| /* |
| * 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.management; |
| |
| import java.beans.ConstructorProperties; |
| |
| import org.apache.geode.cache.EvictionAction; |
| import org.apache.geode.cache.EvictionAlgorithm; |
| import org.apache.geode.cache.EvictionAttributes; |
| import org.apache.geode.cache.Region; |
| |
| /** |
| * Composite data type used to distribute the eviction attributes for a {@link Region}. |
| * |
| * @since GemFire 7.0 |
| */ |
| |
| public class EvictionAttributesData { |
| |
| /** |
| * Algorithm used for eviction |
| */ |
| private String algorithm; |
| |
| /** |
| * Maximum entries in Region before eviction starts |
| */ |
| private Integer maximum; |
| |
| /** |
| * Action to be taken if entries reaches maximum value |
| */ |
| private String action; |
| |
| /** |
| * |
| * This constructor is to be used by internal JMX framework only. User should not try to create an |
| * instance of this class. |
| */ |
| @ConstructorProperties({"algorithm", "maximum", "action" |
| |
| }) |
| public EvictionAttributesData(String algorithm, Integer maximum, String action) { |
| this.algorithm = algorithm; |
| this.maximum = maximum; |
| this.action = action; |
| } |
| |
| /** |
| * Returns the algorithm (policy) used to determine which entries will be evicted. |
| */ |
| public String getAlgorithm() { |
| return algorithm; |
| } |
| |
| /** |
| * The unit of this value is determined by the definition of the {@link EvictionAlgorithm} set by |
| * one of the creation methods e.g. {@link EvictionAttributes#createLRUEntryAttributes()} |
| * |
| * For algorithm LRU HEAP null will be returned |
| * |
| * @return maximum value used by the {@link EvictionAlgorithm} which determines when the |
| * {@link EvictionAction} is performed. |
| */ |
| public Integer getMaximum() { |
| return maximum; |
| } |
| |
| /** |
| * Returns the action that will be taken on entries that are evicted. |
| */ |
| public String getAction() { |
| return action; |
| } |
| |
| /** |
| * String representation of EvictionAttributesData |
| */ |
| @Override |
| public String toString() { |
| |
| final StringBuilder buffer = new StringBuilder(128); |
| buffer.append("EvictionAttributesData ["); |
| |
| buffer.append("algorithm=").append(this.getAlgorithm()); |
| if (!this.getAlgorithm().equals(EvictionAlgorithm.NONE.toString())) { |
| buffer.append(", action=").append(this.getAction()); |
| if (!this.getAlgorithm().equals(EvictionAlgorithm.LRU_HEAP.toString())) { |
| buffer.append(", maximum=").append(this.getMaximum()); |
| } |
| } |
| buffer.append("]"); |
| return buffer.toString(); |
| } |
| |
| |
| } |