mirror of
https://github.com/zhigang1992/RestKit.git
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f3c0995d5e
* Removed RestKit from inheritance hierarchy * Mappings are implemented as concrete classes * Mapper is much more flexible & powerful * Much more robust error handling * Serialization is reimplemented as an object mapping operation * Added ability to serialize to JSON natively * Reworked Core Data integration * Simplified the codebase substantially
76 lines
2.7 KiB
Objective-C
76 lines
2.7 KiB
Objective-C
//
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// RKManagedObjectMapping.h
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// RestKit
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//
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// Created by Blake Watters on 5/31/11.
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// Copyright 2011 Two Toasters. All rights reserved.
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//
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#import <CoreData/CoreData.h>
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#import "../ObjectMapping/RKObjectMapping.h"
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@interface RKManagedObjectMapping : RKObjectMapping {
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NSEntityDescription* _entity;
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NSString* _primaryKeyAttribute;
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NSMutableDictionary* _relationshipToPrimaryKeyMappings;
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}
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/**
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Creates a new object mapping targetting the specified Core Data entity
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*/
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+ (RKManagedObjectMapping*)mappingForEntity:(NSEntityDescription*)entity;
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/**
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Creates a new object mapping targetting the Core Data entity with the specified name.
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The entity description is fetched from the current managed object context
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*/
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+ (RKManagedObjectMapping*)mappingForEntityWithName:(NSString*)entityName;
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/**
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The Core Data entity description used for this object mapping
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*/
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@property (nonatomic, readonly) NSEntityDescription* entity;
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/**
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The attribute containing the primary key value for the class. This is consulted by
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RestKit to uniquely identify objects within the store using the primary key in your
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remote backend system.
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*/
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@property (nonatomic, retain) NSString* primaryKeyAttribute;
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/**
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Returns a dictionary containing Core Data relationships and attribute pairs containing
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the primary key for
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*/
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@property (nonatomic, readonly) NSDictionary* relationshipsAndPrimaryKeyAttributes;
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/**
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Instructs RestKit to automatically connect a relationship of the object being mapped by looking up
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the related object by primary key.
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For example, given a Project object associated with a User, where the 'user' relationship is
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specified by a userID property on the managed object:
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[mapping connectRelationship:@"user" withObjectForPrimaryKeyAttribute:@"userID"];
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Will hydrate the 'user' association on the managed object with the object
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in the local object graph having the primary key specified in the managed object's
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userID property.
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In effect, this approach allows foreign key relationships between managed objects
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to be automatically maintained from the server to the underlying Core Data object graph.
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*/
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- (void)connectRelationship:(NSString*)relationshipName withObjectForPrimaryKeyAttribute:(NSString*)primaryKeyAttribute;
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/**
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Connects relationships using the primary key values contained in the specified attribute. This method is
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a short-cut for repeated invocation of `connectRelationship:withObjectForPrimaryKeyAttribute:`.
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@see connectRelationship:withObjectForPrimaryKeyAttribute:
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*/
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- (void)connectRelationshipsWithObjectsForPrimaryKeyAttributes:(NSString*)firstRelationshipName, ... NS_REQUIRES_NIL_TERMINATION;
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- (id)initWithEntity:(NSEntityDescription*)entity;
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@end
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