[jira] [Resolved] (SOLR-8329) SchemaSimilarityFactory should support a config option for the defaultSimilarity

["Hoss Man (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SOLR-8329?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hoss Man resolved SOLR-8329.
----------------------------
    Resolution: Fixed

> SchemaSimilarityFactory should support a config option for the defaultSimilarity
> --------------------------------------------------------------------------------
>
>                 Key: SOLR-8329
>                 URL: https://issues.apache.org/jira/browse/SOLR-8329
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Hoss Man
>            Assignee: Hoss Man
>             Fix For: 5.4, Trunk
>
>         Attachments: SOLR-8329.patch
>
>
> SchemaSimilarityFactory has an implicit default Similarity instance that it uses for any fieldTypes that don't define their own -- we should make this default configurable.
> ----
> Example of how to use this new option from the javadocs...
> {code}
>    <similarity class="solr.SchemaSimilarityFactory" >
>      <str name="defaultSimFromFieldType">type-using-custom-dfr</str>
>    </similarity>
>    ...
>    <fieldType name="type-using-custom-dfr" class="solr.TextField">
>      ...
>      <similarity class="solr.DFRSimilarityFactory">
>        <str name="basicModel">I(F)</str>
>        <str name="afterEffect">B</str>
>        <str name="normalization">H3</str>
>        <float name="mu">900</float>
>      </similarity>
>    </fieldType>
>  {code}



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