Re: Best design for an use case which is going to stress Lucene

[Fabio Insaccanebbia]

 No queries on other fields (news metadata etc) will be performed.

Do you mean that a full text search on the news text isn't required?
I might be wrong, but it seems to me it doesn't sound as a typical
Lucene usage..

I'd go for the (c) option.. (but not just one table :-)

Bye,
Fabio

P.S.:
however a direct link news - customer seems a bit strange. Are you
sure you can't model the problem as news - news type - customer or
news - customer group - customer

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Re: webserverless search with lucene on offline HTML doc

[Fabio Insaccanebbia]

The signed applet is surely a simpler and more elegant solution..

In some projects however this could not be a viable option:
the System properties problem you have pointed out (and I had missed
:-) is hopefully going to be solved in 1.9
(http://issues.apache.org/jira/browse/LUCENE-369)

Fabio

P.S.: is there any possibilty to have a look at your quick and dirty
implementation of the JarDirectory? I've written a
JarReadOnlyDirectory but it was very dirty and not even so quick
for me to write :-(

 I wrote a quick and dirty implementation of a JarDirectory - it works, but a 
 new problem is encountered soon after: The indexWriter requires information 
 from the System properties; an applet is allowed to read only a limited set 
 of Properties.

 Especially with an offline applet I would stick to the solution of signing 
 the applet.

 Dolf.


On 2/21/06, Trieschnigg, R.B. (Dolf) [EMAIL PROTECTED] wrote:
  Wouldn't this be a good case for the JarDirectory implementation
  somebody asked for?
  The index could then be statically written in a jar file downloaded
  with the applet (the original mail refers to static offline HTML
  files).

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Re: webserverless search with lucene on offline HTML doc

[Fabio Insaccanebbia]

Wouldn't this be a good case for the JarDirectory implementation
somebody asked for?
The index could then be statically written in a jar file downloaded
with the applet (the original mail refers to static offline HTML
files).

It could even be a great idea for improving the Maven site-plugin :-)
[I mean: when you create the Maven generated site a Lucene based
plugin could index it, create the jar index and then add the applet
to the Maven pages]

On 2/20/06, Trieschnigg, R.B. (Dolf) [EMAIL PROTECTED] wrote:
 Hi Paulo,

 The main problem is that Lucene needs to store its index on a disk which 
 under normal circumstances an applet may not read. The applet operates in a 
 sandbox, which only allows safe operations. Reading and writing to disk is 
 not allowed. An applet can only get resources from the host it came from.
 As Lucene does not allow an IndexReader to be created for a URL, I guess it's 
 not possible in a normal applet environment. Or you should dive into the 
 IndexReader code an write your own IndexReader for remote indices.

 What you can also do is sign your applet; if a user accepts your applet as 
 safe you can run it as any other Java application (download the index from a 
 webserver to a temporary location and query it for example).
 But I am usually quite sceptic with accepting signed applets from unkown 
 distributors; as it is like leaving your door open for complete strangers 
 (of course you may delete all my files on disk).

 Are you going to put your applet on a website, or do you want to distribute 
 it on e.g. a cd? If I would buy some software from you on a cd, I would more 
 likely accept a signed applet than if I would visit some obscure homepage.

 Regards,
 Dolf





  -Original Message-
  From: paolo berto [mailto:[EMAIL PROTECTED]
  Sent: maandag 20 februari 2006 11:44
  To: java-user@lucene.apache.org
  Subject: webserverless search with lucene on offline HTML doc
 
  Hello,
 
  I would like to figure out if it is possible to write a java
  applet able to search with lucene through an HTML
  documentation WITHOUT having a webserver installed on the
  system and on multiple platforms.
 
  So I have a set of static offline HTML files forming a
  software documentation, would like to index it and search
  through it from a browser without having to install a web
  server and on various platforms (osx/win32/linux) Is that
  possible at all?
 
  Thanks and sorry for the basic question,
 
  paolo
 
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