/*
* Copyright 2011 Red Hat, Inc. and/or its affiliates.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
package org.infinispan.configuration.cache;
import org.infinispan.eviction.EvictionStrategy;
import org.infinispan.eviction.EvictionThreadPolicy;
/**
* Controls the eviction settings for the cache.
*/
public class EvictionConfiguration {
private final int maxEntries;
private final EvictionStrategy strategy;
private final EvictionThreadPolicy threadPolicy;
EvictionConfiguration(int maxEntries, EvictionStrategy strategy, EvictionThreadPolicy threadPolicy) {
this.maxEntries = maxEntries;
this.strategy = strategy;
this.threadPolicy = threadPolicy;
}
/**
* Eviction strategy. Available options are 'UNORDERED', 'LRU', 'LIRS' and 'NONE' (to disable
* eviction).
*/
public EvictionStrategy strategy() {
return strategy;
}
/**
* Threading policy for eviction.
*/
public EvictionThreadPolicy threadPolicy() {
return threadPolicy;
}
/**
* Maximum number of entries in a cache instance. Cache size is guaranteed not to exceed upper
* limit specified by max entries. However, due to the nature of eviction it is unlikely to ever
* be exactly maximum number of entries specified here.
*/
public int maxEntries() {
return maxEntries;
}
@Override
public String toString() {
return "EvictionConfiguration{" +
"maxEntries=" + maxEntries +
", strategy=" + strategy +
", threadPolicy=" + threadPolicy +
'}';
}
@Override
public boolean equals(Object o) {
if (this == o) return true;
if (o == null || getClass() != o.getClass()) return false;
EvictionConfiguration that = (EvictionConfiguration) o;
if (maxEntries != that.maxEntries) return false;
if (strategy != that.strategy) return false;
if (threadPolicy != that.threadPolicy) return false;
return true;
}
@Override
public int hashCode() {
int result = maxEntries;
result = 31 * result + (strategy != null ? strategy.hashCode() : 0);
result = 31 * result + (threadPolicy != null ? threadPolicy.hashCode() : 0);
return result;
}
}