can i escape built in lucene keywords like OR, AND aswell?
Regards,
Aravind R Yarram
Chris Hostetter <[EMAIL PROTECTED]>
08/06/2008 07:05 PM
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Subject
Re: escaping special characters
: String escapedKe
hi, thank you very much for your reply. I am using the latest version,
lucene 2.3.2. I will try using two arguments and post my result later.
yanyan
Anshum-2 wrote:
>
> This really seems like an issue the batching mechanism (one of those
> errors
> which seem trivial on discovery :) ). I
Hi,
How about just opening a file and parsing through it while adding doing a
doc.add on each newline? That should be pretty straight and simple.
Just writing the snippet here, though this might have issues as didnt try to
compile it.
IndexWriter writer = new IndexWriter(indexDir, new Standard
Only one Writer should be active on an index at any given time. You
don't want to batch unless you need to see the docs in the index as
you build it. - it's slower overall. You can add from multiple threads
at the same time, but use the same Writer.
Sent from my iPhone
On Aug 6, 2008, at 8
This really seems like an issue the batching mechanism (one of those errors
which seem trivial on discovery :) ). I work with batched indexing and it
works absolutely fine on data that is a lot higher in magnitude. You could
try calling the indexwriter without the 3rd argument and see if it helps.
Hi,
I am building a search engine for text transcript documents from the
database of an enterprise messaging system, and have designed a batch
processing job to incrementally build the index,because the database from
production is around huge, around 10G.
Now I am still testing in DEV env
Do a little research to learn the rules and you will figure out how to
make those classes cooperate. You might start by looking at LUCENE-1026,
which is a simple set of classes that allows for what you want. You can
use it, use it to make your own, or even look at its father issue - the
origina
Hi all,
To allow mutilple users concurrently add, delete docs and at the same time
search the same index, what should I watch out for in terms of initing
indexreader, indexwriter and indexsearcher?
My application is getting various IOException (seek failed, permission denied,
etc...) when con
: String escapedKeywords = QueryParser.escape(keywords);
: Query query = new QueryParser("content", new
: StandardAnalyzer()).parse(escapedKeywords);
:
: this works with most of the special characters like * and ~ except \ . I
: can't do a search for a keyword like "ho\w" and get results.
: am I
The format is:
title date body
But this is normally only used to create documents as part of an
algorithm that you run under contrib/benchmark.
Mike
On Aug 6, 2008, at 4:12 PM, Brittany Jacobs wrote:
Hello, I am new to all this. I need to read in a text file and have
each
line
What you are describing sounds an awful lot lik you wantto "facet" on the
Author field ... if you search the mailing list archives you'll find quite
a bit of discussion on various approaches to this problem.
-Hoss
-
To unsubs
: word: termA^10.0 word: termB^2.0
:
: I want ALL termA results (ordered by score) to come before ANY termB
: results (also ordered by score). Is there a way to do this in the query
: syntax? Or is this simple multiple queries?
the syntax lets you specify the query boost on each clause, but th
: I can print the index terms but I don't know if there is any possibilites to
: print the coressbonds paths, i can just print the docid, but i need to print
: the paths as it is possible in searcher (query).
If you index or store the path in a field, then you can get it back out --
for the type
: for performance reasons I cache Hits for a certain Query in memcached, for
: things like pageination etc. My question right now is if it is possible to
: re-search such a cached Hits sets. That would be great for features like
: live-learch and so on. Does Lucene support that?
You can hang on t
Hi,
The new addition of the class CustomScoreQuery is very useful and
powerful in customizing the score of one query using the indexed field
values.
Another feature that I am looking for in Lucene is the ability to
combine the scores of multiple (sub)queries in a way different from the
Boolean
Hello, I am new to all this. I need to read in a text file and have each
line in the file be a document.
The LineDocMaker seems to be intended for this purpose. But I can't figure
out how to read the data into it.
Any examples would be greatly appreciated.
On Aug 6, 2008, at 3:06 PM, Alex Wang wrote:
Sorry about the double posting. After sending the first email I got
a delivery failure notice from [EMAIL PROTECTED] I resent it
just to be sure.
Unfornately there is no stack trace in the log. The error object was
passed to log4j.error(...),
Sorry about the double posting. After sending the first email I got a delivery
failure notice from [EMAIL PROTECTED] I resent it just to be sure.
Unfornately there is no stack trace in the log. The error object was passed to
log4j.error(...), but no stack trace was printed out.
I thought both I
What's the full exception? We don't even know that the exception is
in Lucene from what you've described. So, w/o more info, it will be
pretty hard to help, but if I had to guess, it sounds like you've got
some threading problems, but who knows.
Also, no need to send the exact same email
Hi Everyone,
We have an application built using Lucene 1.9. The app allows incremental
updating to the index while other users are searching the same index. Today,
some search suddenly returns nothing when we know it should return some hits.
This does not happen all the time. Sometimes the sea
Hi Everyone,
We have an application built using Lucene 1.9. The app allows incremental
updating to the index while other users are searching the same index. Today,
some search suddenly returns nothing when we know it should return some hits.
This does not happen all the time. Sometimes the sear
And I'm sure you have a construct like:
try
{
reader = open()
}
finally
{
if(reader != null)
reader.close()
}
right ?
As Grant says should you hold the reader open as long as possible since it
caches a lot of stuff.
Look at a SearcherCache:
http://dev.tailsweep.com/svn/core-lucene/trunk/s
You certainly can - just create your own Analyzer starting with a copy
of the French one you are using.
Then you just plug in the filter in the order you want it applied:
result = new ISOLatin1AccentFilter(result);
You have to decide for yourself where it will come - if you put it
before the
Actualy in my FrenchAnalyser
i have :
TokenStream result = new StandardTokenizer(reader);
result = new StandardFilter(result);
result = new StopFilter(result, stoptable);
result = new FrenchStemFilter(result, excltable);
result = new LowerCaseFilter(result);
I can use ISOLati
Check out org.apache.lucene.analysis.ISOLatin1AccentFilter
It will strip diacritics - just be sure to use it at index time and
query time to get what you want. Also, you will no longer be able to
differentiate between the two in your searching (rarely that important
in my opinion, but others c
Hello
I'm use FrenchAnalyzer for index
IndexWriter writer = new IndexWriter(pathOfIndex, new FrenchAnalyzer(),
true);
Document = new Document();
doc.add(new
Field("TXT_CHARACT_VALUE",word.toLowerCase(),Field.Store.YES,Field.Index.TOKENIZED));
writer.addDocument(doc);
And search
IndexReader re
Hi,
I want to agree with the advice of using only one index.
And I want to add two reasons:
1. Sorting and caching are working with the lucene-document-numbers.
In case of lucene "warming up" means that a lot of int-Arrays and bitsets
are stored in main memory.
If you using different MultiReader
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