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The following page has been changed by HossMan: http://wiki.apache.org/solr/HackingSolr New page: = Solr Plugins = The first thing to know if you are interested in hacking and customizing Solr, is that you may not need to customize the source at all. Solr has a fairly extensive number of [:SolrPlugin:Plugin Hooks] that allow you to add custom functionality for a variety of purposes by developing against some simple APIs, and then use your plugins by placing your jar in a special "lib" directory and refering to them by name in your configuration file. = web.xml Hacks = Some behavior of Solr can be modified just by changing the [http://svn.apache.org/viewvc/lucene/solr/trunk/src/webapp/web/WEB-INF/web.xml?view=markup web.xml] == Customizing the Path Prefix Solr Intercepts == If you are wiring Solr into a larger web application which controls the web context root, you will probably want to mount Solr under a path prefix (app.war with /app/solr mounted into it, for example). You will need to specify a prefix init-param for the !SolrDispatchFilter to do this. See the comments in the web.xml for details. == Hardcoding Solr Home == The Solr Home can be hardcoded using JNDI {{{ <env-entry> <env-entry-name>solr/home</env-entry-name> <env-entry-type>java.lang.String</env-entry-type> <env-entry-value>/put/your/solr/home/here</env-entry-value> </env-entry> }}} = Embedding Solr = In addition to using Solr as a web based application, the SolrJ API provides the apility to embedded the core Solr functionality into any Java application using [:Solrj#EmbeddedSolrServer:EmbeddedSolrServer].
