[SOLVED] Is there any way to apply De Morgan's law to dynamic query in Spring Data Solr?

Is there any way to apply De Morgan's law to dynamic query in Spring Data Solr?

I've got the following problem:

Solr seems to not like and return anything when a part of my dynamically generated criteria contains only negations, like this:

 AND (-title_facet:*title* AND -title_facet:*List*)

(Which is a Crotch, created from two separate Criteria)

As this really makes a problem, is there any way to apply De Morgan's law to said criteria so it would be:

AND -(title_facet:*title* OR title_facet:*List*)

I'm using Spring-data-solr 1.5.4

Solution

The reason why AND (-title_facet:*title* AND -title_facet:*List*) doesn't work, is because it doesn't have anything to subtract the matching documents from.

Solr works around this when you use it as a single query by appending the set of all documents in front of your query, but when you're doing the same thing further into a query, that won't be present.

AND (*:* AND -title_facet:*title* AND -title_facet:*List*)

.. should work, since you then have a proper set of documents (all the documents) which you can subtract those matching the other two sets from.