001package org.cache2k;
002
003/*
004 * #%L
005 * cache2k API only package
006 * %%
007 * Copyright (C) 2000 - 2016 headissue GmbH, Munich
008 * %%
009 * This program is free software: you can redistribute it and/or modify
010 * it under the terms of the GNU General Public License as
011 * published by the Free Software Foundation, either version 3 of the 
012 * License, or (at your option) any later version.
013 * 
014 * This program is distributed in the hope that it will be useful,
015 * but WITHOUT ANY WARRANTY; without even the implied warranty of
016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
017 * GNU General Public License for more details.
018 * 
019 * You should have received a copy of the GNU General Public 
020 * License along with this program.  If not, see
021 * <http://www.gnu.org/licenses/gpl-3.0.html>.
022 * #L%
023 */
024
025/**
026 * If object implements {@link ValueWithNextRefreshTime} then the next refresh time
027 * is fetched from the object. If not, the default linger time is used by the cache.
028 *
029 * @author Jens Wilke; created: 2013-05-02
030 * @deprecated Use {@link org.cache2k.ValueWithExpiryTime#AUTO_EXPIRY}
031 */
032public final class AutoEntryRefreshController<T> implements RefreshController<T> {
033
034  public static final AutoEntryRefreshController INSTANCE = new AutoEntryRefreshController();
035
036  @Override
037  public long calculateNextRefreshTime(
038    T _oldObject,
039    T _newObject,
040    long _timeOfLastRefresh, long now) {
041    if (_newObject instanceof ValueWithNextRefreshTime) {
042      return ((ValueWithNextRefreshTime) _newObject).getNextRefreshTime();
043    }
044    return Long.MAX_VALUE;
045  }
046
047}