sPFFramework/src/main/java/it/polimi/spf/framework/search/SearchScheduler.java
void stopSearch(String queryId) {
		QueryInfo info = queries.get(queryId);
		if(info !=  null){
			stopSearch(info);
		}
	}
void stopSearch(String queryId) {
		QueryInfo info = queries.get(queryId);
		if(info !=  null){
			stopSearch(info);
		}
	}
Call this method to stop the search and release the associated resources.
The application will not be notified about the event;

@param qd
@return