NSRelationshipDescription.h

/* Interface of the NSRelationshipDescription class for the GNUstep
   Core Data framework.
   Copyright (C) 2005 Free Software Foundation, Inc.
 
   Written by:  Saso Kiselkov <diablos@manga.sk>
   Date: August 2005
 
   This file is part of the GNUstep Core Data framework.
 
   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.
 
   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.
 
   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free
   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111 USA.
 */
 
#ifndef _NSRelationshipDescription_h_
#define _NSRelationshipDescription_h_
 
#import <CoreData/NSPropertyDescription.h>
 
typedef enum {
        NSNoActionDeleteRule,
        NSNullifyDeleteRule,
        NSCascadeDeleteRule,
        NSDenyDeleteRule
} NSDeleteRule;
 
@class NSEntityDescription;
 
@interface NSRelationshipDescription : NSPropertyDescription
{
  NSEntityDescription * _destinationEntity;
  NSDeleteRule _deleteRule;
   // weak reference
  NSRelationshipDescription * _inverseRelationship;
 
  int _minCount, _maxCount;
}
 
// Getting and setting the destination entity.
- (NSEntityDescription *) destinationEntity;
- (void) setDestinationEntity: (NSEntityDescription *) anEntityDescription;
 
// Getting and setting the inverse relationship.
- (NSRelationshipDescription *) inverseRelationship;
- (void) setInverseRelationship: (NSRelationshipDescription *)
  aRelationshipDescription;
 
// Getting and setting the delete rule.
- (NSDeleteRule) deleteRule;
- (void) setDeleteRule: (NSDeleteRule) aDeleteRule;
 
// Controlling cardinality.
- (int) minCount;
- (void) setMinCount: (int) aCount;
- (int) maxCount;
- (void) setMaxCount: (int) aCount;
- (BOOL) isToMany;
 
@end
 
#endif // _NSRelationshipDescription_h_