# Ferret against Java Lucene index

**URL:** <https://www.ruby-forum.com/t/ferret-against-java-lucene-index/116765>\
**Category:** Ferret\
**Created:** [October 9, 2007, 4:19pm UTC](https://www.ruby-forum.com/t/ferret-against-java-lucene-index/116765 "2007-10-09T16:19:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![soderic](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/8baadc/32.png) [@soderic](https://www.ruby-forum.com/u/soderic)\
**Post date:** [October 9, 2007, 4:19pm UTC](https://www.ruby-forum.com/t/ferret-against-java-lucene-index/116765/1 "2007-10-09T16:19:39Z")

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Hi,

I am working on a project which has a large Lucene index in place. Can  
(any version of) Ferret be used against an index built using Java  
Lucene?

Thanks,  
Eric

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**Author:** ![soderic](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/s/8baadc/32.png) [@soderic](https://www.ruby-forum.com/u/soderic)\
**Post date:** [October 10, 2007, 12:37am UTC](https://www.ruby-forum.com/t/ferret-against-java-lucene-index/116765/2 "2007-10-10T00:37:56Z")

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Hi Eric,

versions up to and including 0.9 apparently, with some conditions. And  
it isn’t well tested either.

[http://ferret.davebalmain.com/trac/wiki/FAQ:Indexing#CanIuseanindexthatwasbuildwithLucene](http://ferret.davebalmain.com/trac/wiki/FAQ:Indexing#CanIuseanindexthatwasbuildwithLucene)

But tbh, there has been a lot of great work put into Ferret since 0.9  
(now up to 0.11) it might be worth rebuilding if possible.

## John.

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