query.java

DBObject command = BasicDBObjectBuilder
                        .start("text", "myCollection")
                        .append("search", query.getTerm())
                        .get();
                
CommandResult result =  db.command(command);
BasicDBList results = (BasicDBList) result.get("results");
        
for(Object o : results) {
  DBObject dbo = (DBObject) ((DBObject) o).get("obj");
  String id = (String) dbo.get("_ID");
            
  System.out.println(id);
}