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From "Hoss Man (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SOLR-5103) Plugin Improvements
Date Mon, 05 Aug 2013 21:26:48 GMT

    [ https://issues.apache.org/jira/browse/SOLR-5103?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13729972#comment-13729972
] 

Hoss Man commented on SOLR-5103:
--------------------------------

bq. Small stuff shouldn't need any configuration... for instance a custom QParser should just
be able to work if it's in the classpath.

Ok, so something like a QParserPlugin could *optionally* register itself using a "default"
name hardcoded in it's code (similar to how SolrCore auto-wires the "default" QParsers that
come with solr-core out of hte box) ... but how would that work if multiple plugins try to
use the same name?  (in solr-core we can ensure that doesn't happen, and we don't register
something with the same name as a qparser explicitly registered via users configuration) Not
to mention you'd still need to support a method of explicitly registering QParserPlugins since
it might support init params that you want to specify (none of hte out of the box QParsers
do, but it's possible, and we shouldn't take that customization away)

QParsers really seem like the "special case" not the common case as far as plugins go and
this sort of hypothetical "automatic loading & registration" ... FieldTypes, Analysis
factories, search components, request handlers, ... these are all things i'm hard pressed
to imagine being useul w/o some sort of explicit "this is how i want to use it" type information
from the person admining the solr instance.


                
> Plugin Improvements
> -------------------
>
>                 Key: SOLR-5103
>                 URL: https://issues.apache.org/jira/browse/SOLR-5103
>             Project: Solr
>          Issue Type: Improvement
>            Reporter: Grant Ingersoll
>            Assignee: Grant Ingersoll
>             Fix For: 5.0
>
>
> I think for 5.0, we should make it easier to add plugins by defining a plugin package,
ala a Hadoop Job jar, which is a self--contained archive of a plugin that can be easily installed
(even from the UI!) and configured programmatically.

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