to do a kind of 'facet search', that initial research in a field of all documents in the Lucene index, and second search in other field of the documents returned to the first research. Currently I'm do the first research : Query q = new QueryParser(Version.LUCENE_43, "label", analyzer > ).parse(label); > TopScoreDocCollector collector = TopScoreDocCollector.create(MAX_HITS, > true); > searcher.search(q, collector); > ScoreDoc[] hits = collector.topDocs().scoreDocs; Now I want to the the next search only in ScoreDoc object and in other field? How can I do this? I searched and found something related to the lucene filters, but does not seem to do what I want. Thanks.
