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From "wuqi" <chee...@gmail.com>
Subject Re: Problems about using Lucene to generate tag cloud..
Date Sun, 06 Apr 2008 14:06:46 GMT
Very useful.. Thank you!

----- Original Message ----- 
From: "John Wang" <john.wang@gmail.com>
To: <java-user@lucene.apache.org>
Sent: Saturday, April 05, 2008 8:35 AM
Subject: Re: Problems about using Lucene to generate tag cloud..


check out http://www.browseengine.com
tag cloud impl on lucene is avail.

-John

On Wed, Apr 2, 2008 at 4:12 PM, Daniel Noll <daniel@nuix.com> wrote:

> On Thursday 03 April 2008 08:08:09 Dominique BĂ©jean wrote:
> > Hum, it looks like it is not true.
> > Use a do-while loop make the first terms.term().field() generate a null
> > pointer exception.
>
> Depends which terms method you use.
>
>    TermEnum terms = reader.terms();
>    System.out.println(terms.term());   => null
>
>    terms = reader.terms(new Term("id", ""));
>    System.out.println(terms.term());   => id:0
>
> The first method makes a normal while loop work but it also makes the
> assumption that there is only one field in the index, which may not be the
> case forever even if it's the case initially.
>
> Daniel
>
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