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CdbBdbHintProvider.hh

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#ifndef CDBBDB_HINT_PROVIDER_HH
#define CDBBDB_HINT_PROVIDER_HH

// File and Version Information:
//      $Id: CdbBdbHintProvider.hh,v 1.2 2002/09/23 22:39:08 gapon Exp $

#include "CdbBase/CdbCommon.hh"

#include "BdbUtil/Bdb.hh"
#include "BdbCond/BdbObject.hh"

class BdbTime;

/// This class defines a "hint provider" interface for the current technology
/**
  * This interface has to be implemented through concrete implementations
  * of the current technology.
  */
class CdbBdbHintProvider {

public:

  /// The destructor.
  /**
    * Just to introduce the virtuality
    */
    virtual ~CdbBdbHintProvider( );

  /// Get the hint for specified parameters
  /**
    * This method if successfull (defined by the completions status) will set up
    * the value of the hint.
    *
    * @returns a completion status of the operation
    */
    virtual CdbStatus hint( BdbRefAny&     theHint,
                            const BdbTime& theBegin,
                            const BdbTime& theEnd ) = 0;

  /// Verify if created object matches the hint
  /**
    * @returns a completion status of the operation
    */
    virtual CdbStatus verify( const BdbRefAny&         theHint,
                              const BdbRef(BdbObject)& theObjectRef ) = 0;
};

#endif  // CDBBDB_HINT_PROVIDER_HH

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