/*
* Copyright 2011 the original author or authors.
*
* 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.
*/
package org.gradle.cache.internal;
/**
* Participates in a unit of work that accesses the cache. Implementations do not need to be thread-safe and are accessed by a single thread at a time.
*/
public interface UnitOfWorkParticipant {
/**
* Called just after the cache is locked. Called before any work is performed by other threads. This method may access the cache files.
*
* @param currentCacheState the current cache state.
*/
void afterLockAcquire(FileLock.State currentCacheState);
/**
* Called when the cache is due to be unlocked. Call after other threads have completed work. This method may access the cache files.
*/
void finishWork();
/**
* Called just before the cache is to be unlocked. Called after all work has been completed, and after {@link #finishWork()} has completed.
* This method should not modify the cache files.
*/
void beforeLockRelease(FileLock.State currentCacheState);
}