We found that a fast way to do this simply by running a query for each
category and getting the maxDocs. There would be one query for category
getting a single hit.
Dennis Kubes
Erick Erickson wrote:
You might want to search the mail archive for "facets" or "faceted search"
(no quotes), as I *think* this might be relevant.
Best
Erick
On 7/26/07, Ramana Jelda <[EMAIL PROTECTED]> wrote:
Hi ,
Of course this statement is very expensive.
-->document.get("CAMPCATID")==null?"":document.get("CAMPCATID");
Use StringIndex/FieldCache/something similar to implement category
counting.
:)
Jelda
-----Original Message-----
From: Bhavin Pandya [mailto:[EMAIL PROTECTED]
Sent: Thursday, July 26, 2007 5:20 PM
To: java-user@lucene.apache.org
Subject: How to show category count with results?
Hi,
I want to show each category name and its count with results.
I achieved this using DocCollector but its very slow when no
of results in lacs... As fetching of documents from reader in
collect method is expensive...
public void collect(int doc, float score) {
Document document = mreader.document(doc);
strcatid =
document.get("CAMPCATID")==null?"":document.get("CAMPCATID");
if (catcountmap.containsKey(strcatid))
{
// catid already exists in hashmap... increase count by one
value = ((Integer)catcountmap.get(strcatid)).intValue();
value = value + 1;
catcountmap.put(strcatid,new Integer(value));
}
else
catcountmap.put(strcatid,new Integer(1));
}
is there any other better way to achieve this ????
Thanks.
Bhavin pandya
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