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/*
 * Copyright 2015-2016 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 kim.sesame.framework.locks;

/**
 * A {@link LockRegistry} implementing this interface supports the removal of aged locks
 * that are not currently locked.
 *
 * @author Gary Russell
 * @since 4.2
 *
 */
public interface ExpirableLockRegistry extends LockRegistry {
	/**
	 * 本地锁超时时间
	 * 默认1小时
	 */
	long DEFAULT_EXPIRE_UNUSED_OLDER_THEN_TIME = 1000 * 60 * 60;

	/**
	 * 获取默认本地锁超时失效时间
	 * @return
	 */
	default long getDefaultExpireUnusedOlderThanTime(){
		return DEFAULT_EXPIRE_UNUSED_OLDER_THEN_TIME;
	}

	/**
	 * Remove locks last acquired more than 'age' ago that are not currently locked.
	 * @param age the time since the lock was last obtained.
	 * @throws IllegalStateException if the registry configuration does not support this feature.
	 */
	void expireUnusedOlderThan(long age);




}