Re: Whats the best way to filter based on a function of an indexed term or field value

I'd think about the filter option first, see below On 6/5/07, lucene user <[EMAIL PROTECTED]> wrote: We have a large and growing number of articles (< 60k but growing) and we want to divide articles from some sources into groups so that we can do queries against just members of one or two grou

Re: How can I search over all documents NOT in a certain subset?

Hi Hilton, Hilton Campbell wrote: > Hello all, > > In my application I want to perform a search over all the documents > that are NOT in a certain subset, and I'm not sure how I should do > it. > > Specifically, the application performs a search and the top N results > are shown to the user. The

Whats the best way to filter based on a function of an indexed term or field value

We have a large and growing number of articles (< 60k but growing) and we want to divide articles from some sources into groups so that we can do queries against just members of one or two groups and not find articles from publications that are outside these publication groups. We would like to b

How can I search over all documents NOT in a certain subset?

Hello all, In my application I want to perform a search over all the documents that are NOT in a certain subset, and I'm not sure how I should do it. Specifically, the application performs a search and the top N results are shown to the user. The user may then opt to see the next top N results.

Re: Maintain a backup index

Hi Divya, The Lucene library itself provides no support for "backup". You might be interested in the Solr project[1], which extends Lucene, and which automates index replication. From the Solr Introduction / Features page[2]: Replication * Efficient distribution of index parts that have

RE: Maintain a backup index

Hello, Any advice on this would be of great help. Thanks -Original Message- From: Rajendranath, Divya Sent: Tuesday, June 05, 2007 10:59 AM To: java-user@lucene.apache.org Subject: Maintain a backup index We want to maintain a backup of our production index directory. We are using Luce

Re: Retrieving field names from an index

Hi you can get them from searcher, if documents in your index are the same Enumeration fields = searcher.doc(0).fields(); On 6/5/07, Stadler Hans-Christian <[EMAIL PROTECTED]> wrote: Hi, how would I efficently retrieve the names of all possible fields present in an index? One way would be

Re: Retrieving field names from an index

Would IndexReader.getFieldNames work? Erick On 6/5/07, Stadler Hans-Christian <[EMAIL PROTECTED]> wrote: Hi, how would I efficently retrieve the names of all possible fields present in an index? One way would be to iterate over all terms and extract the field names, but it doesn't look like

Retrieving field names from an index

Hi, how would I efficently retrieve the names of all possible fields present in an index? One way would be to iterate over all terms and extract the field names, but it doesn't look like this method is efficient for large indices. Murphy for president! HC -

Re: Should I synchronize searching to cache the IndexSearcher?

On 6/5/07, Michael Böckling <[EMAIL PROTECTED]> wrote: In the docs it says that I should cache the IndexSearcher for best performance, and not build a new one for each query. The problem is that when I want to switch to a new index, I would have to synchronize my search() method while my update

Should I synchronize searching to cache the IndexSearcher?

Hi folks! In the docs it says that I should cache the IndexSearcher for best performance, and not build a new one for each query. The problem is that when I want to switch to a new index, I would have to synchronize my search() method while my update check runs (which is also synchronized), so se