Implementing Tagging and Excluding Filters with Solrj / Spring Data Solr

I am trying to implement a Solr Facet search with multi-select on a field. To take this example:

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, I would like to generate this call to solr:

q=mainquery&fq=status:public&fq={!tag=dt}doctype:pdf&facet=on&facet.field={!ex=dt}doctype

I am not sure how to call this using solrj (java) as I don't want to add a simple filed but I need to include the tagging and excluding (!tag=dt and !ex=dt). Any ideas what the java code should look like?

I am using Spring-Data-Solr which seems to be too basic to make such an advance call. So I think I need to go a level lower and use solrj. Either solution would be great (solrj or spring-data-solr)

With [link][1] I can do this :-


ModifiableSolrParams params = new ModifiableSolrParams();
params.add("fq", "{!tag=dt}doctype:pdf");
params.add("facet.field", "{!ex=dt}doctype");


[1]:

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The following block should create the querystring you want.

<!-- language: java -->

SimpleFacetQuery query = new SimpleFacetQuery(new SimpleStringCriteria("mainquery"))
.addFilterQuery(new SimpleQuery(new Criteria("status").is("public")))
.addFilterQuery(new SimpleQuery(new Criteria("{!tag=dt}doctype").is("pdf")));
query.setFacetOptions(new FacetOptions("{!ex=dt}doctype"));

solrTemplate.queryForFacetPage(query, YourBean.class);

Using `SolrQuery` (which is a subclass of `ModifiableSolrParams` from the other answer):

solrQuery.addFilterQyery("{!tag=dt}doctype:pdf");
solrQuery.addFacetField("{!ex=dt}doctype");