Sets the top level operator as a PT_BOOLOPS for the filter. This operator expresses the conditional relationship between the filter's basic composite field condition (SearchString) and its property filter (if any). A filter's basic composite field condition is a top level single instance search against a combination of the name, description, and full text of indexed items. This operator does not have any significance for items contained in any clause assigned to the propery filter component of this filter.
IPTFilter Interface | com.plumtree.server Namespace