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From "Uwe Schindler" <...@thetaphi.de>
Subject RE: Need help regarding implementation of autosuggest using jquery
Date Thu, 26 Nov 2009 09:49:11 GMT
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: uwe@thetaphi.de


> -----Original Message-----
> From: DHIVYA M [mailto:dhivyakrishnan87@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 <uwe@thetaphi.de> wrote:
> 
> 
> From: Uwe Schindler <uwe@thetaphi.de>
> 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: uwe@thetaphi.de
> 
> 
> > -----Original Message-----
> > From: DHIVYA M [mailto:dhivyakrishnan87@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/
> 
> 
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> 
> 
> 
> 
>       The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
> http://in.yahoo.com/


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