50 lines
1.5 KiB
Objective-C
50 lines
1.5 KiB
Objective-C
/*
|
|
* 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>
|
|
|
|
NS_ASSUME_NONNULL_BEGIN
|
|
|
|
/**
|
|
* A `FieldPath` refers to a field in a document. The path may consist of a single field name
|
|
* (referring to a top level field in the document), or a list of field names (referring to a nested
|
|
* field in the document).
|
|
*/
|
|
NS_SWIFT_NAME(FieldPath)
|
|
@interface FIRFieldPath : NSObject <NSCopying>
|
|
|
|
/** :nodoc: */
|
|
- (instancetype)init NS_UNAVAILABLE;
|
|
|
|
/**
|
|
* Creates a `FieldPath` from the provided field names. If more than one field name is provided, the
|
|
* path will point to a nested field in a document.
|
|
*
|
|
* @param fieldNames A list of field names.
|
|
* @return A `FieldPath` that points to a field location in a document.
|
|
*/
|
|
- (instancetype)initWithFields:(NSArray<NSString *> *)fieldNames NS_SWIFT_NAME(init(_:));
|
|
|
|
/**
|
|
* A special sentinel `FieldPath` to refer to the ID of a document. It can be used in queries to
|
|
* sort or filter by the document ID.
|
|
*/
|
|
+ (instancetype)documentID;
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|