# The old StringValueInDocProc class

**URL:** <https://discuss.elastic.co/t/the-old-stringvalueindocproc-class/12911>\
**Category:** Elasticsearch\
**Created:** [July 23, 2013, 9:59pm UTC](https://discuss.elastic.co/t/the-old-stringvalueindocproc-class/12911 "2013-07-23T21:59:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Baris\_Kaya](https://avatars.discourse-cdn.com/v4/letter/b/c6cbf5/32.png) [@Baris\_Kaya](https://discuss.elastic.co/u/Baris_Kaya)\
**Post date:** [July 23, 2013, 9:59pm UTC](https://discuss.elastic.co/t/the-old-stringvalueindocproc-class/12911/1 "2013-07-23T21:59:30Z")

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Hello,

I'm trying to update the Approx. plugin for ElasticSearch (which supports  
only the 0.20 release), and I encountered a problem. The Approx. plugin is  
using the StringValueInDocProc class, which is not available anymore, and I  
also couldn't find an alternative for it. Are the developers thinking of  
implementing an alternative class for that? Classes like  
DoubleValueInDocProc have alternatives named like  
DoubleFacetAggregatorBase. Are you planning to build a class named  
StringFacetAggregatorBase?

Thanks,  
Baris Kaya

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<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [July 6, 2017, 2:24am UTC](https://discuss.elastic.co/t/the-old-stringvalueindocproc-class/12911/2 "2017-07-06T02:24:56Z")

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Closed on July 6, 2017, 2:24am UTC