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// Copyright (C) 1995 The New York Group Theory Cooperative
// See magnus/doc/COPYRIGHT for the full notice.
// Contents: Declaration of interface class OID
//
// Principal Author: Roger Needham
//
// Status: complete
//
// Revision History:
//
#ifndef _OID_H_
#define _OID_H_
#include <iostream.h>
#include "IPC.h"
//---------------------------------------------------------------------------//
//------------------------------- OID ---------------------------------------//
//---------------------------------------------------------------------------//
class OID
{
public:
bool operator == ( const OID& oid ) const {
return theOID == oid.theOID;
}
bool operator != ( const OID& oid ) const {
return theOID != oid.theOID;
}
inline friend ostream& operator << ( ostream& ostr, const OID& oid ) {
return ostr << oid.theOID;
}
int hash( ) const { return theOID; }
int unwrap( ) const { return theOID; }
// We don't want a conversion, even for friends, because of possible
// ambiguity. Making this private creates friendship problems for
// classes in the scope of another class. It seems safe enough to
// permit public unwrapping, since only friends can rewrap.
/////////////////////////////////////////////////////////////////////////
// //
// IPC tools: //
// //
/////////////////////////////////////////////////////////////////////////
friend ostream& operator < ( ostream& ostr, const OID& oid )
{
ostr < oid.theOID;
return ostr;
}
friend istream& operator > ( istream& istr, OID& oid )
{
istr > oid.theOID;
return istr;
}
private:
friend class Ctor;
friend class SessionManager;
friend class TheObjects;
friend class SMFPGroup;
friend class RunPackage; // @am need to find SMObject by its OID, why is it private?
friend class DatabaseManager;
OID( int i ) : theOID( i ) { }
// Used by class Ctor, class SessionManager, class TheObjects.
/*@@db
OID( ); // Hidden, not to be implemented.
*/
int theOID;
//@@db temporary declaration.
public:
OID( ) : theOID( 0 ) { }
};
#endif
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