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Diffstat (limited to 'Firestore/core/src/firebase/firestore/model/snapshot_version.h')
-rw-r--r-- | Firestore/core/src/firebase/firestore/model/snapshot_version.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/Firestore/core/src/firebase/firestore/model/snapshot_version.h b/Firestore/core/src/firebase/firestore/model/snapshot_version.h new file mode 100644 index 0000000..70f6f4a --- /dev/null +++ b/Firestore/core/src/firebase/firestore/model/snapshot_version.h @@ -0,0 +1,74 @@ +/* + * Copyright 2018 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. + */ + +#ifndef FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_SNAPSHOT_VERSION_H_ +#define FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_SNAPSHOT_VERSION_H_ + +#include "Firestore/core/src/firebase/firestore/model/timestamp.h" + +namespace firebase { +namespace firestore { +namespace model { + +/** + * A version of a document in Firestore. This corresponds to the version + * timestamp, such as update_time or read_time. + */ +class SnapshotVersion { + public: + explicit SnapshotVersion(const Timestamp& timestamp); + + const Timestamp& timestamp() const { + return timestamp_; + } + + /** Creates a new version that is smaller than all other versions. */ + static const SnapshotVersion& None(); + + private: + Timestamp timestamp_; +}; + +/** Compares against another SnapshotVersion. */ +inline bool operator<(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { + return lhs.timestamp() < rhs.timestamp(); +} + +inline bool operator>(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { + return lhs.timestamp() > rhs.timestamp(); +} + +inline bool operator>=(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { + return lhs.timestamp() >= rhs.timestamp(); +} + +inline bool operator<=(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { + return lhs.timestamp() <= rhs.timestamp(); +} + +inline bool operator!=(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { + return lhs.timestamp() != rhs.timestamp(); +} + +inline bool operator==(const SnapshotVersion& lhs, const SnapshotVersion& rhs) { + return lhs.timestamp() == rhs.timestamp(); +} + +} // namespace model +} // namespace firestore +} // namespace firebase + +#endif // FIRESTORE_CORE_SRC_FIREBASE_FIRESTORE_MODEL_SNAPSHOT_VERSION_H_ |