unable to search from a string containing numbers seperated by comma.

[prabin meitei <pr...@gmail.com>]

Hi,
  I am trying to search from an idlist (string containing comma seperated
numeric values)

eg:
QueryParser vParser = new QueryParser("idlist", new AlphanumAnalyzer()); //
analyzer using custom lettertokenizer which tokenize nuber also. class is
given below.
Query q = vParser.parse("55"); // example

now even if the field idlist contains say (44, 55, 66)
my search returns 0 hit. is there any alternative solution or is there some
problem with wat i am using.

Thanks in advance.

public class AlphanumericTokenizer extends LetterTokenizer {
  public AlphanumericTokenizer(Reader reader) {
    super(reader);
  }

  protected boolean isTokenChar(char c) {
    return super.isTokenChar(c) || Character.isDigit(c);
  }
}

Re: unable to search from a string containing numbers seperated by comma.

[Grant Ingersoll <gs...@apache.org>]

Give these tips a try to see if they help:
http://wiki.apache.org/lucene-java/ 
LuceneFAQ#head-3558e5121806fb4fce80fc022d889484a9248b71

Luke is your friend.

Cheers,
Grant

On Aug 30, 2007, at 6:06 AM, prabin meitei wrote:

> Hi,
>   I am trying to search from an idlist (string containing comma  
> seperated
> numeric values)
>
> eg:
> QueryParser vParser = new QueryParser("idlist", new AlphanumAnalyzer 
> ()); //
> analyzer using custom lettertokenizer which tokenize nuber also.  
> class is
> given below.
> Query q = vParser.parse("55"); // example
>
> now even if the field idlist contains say (44, 55, 66)
> my search returns 0 hit. is there any alternative solution or is  
> there some
> problem with wat i am using.
>
> Thanks in advance.
>
> public class AlphanumericTokenizer extends LetterTokenizer {
>   public AlphanumericTokenizer(Reader reader) {
>     super(reader);
>   }
>
>   protected boolean isTokenChar(char c) {
>     return super.isTokenChar(c) || Character.isDigit(c);
>   }
> }

--------------------------
Grant Ingersoll
http://lucene.grantingersoll.com

Lucene Helpful Hints:
http://wiki.apache.org/lucene-java/BasicsOfPerformance
http://wiki.apache.org/lucene-java/LuceneFAQ



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