/usr/include/GNUstep/GDLAccess/EODatabaseContext.h is in libsope-dev 2.2.17-1build2.
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EODatabaseContext.h
Copyright (C) 1996 Free Software Foundation, Inc.
Author: Mircea Oancea <mircea@jupiter.elcom.pub.ro>
Date: 1996
This file is part of the GNUstep Database Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; see the file COPYING.LIB.
If not, write to the Free Software Foundation,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __EODatabaseContext_h__
#define __EODatabaseContext_h__
#import <Foundation/NSObject.h>
#import <GDLAccess/EODatabase.h>
@class NSArray, NSMutableArray, NSDictionary, NSMutableDictionary;
@class NSString, NSMutableString;
@class EOAdaptorContext;
@class EOEntity;
@class EOObjectUniquer, EODatabase, EODatabaseContext, EODatabaseChannel;
typedef enum {
EOUpdateWithOptimisticLocking,
EOUpdateWithPessimisticLocking,
EOUpdateWithNoLocking,
EONoUpdate,
} EOUpdateStrategy;
struct _EOTransactionScope;
extern NSString *EODatabaseContextWillBeginTransactionName;
extern NSString *EODatabaseContextDidBeginTransactionName;
extern NSString *EODatabaseContextWillRollbackTransactionName;
extern NSString *EODatabaseContextDidRollbackTransactionName;
extern NSString *EODatabaseContextWillCommitTransactionName;
extern NSString *EODatabaseContextDidCommitTransactionName;
struct EODatabaseContextModificationQueue;
@interface EODatabaseContext : NSObject < EOObjectRegistry >
//EOCooperatingObjectStore < EOObjectRegistry >
{
EOAdaptorContext *adaptorContext;
EODatabase *database;
NSMutableArray *channels;
EOUpdateStrategy updateStrategy;
id coordinator;
id delegate; /* non-retained */
struct _EOTransactionScope *transactionStackTop;
int transactionNestingLevel;
// These fields should be in a bitfield but are ivars for debug purposes
BOOL isKeepingSnapshots;
BOOL isUniquingObjects;
/* modified objects */
struct EODatabaseContextModificationQueue *ops;
/* statistics */
unsigned int txBeginCount;
unsigned int txCommitCount;
unsigned int txRollbackCount;
}
// Initializing instances
- (id)initWithDatabase:(EODatabase *)aDatabase;
/* accessors */
- (void)setDelegate:(id)_delegate;
- (id)delegate;
- (EODatabase *)database;
// Getting the adaptor context
- (EOAdaptorContext*)adaptorContext;
// Finding channels
- (BOOL)hasBusyChannels;
- (BOOL)hasOpenChannels;
- (NSArray *)channels;
- (id)createChannel;
// Controlling transactions
- (BOOL)beginTransaction;
- (BOOL)commitTransaction;
- (BOOL)rollbackTransaction;
// Notifying of other transactions
- (void)transactionDidBegin;
- (void)transactionDidCommit;
- (void)transactionDidRollback;
// Nesting transactions
- (BOOL)canNestTransactions;
- (unsigned)transactionNestingLevel;
// Setting the update strategy
- (void)setUpdateStrategy:(EOUpdateStrategy)aStrategy;
- (EOUpdateStrategy)updateStrategy;
- (BOOL)keepsSnapshots;
// Handle Objects
- (void)recordLockedObject:(id)anObj;
- (BOOL)isObjectLocked:(id)anObj;
- (void)recordUpdatedObject:(id)anObj;
- (BOOL)isObjectUpdated:(id)anObj;
@end /* EODatabaseContext */
@interface EODatabaseContext(Statistics)
- (unsigned int)transactionBeginCount;
- (unsigned int)transactionCommitCount;
- (unsigned int)transactionRollbackCount;
@end
/*
* Methods used by database classess internally
*/
@interface EODatabaseContext(Private)
- (void)channelDidInit:(id)aChannel;
- (void)channelWillDealloc:(id)aChannel;
- (void)privateBeginTransaction;
- (void)privateCommitTransaction;
- (void)privateRollbackTransaction;
@end
@class EOModel;
@interface EODatabaseContext(NewInEOF2)
+ (void)setContextClassToRegister:(Class)_cclass;
+ (Class)contextClassToRegister;
#if 0
+ (EODatabaseContext *)registeredDatabaseContextForModel:(EOModel *)_model
editingContext:(id)_ec;
- (id)coordinator;
#endif
/* managing channels */
- (EODatabaseChannel *)availableChannel;
- (NSArray *)registeredChannels;
- (void)registerChannel:(EODatabaseChannel *)_channel;
- (void)unregisterChannel:(EODatabaseChannel *)_channel;
@end
@class EOFetchSpecification;
@interface NSObject(EOF2DelegateMethods)
- (BOOL)databaseContext:(EODatabaseContext *)_ctx
shouldSelectObjectsWithFetchSpecification:(EOFetchSpecification *)_fspec
databaseChannel:(EODatabaseChannel *)_channel;
- (void)databaseContext:(EODatabaseContext *)_ctx
didSelectObjectsWithFetchSpecification:(EOFetchSpecification *)_fspec
databaseChannel:(EODatabaseChannel *)_channel;
- (BOOL)databaseContext:(EODatabaseContext *)_ctx
shouldUsePessimisticLockWithFetchSpecification:(EOFetchSpecification *)_fspec
databaseChannel:(EODatabaseChannel *)_channel;
@end
#endif /* __EODatabaseContext_h__ */
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