Hi, Have a look at http://www.sematext.com/products/autocomplete/index.html
It handles Chinese and large volumes of data. Otis -- Sematext -- http://sematext.com/ -- Solr - Lucene - Nutch ----- Original Message ---- > From: fulin tang <tangfu...@gmail.com> > To: java-user@lucene.apache.org > Sent: Thu, November 26, 2009 9:10:41 PM > Subject: Re: Need help regarding implementation of autosuggest using jquery > > By the way , we search Chinese words, so Trie tree looks not perfect > for us either > > > 2009/11/27 fulin tang : > > We have the same needs in our music search, and we found this is not a > > good approach for performance reason . > > > > Did any one have experience of implement the autosuggestion in a heavy > > product environment ? > > Any suggestions ? > > > > > > 2009/11/26 Anshum : > >> Try this, > >> Change the code as required: > >> --------- > >> > >> > >> import java.io.IOException; > >> > >> import org.apache.lucene.index.CorruptIndexException; > >> import org.apache.lucene.index.IndexReader; > >> import org.apache.lucene.index.Term; > >> import org.apache.lucene.index.TermEnum; > >> > >> /** > >> * @author anshum > >> * > >> */ > >> public class GetTermsToSuggest { > >> > >> private static void getTerms(String inputText) { > >> IndexReader reader = null; > >> try { > >> reader = IndexReader.open("/home/anshum/index/testindex"); > >> String field = "fieldname"; > >> field = field.intern(); > >> TermEnum tenum = reader.terms(new Term("fieldname", "")); > >> Boolean hasRun = false; > >> try { > >> do { > >> final Term term = tenum.term(); > >> if (term == null || term.field() != field) > >> break; > >> final String termText = term.text(); > >> if (termText.startsWith(inputText)) { > >> System.out.println(termText); > >> hasRun = true; > >> } else if (hasRun == true) > >> break; > >> } while (tenum.next()); > >> tenum.close(); > >> } catch (IOException e) { > >> e.printStackTrace(); > >> } > >> } catch (CorruptIndexException e2) { > >> e2.printStackTrace(); > >> } catch (IOException e2) { > >> e2.printStackTrace(); > >> } > >> > >> } > >> > >> /** > >> * @param args > >> */ > >> public static void main(String[] args) { > >> GetTermsToSuggest.getTerms(args[0]); > >> } > >> } > >> > >> > >> -- > >> Anshum Gupta > >> Naukri Labs! > >> http://ai-cafe.blogspot.com > >> > >> The facts expressed here belong to everybody, the opinions to me. The > >> distinction is yours to draw............ > >> > >> > >> On Thu, Nov 26, 2009 at 3:19 PM, Uwe Schindler wrote: > >> > >>> You can fix this if you just create the initial term not with "", instead > >>> with your prefix: > >>> TermEnum tenum = reader.terms(new Term(field,prefix)); > >>> > >>> And inside the while loop just break out, > >>> > >>> if (!termText.startsWith(prefix)) break; > >>> > >>> ----- > >>> Uwe Schindler > >>> H.-H.-Meier-Allee 63, D-28213 Bremen > >>> http://www.thetaphi.de > >>> eMail: u...@thetaphi.de > >>> > >>> > >>> > -----Original Message----- > >>> > From: DHIVYA M [mailto:dhivyakrishna...@yahoo.com] > >>> > Sent: Thursday, November 26, 2009 10:39 AM > >>> > To: java-user@lucene.apache.org > >>> > Subject: RE: Need help regarding implementation of autosuggest using > >>> > jquery > >>> > > >>> > Sir, > >>> > > >>> > Your suggestion was fantastic. > >>> > > >>> > I tried the below mentioned code but it is showing me the entire result > >>> of > >>> > indexed words starting from the letter that i give as input. > >>> > Ex: > >>> > if i give "fo" > >>> > am getting all the indexes from the word starting with fo upto words > >>> > starting with z. > >>> > i.e. it starts displaying from the word matching the search word and > >>> > ends > >>> > up with the last word available in the index file. > >>> > > >>> > Kindly suggest me a solution for this problem > >>> > > >>> > Thanks in advance, > >>> > Dhivya > >>> > > >>> > --- On Wed, 25/11/09, Uwe Schindler wrote: > >>> > > >>> > > >>> > From: Uwe Schindler > >>> > Subject: RE: Need help regarding implementation of autosuggest using > >>> > jquery > >>> > To: java-user@lucene.apache.org > >>> > Date: Wednesday, 25 November, 2009, 9:54 AM > >>> > > >>> > > >>> > Hi Dhivya, > >>> > > >>> > you can iterate all terms in the index using a TermEnum, that can be > >>> > retrieved using IndexReader.terms(Term startTerm). > >>> > > >>> > If you are interested in all terms from a specific field, position the > >>> > TermEnum on the first possible term in this field ("") and iterate until > >>> > the > >>> > field name changes. As terms in the TermEnum are first ordered by field > >>> > name > >>> > then by term text (in UTF-16 order), the loop would look like this: > >>> > > >>> > IndexReader reader = ... > >>> > String field = .... > >>> > Field = field.intern(); // important for the while loop > >>> > TermEnum tenum = reader.terms(new Term(field,"")); > >>> > try { > >>> > do { > >>> > final Term term = tenum.term(); > >>> > if (term==null || term.field()!=field) break; > >>> > final String termText = term.text(); > >>> > // do something with the termText > >>> > } while (tenum.next()); > >>> > } finally { > >>> > tenum.close(); > >>> > } > >>> > > >>> > > >>> > ----- > >>> > Uwe Schindler > >>> > H.-H.-Meier-Allee 63, D-28213 Bremen > >>> > http://www.thetaphi.de > >>> > eMail: u...@thetaphi.de > >>> > > >>> > > >>> > > -----Original Message----- > >>> > > From: DHIVYA M [mailto:dhivyakrishna...@yahoo.com] > >>> > > Sent: Wednesday, November 25, 2009 8:06 AM > >>> > > To: java user > >>> > > Subject: Need help regarding implementation of autosuggest using > >>> > > jquery > >>> > > > >>> > > Hi all, > >>> > > > >>> > > Am using lucene 2.3.2 as a search engine in my e-paper site. So that i > >>> > > want the user to search the news. I achieved that objective but now am > >>> > > trying to implement autosuggest so that user can pick a choice from > >>> > > the > >>> > > drop down and no need of typing in the entire sentence or so. > >>> > > > >>> > > I have download Jquery for this purpose and am trying to implement it. > >>> > > The collections of data to refer for the suggestion is given in an > >>> > > arraylist or jus with in a string. > >>> > > > >>> > > But for my application, i need to populate the suggestions with the > >>> > > indexed words available in the index file created during indexing > >>> > > operation. > >>> > > > >>> > > Can anyone give an idea to read the contents from the index file and > >>> > make > >>> > > it available as suggestions? or anyother idea to achieve this > >>> objective? > >>> > > > >>> > > Thanks in advance, > >>> > > Dhivya > >>> > > > >>> > > > >>> > > The INTERNET now has a personality. YOURS! See your Yahoo! > >>> > Homepage. > >>> > > http://in.yahoo.com/ > >>> > > >>> > > >>> > --------------------------------------------------------------------- > >>> > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >>> > For additional commands, e-mail: java-user-h...@lucene.apache.org > >>> > > >>> > > >>> > > >>> > > >>> > The INTERNET now has a personality. YOURS! See your Yahoo! > >>> Homepage. > >>> > http://in.yahoo.com/ > >>> > >>> > >>> --------------------------------------------------------------------- > >>> To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > >>> For additional commands, e-mail: java-user-h...@lucene.apache.org > >>> > >>> > >> > > > > > > > > -- > > 梦的开始挣扎于城市的边缘 > > 心的远方执着在脚步的瞬间 > > 我的宿命埋藏了寂寞的永远 > > > > > > -- > 梦的开始挣扎于城市的边缘 > 心的远方执着在脚步的瞬间 > 我的宿命埋藏了寂寞的永远 > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
