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mod errors;
mod memory;
#[cfg(feature = "rocksdb")]
pub mod rocks;
#[cfg(feature = "sled")]
pub mod sled;
pub use errors::Error;
pub use memory::MemoryDB;
pub trait Store {
fn read<K>(&self, key: K) -> Result<Option<Vec<u8>>, Error>
where
K: AsRef<[u8]>;
fn write<K, V>(&self, key: K, value: V) -> Result<(), Error>
where
K: AsRef<[u8]>,
V: AsRef<[u8]>;
fn delete<K>(&self, key: K) -> Result<(), Error>
where
K: AsRef<[u8]>;
fn exists<K>(&self, key: K) -> Result<bool, Error>
where
K: AsRef<[u8]>;
fn bulk_read<K>(&self, keys: &[K]) -> Result<Vec<Option<Vec<u8>>>, Error>
where
K: AsRef<[u8]>,
{
keys.iter().map(|key| self.read(key)).collect()
}
fn bulk_write<K, V>(&self, values: &[(K, V)]) -> Result<(), Error>
where
K: AsRef<[u8]>,
V: AsRef<[u8]>,
{
values
.iter()
.try_for_each(|(key, value)| self.write(key, value))
}
fn bulk_delete<K>(&self, keys: &[K]) -> Result<(), Error>
where
K: AsRef<[u8]>,
{
keys.iter().try_for_each(|key| self.delete(key))
}
}