: I tried to do that with a custom query handler and a custom response : writer and i'm able to write in the response msg of solr but only in the : response node of the xml msg an not in the results node.
i would strongly advise against tyring to modify the <result/> block in any way -- that will only cause confusion for clients trying to access your solr install using clients that expect the default format. you are probably much better off just using a stock ResponseWriter and having your RequestHandler modify the SolrQueryResponse object to include your data as regular simple objects. If you goal is to add psuedo-fields to each document in the results, then you could convert any DocList you encounter to a SolrDocumentList and modify those Documents to add your additional field values -- then the stock response writers will take care of formatting things for you -- but agian: i would advise that. if you look ta how things like highlighting work, they just use a parallel list of documents that is easy to map (there is an open issue to standardize a way for plugins to add "meta fields" per doc, but until that's official the parallel list approach is the best way to deal with stuff like this in a way that won't cause problems with clients or when upgrading Solr) -Hoss
