This works by communicating with solr over http requests.
arrayThe resource identifier(s) of the document(s) that should be deleted.
Any warning will be treated as error.
Note, that $document may also be an array of documents without further changes to this backend.
arrayA list of midcom_services_indexer_document objects.
stringThe query, which must suite the backends query syntax.
\midcom_services_indexer_filterAn optional filter used to restrict the query. This may be null indicating no filter.
ArrayAn array of documents matching the query, or false on a failure.