There is a class NumericField in the same package.
-
Uwe Schindler
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> -Original Message-
> From: Saurabh Agarwal [mailto:srbh.g...@gmail.com]
> Sent: Friday, May 14, 2010 4:55 AM
> To: java-user@lucene
hi Ian
but when I see lucene-3.0.0/src/java/org/apache/lucene/document/Field.java
all the constructors either take a String ad value or a byte [] array as a
value. Can u guide me that how to use NumericField or am I missing
something?
Thanks
Saurabh Agarwal
On Fri, May 14, 2010 at 1:33 AM, Ian
Yes, I realize that storing document IDs persistently (for example) is a Bad
Idea. Partly I'm asking just to make sure I understand what's going on.
There is a use case, though. In some cases between when we do a search and
return some doc ids, and when we use those doc ids to load some documents
Why do you care? That is, what do you want to accomplish
that makes document ID renumbering relevant?
In general, it is unwise to rely on Lucene-assigned document
IDs. If you need an invariant document ID, assign it yourself.
If this is off base, could you supply your use-case?
Best
Erick
On Th
The FAQ clearly states that document IDs will not be re-assigned unless
something was deleted.
http://wiki.apache.org/lucene-java/LuceneFAQ#When_is_it_possible_for_document_IDs_to_change.3F
However, a number of other emails and posts I've read mention that
renumbering occurs when segments are merg
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You can store byte arrays, but you can't search on them. For integers
you can either pad them out with leading zeros or use NumericField. If
you use NumericField you'll need to use NumericRangeQuery as well.
--
Ian.
On Thu, May 13, 2010 at 8:44 PM, Saurabh Agarwal wrote:
> Hi,
> I am new to lu
Hi,
I am new to lucene. the constructors in Feild show that I can give the value
as byte[] I wanted to ask if I store a integer as a byte array the how it
will ve searched during search say file size!!!
because if I use text format the range search will be poor say fs of 10 12
20 30 50 100 101 102
What does vector.size() return? You don't appear to be doing anything
with the String term in "for ( String term : vector.getTerms() )" -
presumably you intend to.
--
Ian.
On Thu, May 13, 2010 at 1:16 PM, manjula wijewickrema
wrote:
> Dear Ian,
>
> Thanks a lot for your immediate reply. As you
Dear Ian,
Thanks a lot for your immediate reply. As you have mentioned I replaced the
lines as follows.
IndexReader ir=IndexReader.open(directory);
TermFreqVector vector=ir.getTermFreqVector(0,"fieldname");
Now the error has been vanished and thanks for it. But I can't still see the
results al
An alternative, if you want the date to influence rather than
determine the score, is to use document boosting, with the boost value
set small for old docs and high for new docs. You would probably need
to play to find suitable values. One problem would be that a doc that
is recent today will be
You need to replace this:
TermFreqVector vector = IndexReader.getTermFreqVector(0, "fieldname" );
with
IndexReader ir = whatever(...);
TermFreqVector vector = ir.getTermFreqVector(0, "fieldname" );
And you'll need to move it to after the writer.close() call if you
want it to see the doc you've
Dear All,
I am trying to get the term frequencies (through TermFreqVector) of a
document (using Lucene 2.9.1). In order to do that I have used the following
code. But there is a compile time error in the code and I can't figure it
out. Could somebody can guide me what's wrong with it.
Compile time
thanks
On Tue, May 11, 2010 at 3:31 PM, wrote:
> Sounds like your path is messed up and you're not using maven correctly.
> Start with the jar version that contains the class you require and use maven
> pom to correctly resolve dependencies
> Adam
> Sent using BlackBerry® from Orange
>
> -Or
> I am using lucene 2.9 and I can't understand why a succession of
> un-deprecated methods calls a deprecated method in this class.
> The series of calls is as follows:
>
> Searcher.search(Query, Collector)
> IndexSearcher.search(Weight, Filter, Collector)
> Scorer.score(Collector)
> DocIdSetItera
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