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use std::borrow::Cow;
use serde::{Deserialize, Serialize};
use garage_util::data::*;
use crate::schema::*;
#[derive(Clone, PartialEq, Eq, Serialize, Deserialize)]
pub struct EmptyKey;
impl SortKey for EmptyKey {
fn sort_key(&self) -> Cow<'_, [u8]> {
Cow::from(&[][..])
}
}
impl PartitionKey for EmptyKey {
fn hash(&self) -> Hash {
[0u8; 32].into()
}
}
#[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq)]
pub enum DeletedFilter {
Any,
Deleted,
NotDeleted,
}
impl DeletedFilter {
pub fn apply(&self, deleted: bool) -> bool {
match self {
DeletedFilter::Any => true,
DeletedFilter::Deleted => deleted,
DeletedFilter::NotDeleted => !deleted,
}
}
}
#[derive(Clone, Copy, Debug, Serialize, Deserialize, PartialEq, Eq)]
pub enum EnumerationOrder {
Forward,
Reverse,
}
impl EnumerationOrder {
pub fn from_reverse(reverse: bool) -> Self {
if reverse {
Self::Reverse
} else {
Self::Forward
}
}
}
impl Default for EnumerationOrder {
fn default() -> Self {
EnumerationOrder::Forward
}
}
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