bounce ________________________________ From: Kevin Jia Sent: December 12, 2018 6:36:33 PM To: dev@lucene.apache.org Subject: Proposed Additional Hooks in SolrEventListener
Hi Everyone, I'm looking to add Prospective Search functionality to Solr, similar to what Luwak (https://github.com/flaxsearch/luwak) does - see existing JIRA ticket : https://issues.apache.org/jira/browse/SOLR-4587<https://issues.apache.org/jira/browse/SOLR-4587?page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel&focusedCommentId=14202585#comment-14202585>. To do this I need to maintain an in-memory cache that is in sync with the document index (custom cache that is not a straightforwards field cache). To maintain my in-memory cache, I wanted to add functionality after updates (in DirectUpdateHandler2) and SolrCore instantiation. Instead of changing the code directly I wanted to add more hooks to SolrEventListener, namely these: public void postCoreConstruct(SolrCore core); public void preAddDoc(AddUpdateCommand cmd); public void postAddDoc(AddUpdateCommand cmd); public void preDelete(DeleteUpdateCommand cmd); public void postDelete(DeleteUpdateCommand cmd); I also made a ticket: https://issues.apache.org/jira/browse/SOLR-4587. If anyone ever needs similar custom behavior, they would be able to use these hooks as well. Does anyone have any thoughts or suggestions on my proposed changes? Is there a better way to do this? If not, I can submit a patch soon. Best, Kevin
