[jira] [Commented] (OAK-1286) Enable/expose MoreLikeThis queries

["Thomas Mueller (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OAK-1286?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13873332#comment-13873332 ] 

Thomas Mueller commented on OAK-1286:
-------------------------------------

I have created the more general issue OAK-1325. But for MoreLikeThis queries, what would be your preferred syntax, and what would be the expected result (I guess it's not nodes)? Would you like to use a new query language, or (re-) use XPath and/or SQL-2, or an entirely new API?

I guess we would like to support MoreLikeThis queries for both (embedded) Lucene as well as Solr (http://wiki.apache.org/solr/MoreLikeThis) at some point, so I would prefer not exposing the Lucene API directly.

> Enable/expose MoreLikeThis queries
> ----------------------------------
>
>                 Key: OAK-1286
>                 URL: https://issues.apache.org/jira/browse/OAK-1286
>             Project: Jackrabbit Oak
>          Issue Type: Improvement
>          Components: oak-lucene
>            Reporter: Laurie byrum
>            Assignee: Thomas Mueller
>             Fix For: 0.15
>
>
> The software I'm building currently makes use of Lucene's MoreLikeThis \[1\] facilities in order to match user's search with Nodes in a JCR repository. MoreLikeThis gives us much better results than, for example, simple full text search.
> We have currently implemented this by having our own Lucene indices. For simplicity and efficiency, we'd prefer to use the copy of Lucene that is already built into Oak. To do so, I think we would need to add an indexer config. We would also need a way to pass such queries through the jcr query api. We would need something very similar to "rep:similar", but we would want to be able to pass the similar text through the api (I believe the current rep:similar can only take a node to be matched, as opposed to text to be matched).
> \[1\] http://lucene.apache.org/core/3_0_3/api/contrib-queries/org/apache/lucene/search/similar/MoreLikeThis.html



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