BaseOutputOptionalValueAttribute.h

// BaseOutputOptionalValueAttribute.h:
// -----------------------------------
//

#ifndef __IPSDKBASEPROCESSING_BASEOUTPUTOPTIONALVALUEATTRIBUTE_H__
#define __IPSDKBASEPROCESSING_BASEOUTPUTOPTIONALVALUEATTRIBUTE_H__

// suppression warning
// warning C4251: 'ipsdk::processor::BaseOutputOptionalValueAttribute<T>::_defaultValue' : class 'std::basic_string<_Elem,_Traits,_Ax>' needs to have dll-interface to be used by clients of class 'ipsdk::processor::BaseOutputOptionalValueAttribute<T>'
#pragma warning (push)
#pragma warning (disable : 4251)

#include <IPSDKBaseProcessing/Attribute/Value/Output/BaseOutputValueAttribute.h>

namespace ipsdk {
namespace processor {


template <typename T>
class IPSDKBASEPROCESSING_API BaseOutputOptionalValueAttribute : public BaseOutputValueAttribute<T>
{
    // declare serial class
    IPSDK_DECLARE_ABSTRACT_SERIAL_WITHOUT_COPY(IPSDKBaseProcessing, BaseOutputOptionalValueAttribute);

    // declare optional data
    IPSDK_DECLARE_OPTIONAL_DATA();

// constructor and destructor
protected:
    BaseOutputOptionalValueAttribute(const T& defaultValue = T());
public:
    virtual ~BaseOutputOptionalValueAttribute() = 0;

// methods
public:
    const T&        getDefaultValue() const
    {
        return _defaultValue;
    }

// attributes
protected:
    T       _defaultValue;
};


} // end of namespace processor
} // end of namespace ipsdk

#pragma warning (pop)

#endif // __IPSDKBASEPROCESSING_BASEOUTPUTOPTIONALVALUEATTRIBUTE_H__