DataWriter.h

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#ifndef DATAWRITER_H_
#define DATAWRITER_H_

#include "data/DataAccessor.h"
#include "data/DataValue.h"
#include "utils/Timestamp.h"

class Unit;
class UniversalDataElement;
template < typename T > class FlexArray;

class DataWriter : public DataAccessor
{
public:
    DataWriter( Component* owner,
                DataElement& element,
                UniversalDataElement* universal,
                Logger::TimePrecisionType timePrecisionType );
    virtual ~DataWriter();

    //===============================================================
    bool setUnavailable( bool unavailable = true );
    bool isUnavailable(); // Normally called on a reader, but can also be called on a writer
    bool setInvalid( bool invalid = true );
    bool isInvalid();
    void registerChange( void );

    virtual bool write( const Unit& unit, const unsigned char value, const Timestamp& timestamp = Timestamp::NOT_SET_TIME );
    virtual bool write( const Unit& unit, const double value, const Timestamp& timestamp = Timestamp::NOT_SET_TIME );
    virtual bool write( const Unit& unit, const int value, const Timestamp& timestamp = Timestamp::NOT_SET_TIME );
    virtual bool write( const DataValue& value, const Timestamp& timestamp = Timestamp::NOT_SET_TIME );

    const Timestamp& getTimestamp();

    bool isDataRequested();

    bool isImplemented();

    void componentRequestData( bool requestingData )
    {
        componentRequestingData_ = requestingData;
    }

protected:
    bool componentRequestingData_;

};

#endif /*DATAWRITER_H_*/