org.rapidoid.cache.CacheAtom Maven / Gradle / Ivy
/*-
* #%L
* rapidoid-commons
* %%
* Copyright (C) 2014 - 2017 Nikolche Mihajlovski and contributors
* %%
* 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.
* #L%
*/
package org.rapidoid.cache;
import org.rapidoid.annotation.Authors;
import org.rapidoid.annotation.Since;
@Authors("Nikolche Mihajlovski")
@Since("5.3.0")
public interface CacheAtom {
/**
* Returns the cached value, recalculating/reloading it if expired.
*/
V get();
/**
* Retrieves the cached value if it exists, or null otherwise.
*/
V getIfExists();
/**
* Invalidates the cached value.
*/
void invalidate();
/**
* Sets a new cached value.
*/
void set(V value);
}