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From "Chetan Mehrotra (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (OAK-2329) Use LuceneQuery parser to create query from fulltext string
Date Thu, 09 Jul 2015 04:36:05 GMT

     [ https://issues.apache.org/jira/browse/OAK-2329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chetan Mehrotra updated OAK-2329:
---------------------------------
    Labels: candidate_oak_1_0  (was: )

> Use LuceneQuery parser to create query from fulltext string
> -----------------------------------------------------------
>
>                 Key: OAK-2329
>                 URL: https://issues.apache.org/jira/browse/OAK-2329
>             Project: Jackrabbit Oak
>          Issue Type: Sub-task
>          Components: lucene
>            Reporter: Chetan Mehrotra
>            Assignee: Chetan Mehrotra
>              Labels: candidate_oak_1_0
>             Fix For: 1.1.6
>
>         Attachments: OAK-2329.patch
>
>
> Currently the Oak QueryEngine parses the fulltext expression and
> produces the FulltextExpression. This was required for runtime
> aggregation to work. This allowe [d the LuceneIndex to just convert
> the given text (in FulltextTerm) to corresponding Lucene Query [1].
> Note that JCR contract for fulltext clause [2] supports some grammer
> which was so far handled by the Oak QueryEngine.
> Now when moving to index time aggregation it was realized that such parsing of fulltext
expression is problamatic [3] in presence of
> different analyzers. As we fix that we need also support the
> requirements mentioned in [2]. JR2 used to do that via Lucene
> QueryParser [4].
> As a fix {{LucenePropertyIndex}} should use a Lucene QueryParser to construct the query.

> Now need to determine which parser to use [5] :). [SimpleQueryParser|https://issues.apache.org/jira/browse/LUCENE-5336]
looks useful!
> [1] https://github.com/apache/jackrabbit-oak/blob/trunk/oak-lucene/src/main/java/org/apache/jackrabbit/oak/plugins/index/lucene/LucenePropertyIndex.java#L913
> [2] http://www.day.com/specs/jcr/1.0/6.6.5.2_jcr_contains_Function.html
> [3] https://issues.apache.org/jira/browse/OAK-2301
> [4] https://github.com/apache/jackrabbit/blob/trunk/jackrabbit-core/src/main/java/org/apache/jackrabbit/core/query/lucene/JackrabbitQueryParser.java
> [5] https://lucene.apache.org/core/4_7_0/queryparser/



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