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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <Foundation/Foundation.h>
#import "FIRDatabaseReference.h"
#import "FNode.h"
#import "FIndexedNode.h"
@interface FChange : NSObject
@property (nonatomic, readonly) FIRDataEventType type;
@property (nonatomic, strong, readonly) FIndexedNode *indexedNode;
@property (nonatomic, strong, readonly) NSString *childKey;
@property (nonatomic, strong, readonly) NSString *prevKey;
@property (nonatomic, strong, readonly) FIndexedNode *oldIndexedNode;
- (id)initWithType:(FIRDataEventType)type indexedNode:(FIndexedNode *)indexedNode;
- (id)initWithType:(FIRDataEventType)type indexedNode:(FIndexedNode *)indexedNode childKey:(NSString *)childKey;
- (id)initWithType:(FIRDataEventType)type
indexedNode:(FIndexedNode *)indexedNode
childKey:(NSString *)childKey
oldIndexedNode:(FIndexedNode *)oldIndexedNode;
- (FChange *) changeWithPrevKey:(NSString *)prevKey;
@end
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