: So its something that can happen multiple times during the lifetime of : process, but i'm guessing something not occuring very often?
it should be called only once during hte lifetime of a given plugin, usually not long after construction -- but it could be called many, many times in the lifetime of the solr process. : Also is there a way to hook the shutdown of the core? any object (SolrCoreAware or otherwise) can ask the SolrCore to add a CloseHook at anytime... https://lucene.apache.org/solr/4_5_1/solr-core/org/apache/solr/core/SolrCore.html#addCloseHook%28org.apache.solr.core.CloseHook%29 -Hoss
