It depends on your use case. What is you custom criteria how is stored etc.
For example I had two tables, lets say items and permissions tables. Permissions table was holding itemId,userId pairs. Meaning userId can see this itemId. My initial effort was index items and add a multivalued field named WhoCanSeeMe. And fiterQuery on that field using current user. After sometime indexing become troublesome. Indexing was slowing down. I switched to two cores for each table and used query time join. (JoinQParser) as a fq. I didnt have anly plugin for the above. By the way here is an example of post filter Joel advises : http://searchhub.org/2012/02/22/custom-security-filtering-in-solr/ On Monday, December 2, 2013 5:14 AM, Joel Bernstein <joels...@gmail.com> wrote: What you're looking for is a QParserPlugin. Here is an example: http://svn.apache.org/viewvc/lucene/dev/tags/lucene_solr_4_6_0/solr/core/src/java/org/apache/solr/search/FunctionRangeQParserPlugin.java?revision=1544545&view=markup You're probably want to implement the QParserPlugin as PostFilter. On Sun, Dec 1, 2013 at 3:46 PM, Thomas Seidl <re...@gmx.net> wrote: > Hi, > > I'm currently looking at writing my first Solr plugin, but I could not > really find any "overview" information about how a Solr request works > internally, what the control flow is and what kind of plugins are available > to customize this at which point. The Solr wiki page on plugins [1], in my > opinion, already assumes too much knowledge and is too terse in its > descriptions. > > [1] http://wiki.apache.org/solr/SolrPlugins > > If anyone knows of any good ressources to get me started, that would be > awesome! > > However, also pretty helpful would be just to know what kind of plugin I > should create for my use case, as I could then at least try to find > information specific to that. What I want to do is filter the search > results (at the time fq filters are applied, so before sorting, facetting, > range selection, etc. takes place) by some custom criterion (passed in the > URL). The plan is to add the data needed for that custom filter as a > separate set of documents to Solr and look them up from the Solr index when > filtering the query. Basically the thing discussed in [2], at 29:07. > > [2] http://www.youtube.com/watch?v=kJa-3PEc90g&feature=youtu.be&t=29m7s > > So, the question is, what kind of plugin would I use (and how would it > have to be configured)? I first thought it'd have to be a SearchComponent, > but I think with that I'd only get the results after they are sorted and > trimmed to the range, right? > > Thanks a lot in advance, > Thomas Seidl > -- Joel Bernstein Search Engineer at Heliosearch
