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https://issues.apache.org/jira/browse/SOLR-2580?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13046222#comment-13046222
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Simon Rosenthal commented on SOLR-2580:
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Tomas:l
I'm not sure why you would want to encapsulate these kind of rules within Solr
- an e-commerce site would always have an application layer between the UI and
Solr which seems like the logical place to apply business rules leading to
modifying the request by adding boosts, specifying sort order, etc.
Also, is Drools separate from JBoss (which is used relatively in frequently in
the Solr community) ?
> Create a new Search Component to alter queries based on business rules.
> ------------------------------------------------------------------------
>
> Key: SOLR-2580
> URL: https://issues.apache.org/jira/browse/SOLR-2580
> Project: Solr
> Issue Type: New Feature
> Reporter: Tomás Fernández Löbbe
>
> The goal is to be able to adjust the relevance of documents based on user
> defined business rules.
> For example, in a e-commerce site, when the user chooses the "shoes"
> category, we may be interested in boosting products from a certain brand.
> This can be expressed as a rule in the following way:
> rule "Boost Adidas products when searching shoes"
> when
> $qt : QueryTool()
> TermQuery(term.field=="category", term.text=="shoes")
> then
> $qt.boost("{!lucene}brand:adidas");
> end
> The QueryTool object should be used to alter the main query in a easy way.
> Even more human-like rules can be written:
> rule "Boost Adidas products when searching shoes"
> when
> Query has term "shoes" in field "product"
> then
> Add boost query "{!lucene}brand:adidas"
> end
> These rules are written in a text file in the config directory and can be
> modified at runtime. Rules will be managed using JBoss Drools:
> http://www.jboss.org/drools/drools-expert.html
> On a first stage, it will allow to add boost queries or change sorting fields
> based on the user query, but it could be extended to allow more options.
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