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