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Diffstat (limited to 'Firestore/Source/Public/FIRTransaction.h')
-rw-r--r-- | Firestore/Source/Public/FIRTransaction.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/Firestore/Source/Public/FIRTransaction.h b/Firestore/Source/Public/FIRTransaction.h new file mode 100644 index 0000000..68e4600 --- /dev/null +++ b/Firestore/Source/Public/FIRTransaction.h @@ -0,0 +1,106 @@ +/* + * 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 "FIRFirestoreSwiftNameSupport.h" + +NS_ASSUME_NONNULL_BEGIN + +@class FIRDocumentReference; +@class FIRDocumentSnapshot; +@class FIRSetOptions; + +/** + * `FIRTransaction` provides methods to read and write data within a transaction. + * + * @see FIRFirestore#transaction:completion: + */ +FIR_SWIFT_NAME(Transaction) +@interface FIRTransaction : NSObject + +/** */ +- (id)init __attribute__((unavailable("FIRTransaction cannot be created directly."))); + +/** + * Writes to the document referred to by `document`. If the document doesn't yet exist, + * this method creates it and then sets the data. If the document exists, this method overwrites + * the document data with the new values. + * + * @param data An `NSDictionary` that contains the fields and data to write to the document. + * @param document A reference to the document whose data should be overwritten. + * @return This `FIRTransaction` instance. Used for chaining method calls. + */ +// clang-format off +- (FIRTransaction *)setData:(NSDictionary<NSString *, id> *)data + forDocument:(FIRDocumentReference *)document + FIR_SWIFT_NAME(setData(_:forDocument:)); +// clang-format on + +/** + * Writes to the document referred to by `document`. If the document doesn't yet exist, + * this method creates it and then sets the data. If you pass `FIRSetOptions`, the provided data + * will be merged into an existing document. + * + * @param data An `NSDictionary` that contains the fields and data to write to the document. + * @param document A reference to the document whose data should be overwritten. + * @param options A `FIRSetOptions` used to configure the set behavior. + * @return This `FIRTransaction` instance. Used for chaining method calls. + */ +// clang-format off +- (FIRTransaction *)setData:(NSDictionary<NSString *, id> *)data + forDocument:(FIRDocumentReference *)document + options:(FIRSetOptions *)options + FIR_SWIFT_NAME(setData(_:forDocument:options:)); +// clang-format on + +/** + * Updates fields in the document referred to by `document`. + * If the document does not exist, the transaction will fail. + * + * @param fields An `NSDictionary` containing the fields (expressed as an `NSString` or + * `FIRFieldPath`) and values with which to update the document. + * @param document A reference to the document whose data should be updated. + * @return This `FIRTransaction` instance. Used for chaining method calls. + */ +// clang-format off +- (FIRTransaction *)updateData:(NSDictionary<id, id> *)fields + forDocument:(FIRDocumentReference *)document + FIR_SWIFT_NAME(updateData(_:forDocument:)); +// clang-format on + +/** + * Deletes the document referred to by `document`. + * + * @param document A reference to the document that should be deleted. + * @return This `FIRTransaction` instance. Used for chaining method calls. + */ +- (FIRTransaction *)deleteDocument:(FIRDocumentReference *)document + FIR_SWIFT_NAME(deleteDocument(_:)); + +/** + * Reads the document referenced by `document`. + * + * @param document A reference to the document to be read. + * @param error An out parameter to capture an error, if one occurred. + */ +- (FIRDocumentSnapshot *_Nullable)getDocument:(FIRDocumentReference *)document + error:(NSError *__autoreleasing *)error + FIR_SWIFT_NAME(getDocument(_:)); + +@end + +NS_ASSUME_NONNULL_END |