39 lines
1.5 KiB
Rust
39 lines
1.5 KiB
Rust
// Copyright 2018 Mozilla
|
|
//
|
|
// 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.
|
|
|
|
/// Cache traits.
|
|
|
|
use std::collections::{
|
|
BTreeSet,
|
|
};
|
|
|
|
use ::{
|
|
Entid,
|
|
Schema,
|
|
TypedValue,
|
|
};
|
|
|
|
pub trait CachedAttributes {
|
|
fn is_attribute_cached_reverse(&self, entid: Entid) -> bool;
|
|
fn is_attribute_cached_forward(&self, entid: Entid) -> bool;
|
|
fn has_cached_attributes(&self) -> bool;
|
|
|
|
fn get_values_for_entid(&self, schema: &Schema, attribute: Entid, entid: Entid) -> Option<&Vec<TypedValue>>;
|
|
fn get_value_for_entid(&self, schema: &Schema, attribute: Entid, entid: Entid) -> Option<&TypedValue>;
|
|
|
|
/// Reverse lookup.
|
|
fn get_entid_for_value(&self, attribute: Entid, value: &TypedValue) -> Option<Entid>;
|
|
fn get_entids_for_value(&self, attribute: Entid, value: &TypedValue) -> Option<&BTreeSet<Entid>>;
|
|
}
|
|
|
|
pub trait UpdateableCache<E> {
|
|
fn update<I>(&mut self, schema: &Schema, retractions: I, assertions: I) -> Result<(), E>
|
|
where I: Iterator<Item=(Entid, Entid, TypedValue)>;
|
|
}
|