10 class DATABOARD_API OptionalValue : public Value {
12 OptionalValue(Databoard::Type::DataType* dataBoard);
13 virtual ~OptionalValue();
15 virtual std::string writeOut(int indent = 0);
16 virtual bool equals(const Value* other);
18 void setValue(Value* value);
21 // Get the value or null if value doesn't exist
25 virtual std::string isValid();