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Need help regarding implementation of autosuggest using jquery

  

 
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dhivyakrishnan87 at yahoo

Nov 24, 2009, 11:05 PM

Post #1 of 11 (1253 views)
Permalink
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 purposeand 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/


uwe at thetaphi

Nov 25, 2009, 1:54 AM

Post #2 of 11 (1194 views)
Permalink
RE: Need help regarding implementation of autosuggest using jquery [In reply to]
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 [at] thetaphi


> -----Original Message-----
> From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> 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 purposeand 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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dhivyakrishnan87 at yahoo

Nov 25, 2009, 11:37 PM

Post #3 of 11 (1185 views)
Permalink
RE: Need help regarding implementation of autosuggest using jquery [In reply to]
Thanks for ur suggestion. By the way will u please give me some more details about TermEnum and its usage. Because am a beginner in using lucene and i want some theoritical explanations for TermEnum. So kindly provide me a website or any tutorial's link that provides ample information regarding TermEnum

--- On Wed, 25/11/09, Uwe Schindler <uwe [at] thetaphi> wrote:


From: Uwe Schindler <uwe [at] thetaphi>
Subject: RE: Need help regarding implementation of autosuggest using jquery
To: java-user [at] lucene
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 [at] thetaphi


> -----Original Message-----
> From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> 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 purposeand 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-unsubscribe [at] lucene
For additional commands, e-mail: java-user-help [at] lucene




The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo.com/


dhivyakrishnan87 at yahoo

Nov 26, 2009, 1:39 AM

Post #4 of 11 (1186 views)
Permalink
RE: Need help regarding implementation of autosuggest using jquery [In reply to]
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 [at] thetaphi> wrote:


From: Uwe Schindler <uwe [at] thetaphi>
Subject: RE: Need help regarding implementation of autosuggest using jquery
To: java-user [at] lucene
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 [at] thetaphi


> -----Original Message-----
> From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> 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 purposeand 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-unsubscribe [at] lucene
For additional commands, e-mail: java-user-help [at] lucene




The INTERNET now has a personality. YOURS! See your Yahoo! Homepage. http://in.yahoo.com/


anshumg at gmail

Nov 26, 2009, 1:45 AM

Post #5 of 11 (1177 views)
Permalink
Re: Need help regarding implementation of autosuggest using jquery [In reply to]
Just add a check in the while statement to exit as soon as the pattern of
the term changes.
You could check if the term does not start with your input and exit from the
while loop there.
It would exit wherever the term start changes from what you want.

--
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 3:09 PM, DHIVYA M <dhivyakrishnan87 [at] yahoo>wrote:

> 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 [at] thetaphi> wrote:
>
>
> From: Uwe Schindler <uwe [at] thetaphi>
> Subject: RE: Need help regarding implementation of autosuggest using jquery
> To: java-user [at] lucene
> 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 [at] thetaphi
>
>
> > -----Original Message-----
> > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> > 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-unsubscribe [at] lucene
> For additional commands, e-mail: java-user-help [at] lucene
>
>
>
>
> The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
> http://in.yahoo.com/
>


uwe at thetaphi

Nov 26, 2009, 1:49 AM

Post #6 of 11 (1176 views)
Permalink
RE: Need help regarding implementation of autosuggest using jquery [In reply to]
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 [at] thetaphi


> -----Original Message-----
> From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> Sent: Thursday, November 26, 2009 10:39 AM
> To: java-user [at] lucene
> 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 [at] thetaphi> wrote:
>
>
> From: Uwe Schindler <uwe [at] thetaphi>
> Subject: RE: Need help regarding implementation of autosuggest using
> jquery
> To: java-user [at] lucene
> 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 [at] thetaphi
>
>
> > -----Original Message-----
> > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> > 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 purposeand 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-unsubscribe [at] lucene
> For additional commands, e-mail: java-user-help [at] lucene
>
>
>
>
> The INTERNET now has a personality. YOURS! See your Yahoo! Homepage.
> http://in.yahoo.com/


---------------------------------------------------------------------
To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
For additional commands, e-mail: java-user-help [at] lucene


anshumg at gmail

Nov 26, 2009, 2:59 AM

Post #7 of 11 (1176 views)
Permalink
Re: Need help regarding implementation of autosuggest using jquery [In reply to]
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 <uwe [at] thetaphi> 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: uwe [at] thetaphi
>
>
> > -----Original Message-----
> > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> > Sent: Thursday, November 26, 2009 10:39 AM
> > To: java-user [at] lucene
> > 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 [at] thetaphi> wrote:
> >
> >
> > From: Uwe Schindler <uwe [at] thetaphi>
> > Subject: RE: Need help regarding implementation of autosuggest using
> > jquery
> > To: java-user [at] lucene
> > 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 [at] thetaphi
> >
> >
> > > -----Original Message-----
> > > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> > > 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-unsubscribe [at] lucene
> > For additional commands, e-mail: java-user-help [at] lucene
> >
> >
> >
> >
> > The INTERNET now has a personality. YOURS! See your Yahoo!
> Homepage.
> > http://in.yahoo.com/
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
> For additional commands, e-mail: java-user-help [at] lucene
>
>


tangfulin at gmail

Nov 26, 2009, 6:08 PM

Post #8 of 11 (1167 views)
Permalink
Re: Need help regarding implementation of autosuggest using jquery [In reply to]
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 <anshumg [at] gmail>:
> 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 <uwe [at] thetaphi> 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: uwe [at] thetaphi
>>
>>
>> > -----Original Message-----
>> > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
>> > Sent: Thursday, November 26, 2009 10:39 AM
>> > To: java-user [at] lucene
>> > 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 [at] thetaphi> wrote:
>> >
>> >
>> > From: Uwe Schindler <uwe [at] thetaphi>
>> > Subject: RE: Need help regarding implementation of autosuggest using
>> > jquery
>> > To: java-user [at] lucene
>> > 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 [at] thetaphi
>> >
>> >
>> > > -----Original Message-----
>> > > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
>> > > 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-unsubscribe [at] lucene
>> > For additional commands, e-mail: java-user-help [at] lucene
>> >
>> >
>> >
>> >
>> >       The INTERNET now has a personality. YOURS! See your Yahoo!
>> Homepage.
>> > http://in.yahoo.com/
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
>> For additional commands, e-mail: java-user-help [at] lucene
>>
>>
>



--
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

---------------------------------------------------------------------
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tangfulin at gmail

Nov 26, 2009, 6:10 PM

Post #9 of 11 (1170 views)
Permalink
Re: Need help regarding implementation of autosuggest using jquery [In reply to]
By the way , we search Chinese words, so Trie tree looks not perfect
for us either


2009/11/27 fulin tang <tangfulin [at] gmail>:
> 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 <anshumg [at] gmail>:
>> 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 <uwe [at] thetaphi> 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: uwe [at] thetaphi
>>>
>>>
>>> > -----Original Message-----
>>> > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
>>> > Sent: Thursday, November 26, 2009 10:39 AM
>>> > To: java-user [at] lucene
>>> > 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 [at] thetaphi> wrote:
>>> >
>>> >
>>> > From: Uwe Schindler <uwe [at] thetaphi>
>>> > Subject: RE: Need help regarding implementation of autosuggest using
>>> > jquery
>>> > To: java-user [at] lucene
>>> > 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 [at] thetaphi
>>> >
>>> >
>>> > > -----Original Message-----
>>> > > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
>>> > > 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-unsubscribe [at] lucene
>>> > For additional commands, e-mail: java-user-help [at] lucene
>>> >
>>> >
>>> >
>>> >
>>> >       The INTERNET now has a personality. YOURS! See your Yahoo!
>>> Homepage.
>>> > http://in.yahoo.com/
>>>
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
>>> For additional commands, e-mail: java-user-help [at] lucene
>>>
>>>
>>
>
>
>
> --
> 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

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otis_gospodnetic at yahoo

Dec 1, 2009, 2:09 PM

Post #10 of 11 (1077 views)
Permalink
Re: Need help regarding implementation of autosuggest using jquery [In reply to]
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 <tangfulin [at] gmail>
> To: java-user [at] lucene
> 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: uwe [at] thetaphi
> >>>
> >>>
> >>> > -----Original Message-----
> >>> > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> >>> > Sent: Thursday, November 26, 2009 10:39 AM
> >>> > To: java-user [at] lucene
> >>> > 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 [at] lucene
> >>> > 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 [at] thetaphi
> >>> >
> >>> >
> >>> > > -----Original Message-----
> >>> > > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> >>> > > 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-unsubscribe [at] lucene
> >>> > For additional commands, e-mail: java-user-help [at] lucene
> >>> >
> >>> >
> >>> >
> >>> >
> >>> > The INTERNET now has a personality. YOURS! See your Yahoo!
> >>> Homepage.
> >>> > http://in.yahoo.com/
> >>>
> >>>
> >>> ---------------------------------------------------------------------
> >>> To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
> >>> For additional commands, e-mail: java-user-help [at] lucene
> >>>
> >>>
> >>
> >
> >
> >
> > --
> > 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-unsubscribe [at] lucene
> For additional commands, e-mail: java-user-help [at] lucene


---------------------------------------------------------------------
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ww.wang.cs at gmail

Dec 1, 2009, 2:23 PM

Post #11 of 11 (1075 views)
Permalink
Re: Need help regarding implementation of autosuggest using jquery [In reply to]
Hi, dudes,

I finished an search suggestion module a few months ago.

The framework is as below:
1. Log all your search keywords or retrieve all your segmented terms which
can be searched
2. Index all the keywords and or terms with N-Gram tech
3. Search this index with a same analyzer based on user input

You can find a example in lucene contribute materials: SpellCheck or you can
find the source code of our project here:
http://code.google.com/p/askrosa/source/browse/trunk/RosaCrawler/src/autocomplete/AutoCompleter.java
This code is not really up to date, the parameters in the EdgeNGramTokenFilter
should be 2 and 5 or some values not too small and not too large. I
recommend you read some thing about N-Gram(don't worry, it's very easy to
understand)

You can do any modifying to the code and redeploy.

Hope you will enjoy the search tools you are building.

On Wed, Dec 2, 2009 at 6:09 AM, Otis Gospodnetic <otis_gospodnetic [at] yahoo
> wrote:

> 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 <tangfulin [at] gmail>
> > To: java-user [at] lucene
> > 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: uwe [at] thetaphi
> > >>>
> > >>>
> > >>> > -----Original Message-----
> > >>> > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> > >>> > Sent: Thursday, November 26, 2009 10:39 AM
> > >>> > To: java-user [at] lucene
> > >>> > 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 [at] lucene
> > >>> > 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 [at] thetaphi
> > >>> >
> > >>> >
> > >>> > > -----Original Message-----
> > >>> > > From: DHIVYA M [mailto:dhivyakrishnan87 [at] yahoo]
> > >>> > > 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-unsubscribe [at] lucene
> > >>> > For additional commands, e-mail: java-user-help [at] lucene
> > >>> >
> > >>> >
> > >>> >
> > >>> >
> > >>> > The INTERNET now has a personality. YOURS! See your Yahoo!
> > >>> Homepage.
> > >>> > http://in.yahoo.com/
> > >>>
> > >>>
> > >>> ---------------------------------------------------------------------
> > >>> To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
> > >>> For additional commands, e-mail: java-user-help [at] lucene
> > >>>
> > >>>
> > >>
> > >
> > >
> > >
> > > --
> > > εĿʼڳеıԵ
> > > ĵԶִڽŲ˲
> > > ҵ˼įԶ
> > >
> >
> >
> >
> > --
> > εĿʼڳеıԵ
> > ĵԶִڽŲ˲
> > ҵ˼įԶ
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
> > For additional commands, e-mail: java-user-help [at] lucene
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: java-user-unsubscribe [at] lucene
> For additional commands, e-mail: java-user-help [at] lucene
>
>


--
Weiwei Wang
Alex Wang
ΡΡ
Room 403, Mengmin Wei Building
Computer Science Department
Gulou Campus of Nanjing University
Nanjing, P.R.China, 210093

Homepage: http://cs.nju.edu.cn/rl/weiweiwang

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