| /* |
| * 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.geode.internal.cache.eviction; |
| |
| import org.apache.geode.internal.cache.BucketRegion; |
| import org.apache.geode.internal.cache.versions.RegionVersionVector; |
| |
| public interface EvictionList { |
| |
| void closeStats(); |
| |
| /** |
| * Adds a new eviction node for the entry between the current tail and head of the list. |
| */ |
| void appendEntry(EvictionNode evictionNode); |
| |
| /** |
| * Returns the Entry that is considered least recently used. The entry will no longer be in the |
| * pipe (unless it is the last empty marker). |
| */ |
| EvictableEntry getEvictableEntry(); |
| |
| /** |
| * remove an entry from the list |
| */ |
| void destroyEntry(EvictionNode evictionNode); |
| |
| /** |
| * Returns the eviction counters for this list. |
| */ |
| EvictionCounters getStatistics(); |
| |
| /** |
| * called when an LRU map is cleared... resets stats and releases prev and next. |
| */ |
| void clear(RegionVersionVector regionVersionVector, BucketRegion bucketRegion); |
| |
| /** |
| * Returns the number of EvictionNodes in the EvictionList. |
| */ |
| int size(); |
| |
| void incrementRecentlyUsed(); |
| } |