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https://issues.apache.org/jira/browse/SOLR-2523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13048310#comment-13048310
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Martijn van Groningen commented on SOLR-2523:
---------------------------------------------

I'm currently adding getAsFilterQuery() method for range facets as described 
here:
http://www.mail-archive.com/solr-user@lucene.apache.org/msg51871.html

I'm currently having a problem with parsing date gaps. DateMathParser is part 
of Solr core, so I can't use it in SolrJ. I moved it to solr commons, which let 
me to another issue. The DateMathParser#getNow() method uses SolrRequestInfo 
which uses a lot of Solr core classes. So I thought I should introduce a 
CurrentDataSource callback, which decouples the DateMatchParser completely from 
core. Any thoughts about this approach?

Maybe we should commit the current patch as it is now and open a new issue for 
adding getAsFilterQuery() method. We can then open another issue for moving the 
DateMathParser to commons, which I think is a good idea any way.

> SolrJ QueryResponse doesn't support range facets
> ------------------------------------------------
>
>                 Key: SOLR-2523
>                 URL: https://issues.apache.org/jira/browse/SOLR-2523
>             Project: Solr
>          Issue Type: Improvement
>          Components: clients - java
>            Reporter: Martijn van Groningen
>            Assignee: Martijn van Groningen
>            Priority: Trivial
>             Fix For: 3.3, 4.0
>
>         Attachments: SOLR-2523.patch, SOLR-2523.patch
>
>
> It is possible to get date facets and pivot facets in SolrJ.
> {code:java}
> queryResponse.getFacetDate();
> queryResponse.getFacetPivot();
> {code}
> Having this also for range fields would be nice. Adding this is trivial. 
> Maybe we should deprecate date facet methods in QueryResponse class? Since it 
> is superseded by range facets. Also some set / add / remove methods for 
> setting facet range parameters on the SolrQuery class would be nice.

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