See TopDocs, HitCollector, etc. You'll have to dig through the documentation and try a few experiments to make sense of it all, one sentence explanations aren't much help.
But think of Hits as a convenience class for getting the best-scoring 100 documents and use the other classes if you want to get *all* the documents. Don't go to the other classes unless you start getting performance problems with Hits. The main take-away from Hits is that it'll re-execute the query every 100 documents you read from it or so, so the only time you care is when you find yourself assembling large numbers of documents... Erick On 2/22/07, Kainth, Sachin <[EMAIL PROTECTED]> wrote:
What can you use in place of Hits and how do they differ? -----Original Message----- From: Chris Hostetter [mailto:[EMAIL PROTECTED] Sent: 21 February 2007 22:43 To: java-user@lucene.apache.org Subject: Re: Returning only a small set of results : A question about efficiency and the internal workings of the Hits class. : When we make a call to IndexSearcher's search method thus: : : Hits hits = searcher.Search(query); : : Do we actually, physically get back all the results of the query even if : there are 20 million results or for efficiency do we physically get back the Hits class fetches back the first N result documents (where N is 100 i think) and then it fetches more and more as needed if you ask for more. generally speaking Hits works fine for simple pagination applications, but if you are intented on walking deep down the list of ordred results, i would avoid it. -Hoss --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] This message has been scanned for viruses by MailControl - (see http://bluepages.wsatkins.co.uk/?6875772) This email and any attached files are confidential and copyright protected. If you are not the addressee, any dissemination of this communication is strictly prohibited. Unless otherwise expressly agreed in writing, nothing stated in this communication shall be legally binding. The ultimate parent company of the Atkins Group is WS Atkins plc. Registered in England No. 1885586. Registered Office Woodcote Grove, Ashley Road, Epsom, Surrey KT18 5BW. Consider the environment. Please don't print this e-mail unless you really need to. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
