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CdbStatus.hh

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#ifndef CDB_STATUS_HH
#define CDB_STATUS_HH

// File and Version Information:
//      $Id: CdbStatus.hh,v 1.7 2004/08/06 05:54:14 bartoldu Exp $

#include <iosfwd>

/// The "Active Status Object" class
/**
  * Objects of this class are returned from those methods of the Condition/DB API
  * where it seems appropriate.
  */
class CdbStatus {

    friend std::ostream& operator<<( std::ostream& o, const CdbStatus& s );

private:

    /// A constructor
    /**
      * Initialize an object with specified string. This message will
      * be delivered when an object is printed onto the output stream.
      */
    CdbStatus( const char* msg );

public:

    static const CdbStatus& Success;
    static const CdbStatus& Warning;
    static const CdbStatus& Error;
    static const CdbStatus& NotImplemented;
    static const CdbStatus& NotFound;
    static const CdbStatus& IllegalParameters;
    static const CdbStatus& ConflictOfParameters;

public:

    CdbStatus( const CdbStatus& s = CdbStatus::Success );

    CdbStatus& operator=( const CdbStatus& s );

    bool operator==( const CdbStatus& s ) const;
    bool operator!=( const CdbStatus& s ) const;

private:

    const char* _myMsg;
};

/// Definition for the Active Status Object streamer
/**
  * The implementation of this global operator is somewhere else.
  */
std::ostream& operator<<( std::ostream& o, const CdbStatus& s );

#endif  // CDB_STATUS_HH

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