Read
*org.apache.lucene.index.IndexReader *And
*org.apache.lucene.search.IndexSearcher
There are description available in these docs.
*
On 10/17/06, EDMOND KEMOKAI <[EMAIL PROTECTED]> wrote:
Can someone tell me how read an index into memory, or how to open an
existing index for reading?
Can someone tell me how read an index into memory, or how to open an
existing index for reading?
--
"talk trash and carry a small stick."
PAUL KRUGMAN (NYT)
Hi Guys
How do you reload an index. I have a webapp which might need to be
redeployed but whenever i test FSDirectory.list(), nothing is returned. The
segments and .cfs file is in the directory but those aren't recognized
either.
--
"talk trash and carry a small stick."
PAUL KRUGMAN (NYT)
Well, depending on what you mean by wildcard, a prefixfilter isn't
necessarily what you want. If wildcard means abc*, then prefixfilter is
right. If it means ab*cd?fg, a prefix filter isn't useful unless you want to
do some fancy indexing.
Think about writing your own filter. Wrap it in a Constan
hi Vasu, how about using ChainedFilter(yourPrefixFilters[],
ChainedFilter.AND)?
vasu shah <[EMAIL PROTECTED]> wrote on 16/10/2006 17:50:27:
> Hi,
>
> I have have multiple fields that I need to search on. All these
> fields need to support wildcard search. I am ANDing these search
> fields using Bo
Hi,
I have have multiple fields that I need to search on. All these fields need to
support wildcard search. I am ANDing these search fields using BooleanQuery.
There is no need for score in my search.
How do I implement these. I have seen PrefixFilter and it sounds promising. But
then how do I
Otis Gospodnetic <[EMAIL PROTECTED]> wrote on 16/10/2006 14:32:13:
> Hi Ryan,
>
> StandardAnalyzer should already be smart about keeping email
> addresses as a single token:
>
> // email addresses
> | (("."|"-"|"_") )* "@"
> (("."|"-") )+ >
>
> (this is from StandardAnalyzer.jj)
>
> As for cha
Sorry, I wasn't really concerned with email addresses - I was just
using that as an example. How would I tell the StandardAnalyzer that
I want a certain phrase to be tokenized as a token? Surround by
quotes or ..? Also, how would you recommend manipulating the Reader
object? You said s
It is not THAT hard to write a custom analyzer, that is what I did. I
found that there is a bug in the setup, however, in that there are two
incompatible definitions of Token. The generated file
Tokenizer.java refers to the wrong definition of Token so I ahve to
patch it before it will compil
Hi Ryan,
StandardAnalyzer should already be smart about keeping email addresses as a
single token:
// email addresses
| (("."|"-"|"_") )* "@" (("."|"-")
)+ >
(this is from StandardAnalyzer.jj)
As for changing the text you feed to Lucene, that's all up to you. Changing
the String seems l
I have a few questions regarding writing a custom analyzer.
My situation is that I would like to use the StandardAnalyzer but
with some data-specific rules. I was wondering if there was a way of
telling the StandardAnalyzer to treat a string of text, that would
normally be tokenized into m
turns out i needed a seek method.
i ended up modeling it after the RAM Directory.
i turned the RAMFile into an @Entity.
the directory accesses the EntityManager.
and i am using JBossCache.
preliminary testing shows comparable response times.
RangeQueries expand to a boolean query containing all terms in the range,
so it doesn't matter if you search on a course grain range, if you store
the dates with high granulatiry -- the number of terms will be high.
this wiki page discusses some of the merrits of using multiple date fields
with v
Hi - Can someone explain the reason why I'm getting the TooManyClauses
exception? I have a general understanding of the issue based on my
reading, but I don't understand the mechanics of the it. Specifically
how is my query being expanded to cause this problem? How am I
exceeding the default 102
Hi Bill,
Bill Taylor wrote:
> On Oct 16, 2006, at 5:44 AM, Christoph Pächter wrote:
>> I know that I can index pdf-files (using a third-party library).
>
> Could you please tell me where to find this library?
There are several PDF extraction packages listed here (look under the
"Lucene Document
Hi Jong,
Jong Kim wrote:
> I'm looking for a stemmer that is capable of returning all morphological
> variants of a query term (to be used for high-recall search). For example,
> given a query term of 'cares', I would like to be able to generate 'cares',
> 'care', 'cared', and 'caring'.
To ac
Supriya Kumar Shyamal wrote:
If I am not mistaken the process of locking the Index by different
objects like IndexReader or Indexwriter, theoratically only one
Thread can access the index at a time.
Actually, only one writer can write to the index at once. Multiple
readers can read from the
On Oct 16, 2006, at 5:44 AM, Christoph Pächter wrote:
Hi,
I know that I can index pdf-files (using a third-party library).
Could you please tell me where to find this library?
Is it possible to search the index for a phrase, getting not only the
document, but also the page number in the (pd
Michael McCandless wrote:
Supriya Kumar Shyamal wrote:
If I am not mistaken the process of locking the Index by different
objects like IndexReader or Indexwriter, theoratically only one
Thread can access the index at a time.
Actually, only one writer can write to the index at once. Multiple
Given that you want to score new documents higher (implicitly sorting them),
I wonder whether Solr's FunctionQuery (specifically ReciprocalFloatFunction
-
http://incubator.apache.org/solr/docs/api/org/apache/solr/search/function/Re
ciprocalFloatFunction.html) may also be helpful. It gives newer doc
Supriya Kumar Shyamal wrote:
If I am not mistaken the process of locking the Index by different
objects like IndexReader or Indexwriter, theoratically only one Thread
can access the index at a time.
Actually, only one writer can write to the index at once. Multiple
readers can read from the
First af all, what is your machine architecture ??? Do you have a super pc
???
I'm running this on a dual xeon hyperthreading 2,4 Ghz, 1 Gb RAM, HD SATA.
I Can not get the times results you get. I think that the problem may be in
the structure of my index, for example I use a special analyzer fo
Well, anything's possible .
There's nothing magic about Lucene and its interaction with, say, a PDF
document. What you put into the index is all you can get out. So..
You could index the PDF document by pages. That is, each page is a lucene
"document", related by some ID (NOT the lucene doc_id,
Hello All,
If I am not mistaken the process of locking the Index by different
objects like IndexReader or Indexwriter, theoratically only one Thread
can access the index at a time.
When we do search on the index it creates a commit lock so the other
thread does not modify the index, so other
Hi,
I know that I can index pdf-files (using a third-party library).
Is it possible to search the index for a phrase, getting not only the
document, but also the page number in the (pdf-)document?
Or is it even possible to get a bookmark, leading to this page?
I am thankful for any information y
On Oct 16, 2006, at 2:44 AM, Antony Bowesman wrote:
Doron Cohen wrote:
Hi Antony, you cannot instruct the query parser to do that. Note
that an
Thanks, I suspected as much. I've changed it to make the field
tokenized.
field name. This is an application logic to know that a certain
qu
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