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https://issues.apache.org/jira/browse/SOLR-182?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12483796
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Ryan McKinley commented on SOLR-182:
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yes, that situation is handled by this patch. This was one of my primary
reasons for writing it!
This patch lets you do call SolrCore.getCore() and inspect the
schema/index/whatever. Without it, you need to do some sort of lazy loading
after the first request.
> register SolrRequestHandlers at runtime / lazy loading
> ------------------------------------------------------
>
> Key: SOLR-182
> URL: https://issues.apache.org/jira/browse/SOLR-182
> Project: Solr
> Issue Type: Improvement
> Reporter: Ryan McKinley
> Fix For: 1.2
>
> Attachments: SOLR-182-RuntimeRequestHandlers.patch,
> SOLR-182-RuntimeRequestHandlers.patch, SOLR-182-RuntimeRequestHandlers.patch,
> SOLR-182-RuntimeRequestHandlers.patch, SOLR-182-RuntimeRequestHandlers.patch
>
>
> It would be useful to be able to register handlers after SolrCore has been
> initialized initialized. It is also useful to be able to ask what handlers
> are registered and to where. This patch adds the following functions to
> SolrCore:
> SolrRequestHandler registerRequestHandler(String handlerName,
> SolrRequestHandler handler);
> Collection<SolrRequestHandler> getRequestHandlers(Class<? extends
> SolrRequestHandler> clazz);
> It also guarantees that request handlers will be initialized with an argument
> saying what path it is registered to. RequestHandlerBase gets a bean for the
> registered path.
> While discussing this, Yonik suggested making it possible to defer
> initialization of some handlers that will be infrequently used. I added the
> 'LazyRequestHandlerWrapper' (if taking this out makes the patch any easier
> to commit - it can get its own issue)
> check:
> http://www.nabble.com/Dynamic-RequestHandler-loading-tf3351707.html
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