catalinmititelu at yahoo
Nov 19, 2007, 12:31 AM
Post #3 of 3
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Hi Fayyaz,
I recommend to use SAX or, maybe, a custom parser for large xml files .It should be faster than using Digester. The main difference between those xml parsers is that Digester needs to load the entire xml document in memory when it creates those objects, meanwhile you can parse the document and add its content in Lucene index on the fly using SAX. On the other hand with Digester the documents are parsed twice: once to transform the xml to Digester object and second you should use this object to add its content to Lucene index.
Digester is very good for small documents and if you don't want to worry about the xml parsing problems.
A custom parser maybe is the best solution if you want to have best performances. I chose this solution.
Regards,
Catalin
----- Original Message ----
From: syedfa <fayyazuddin [at] gmail>
To: java-user [at] lucene
Sent: Monday, November 19, 2007 5:43:28 AM
Subject: XML parsing using Lucene in Java
Dear Fellow Lucene Developers:
I am a java/jsp developer and have started learning lucene for the
purpose
of creating a search engine for some books that I have in xml format.
The
XML document is actually quite large, and would like to provide as
accurate
results as possible to the user searching through these books. My
question
is, which xml parser do you recommend using, SAX or Digester? Is there
a
difference? Does one parser provide better results than the other?
What
about performance issues?
Any help that you can provide is greatly appreciated. I look forward
to
hearing from you soon.
Take care.
Sincerely;
Fayyaz
--
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