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IAREL.H
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1993-09-22
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/*******************************************************************************
* *
* COPYRIGHT: *
* IBM C/C++ Tools Version 2.01 - Collection Class Library *
* Licensed Materials - Property of IBM *
* (C) Copyright IBM Corporation 1992, 1993 *
* All Rights Reserved *
* US Government Users Restricted Rights - Use, duplication, or disclosure *
* restricted by GSA ADP Schedule Contract with IBM Corp. *
* *
*******************************************************************************/
#ifndef _IAREL_H
#define _IAREL_H
#include <iglobals.h>
#include <icursor.h>
#include <iaeqkey.h>
template < class Element, class Key >
class IARelation :
public virtual IAEqualityKeyCollection < Element, Key > {
public:
virtual IBoolean operator == (IARelation < Element, Key > const&) const;
virtual IBoolean operator != (IARelation < Element, Key > const&) const;
virtual void unionWith (IARelation < Element, Key > const&) = 0;
virtual void intersectionWith (IARelation < Element, Key > const&) = 0;
virtual void differenceWith (IARelation < Element, Key > const&) = 0;
virtual void addUnion (IARelation < Element, Key > const&,
IARelation < Element, Key > const&) = 0;
virtual void addIntersection (IARelation < Element, Key > const&,
IARelation < Element, Key > const&) = 0;
virtual void addDifference (IARelation < Element, Key > const&,
IARelation < Element, Key > const&) = 0;
protected:
INumber numberOfOccurrences (Element const&) const;
IBoolean locateNext (Element const&, ICursor&)
const;
INumber removeAllOccurrences (Element const&);
};
#ifdef __IBMCPP__
#ifndef __TEMPINC__
#include <iarel.c>
#endif
#endif
#endif