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https://github.com/gnustep/libs-base.git
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50126f616f
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/base/trunk@8219 72102866-910b-0410-8b05-ffd578937521
143 lines
3.2 KiB
Objective-C
143 lines
3.2 KiB
Objective-C
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/* NSClassDescription
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Copyright (C) 2000 Free Software Foundation, Inc.
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Written by: Richard Frith-Macdonald <rfm@gnu.org>
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Date: 2000
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This file is part of the GNUstep Base Library.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111 USA.
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*/
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#include <Foundation/NSClassDescription.h>
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#include <Foundation/NSLock.h>
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#include <Foundation/NSMapTable.h>
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#include <Foundation/NSNotification.h>
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@implementation NSClassDescription
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static NSRecursiveLock *mapLock = nil;
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static NSMapTable *classMap;
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+ (NSClassDescription*) classDescriptionForClass: (Class)aClass
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{
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NSClassDescription *description;
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[mapLock lock];
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description = NSMapGet(classMap, aClass);
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if (description == nil)
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{
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NSNotificationCenter *nc;
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nc = [NSNotificationCenter defaultCenter];
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[nc postNotificationName: NSClassDescriptionNeededForClassNotification
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object: aClass];
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description = NSMapGet(classMap, aClass);
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}
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RETAIN(description);
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[mapLock unlock];
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return AUTORELEASE(description);
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}
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+ (void) initialize
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{
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if (self == [NSClassDescription class])
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{
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classMap = NSCreateMapTable(NSObjectMapKeyCallBacks,
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NSObjectMapValueCallBacks, 100);
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mapLock = [NSRecursiveLock new];
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}
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}
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+ (void) invalidateClassDescriptionCache
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{
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[mapLock lock];
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NSResetMapTable(classMap);
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[mapLock unlock];
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}
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+ (void) registerClassDescription: (NSClassDescription*)aDescription
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forClass: (Class)aClass
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{
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if (aDescription != nil && aClass != 0)
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{
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[mapLock lock];
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NSMapInsert(classMap, aClass, aDescription);
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[mapLock unlock];
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}
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}
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- (NSArray*) attributeKeys
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{
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return nil;
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}
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- (NSString*) inverseForRelationshipKey: (NSString*)aKey
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{
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return nil;
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}
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- (NSArray*) toManyRelationshipKeys
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{
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return nil;
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}
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- (NSArray*) toOneRelationshipKeys
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{
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return nil;
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}
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@end
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@implementation NSObject(ClassDescriptionForwards)
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static Class NSClassDescriptionClass = 0;
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- (NSArray*) attributeKeys
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{
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return [[self classDescription] attributeKeys];
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}
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- (NSClassDescription*) classDescription
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{
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if (NSClassDescriptionClass == 0)
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{
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NSClassDescriptionClass = [NSClassDescription class];
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}
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return [NSClassDescriptionClass classDescriptionForClass: [self class]];
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}
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- (NSString*) inverseForRelationshipKey: (NSString*)aKey
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{
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return [[self classDescription] inverseForRelationshipKey: aKey];
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}
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- (NSArray*) toManyRelationshipKeys
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{
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return [[self classDescription] toManyRelationshipKeys];
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}
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- (NSArray*) toOneRelationshipKeys
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{
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return [[self classDescription] toOneRelationshipKeys];
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}
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@end
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