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41 lines
1.4 KiB
41 lines
1.4 KiB
// Copyright 2018-2019 Mozilla
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//
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// Licensed under the Apache License, Version 2.0 (the "License"); you may not use
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// this file except in compliance with the License. You may obtain a copy of the
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// License at http://www.apache.org/licenses/LICENSE-2.0
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// Unless required by applicable law or agreed to in writing, software distributed
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// under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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// CONDITIONS OF ANY KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations under the License.
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use id_arena::Id;
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use serde_derive::{Deserialize, Serialize};
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use super::{snapshot::Snapshot, DatabaseFlagsImpl};
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use crate::backend::traits::BackendDatabase;
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#[derive(Debug, Eq, PartialEq, Copy, Clone, Hash)]
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pub struct DatabaseImpl(pub(crate) Id<Database>);
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impl BackendDatabase for DatabaseImpl {}
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#[derive(Debug, Serialize, Deserialize)]
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pub struct Database {
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snapshot: Snapshot,
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}
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impl Database {
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pub(crate) fn new(flags: Option<DatabaseFlagsImpl>, snapshot: Option<Snapshot>) -> Database {
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Database {
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snapshot: snapshot.unwrap_or_else(|| Snapshot::new(flags)),
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}
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}
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pub(crate) fn snapshot(&self) -> Snapshot {
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self.snapshot.clone()
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}
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pub(crate) fn replace(&mut self, snapshot: Snapshot) -> Snapshot {
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std::mem::replace(&mut self.snapshot, snapshot)
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}
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}
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