| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.ignite.internal.processors.cache; |
| |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.UUID; |
| import javax.cache.expiry.ExpiryPolicy; |
| import org.apache.ignite.internal.processors.cache.version.GridCacheVersion; |
| import org.apache.ignite.lang.IgniteBiTuple; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Wrapper for {@link ExpiryPolicy} used to track information about cache entries |
| * whose time to live was modified after access. |
| */ |
| public interface IgniteCacheExpiryPolicy { |
| /** |
| * @return TTL. |
| */ |
| public long forCreate(); |
| |
| /** |
| * @return TTL. |
| */ |
| public long forUpdate(); |
| |
| /** |
| * @return TTL. |
| */ |
| public long forAccess(); |
| |
| /** |
| * Callback for ttl update on entry access. |
| * |
| * @param key Entry key. |
| * @param ver Entry version. |
| * @param rdrs Entry readers. |
| */ |
| public void ttlUpdated(KeyCacheObject key, |
| GridCacheVersion ver, |
| @Nullable Collection<UUID> rdrs); |
| |
| /** |
| * Clears information about updated entries. |
| */ |
| public void reset(); |
| |
| /** |
| * @param cnt Entries count. |
| * @return {@code True} if number of entries or readers is greater than given number. |
| */ |
| public boolean readyToFlush(int cnt); |
| |
| /** |
| * @return Entries with TTL updated on access. |
| */ |
| @Nullable public Map<KeyCacheObject, GridCacheVersion> entries(); |
| |
| /** |
| * @return Readers for updated entries. |
| */ |
| @Nullable Map<UUID, Collection<IgniteBiTuple<KeyCacheObject, GridCacheVersion>>> readers(); |
| } |