Monday, July 26, 2010

Lucene Index Toolbox

After you have succesfully created your first index with Lucene.Net you might wonder whether the index was actually created as you wanted. Well, such a tool exists, thanks to the binary compatibility between the Java version and the .NET version of Lucene.

The tool is called Lucene Index Toolbox. It is a Java based tool that allows inspecting file base indexes. To use it:

  1. Download the Lucene Index Toolbox. (This download version 1.0.1, please check for newer versions)
  2. Make sure you have a recent Java runtime installed.
  3. Open a command line for the directory containing the downloaded jar file
  4. Use “java -jar lukeall-x.y.z.jar” to start the tool. Replace x.y.z with the version you downloaded. I used 1.0.1 so the command line for me is: “java -jar lukeall-1.0.1.jar”

Once started you can try out queries against your Lucene index. Or you can have a look at the files of your index and their meaning. Here is an example:


A very useful tool in particular for the beginner. Happy coding!


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