/**
*
* 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.hadoop.hbase.mob;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.HColumnDescriptor;
import org.apache.hadoop.hbase.classification.InterfaceAudience;
import org.apache.hadoop.hbase.io.hfile.CacheConfig;
/**
* The cache configuration for the mob.
*/
@InterfaceAudience.Private
public class MobCacheConfig extends CacheConfig {
private static MobFileCache mobFileCache;
public MobCacheConfig(Configuration conf, HColumnDescriptor family) {
super(conf, family);
instantiateMobFileCache(conf);
}
public MobCacheConfig(Configuration conf) {
super(conf);
instantiateMobFileCache(conf);
}
/**
* Instantiates the MobFileCache.
* @param conf The current configuration.
* @return The current instance of MobFileCache.
*/
public static synchronized MobFileCache instantiateMobFileCache(Configuration conf) {
if (mobFileCache == null) {
mobFileCache = new MobFileCache(conf);
}
return mobFileCache;
}
/**
* Gets the MobFileCache.
* @return The MobFileCache.
*/
public MobFileCache getMobFileCache() {
return mobFileCache;
}
}