fabaccess-bffh/bffhd/db/index.rs

34 lines
1.1 KiB
Rust
Raw Normal View History

2022-11-16 12:57:41 +01:00
/*
* Copyright © 2022 RLKM UG (haftungsbeschränkt).
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
use std::marker::PhantomData;
use lmdb::Transaction;
use crate::db;
use crate::db::{Adapter, DB};
pub struct Index<I, A> {
db: DB<A>,
_marker: PhantomData<I>,
}
impl<I: AsRef<[u8]>, A: Adapter> Index<I, A> {
pub fn get<T: Transaction>(
&self, txn: &T, lookup: I,
) -> Result<Option<A::Item>, db::Error> {
self.db.get(txn, lookup)
}
}