def query_message
message = Message.new
message.append_string self.attribute.to_s
case self.values
when Range
if self.values.first.is_a?(Float) && self.values.last.is_a?(Float)
message.append_int FilterTypes[:float_range]
message.append_floats self.values.first, self.values.last
else
message.append_int FilterTypes[:range]
append_integer_range message, self.values
end
when Array
message.append_int FilterTypes[:values]
message.append_int self.values.length
append_array message, self.values
end
message.append_int self.exclude? ? 1 : 0
message.to_s
end