Flusher.java

/**
 * Copyright 2009 The Apache Software Foundation
 *
 * 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.regionserver.ccindex;

import java.io.IOException;
import java.util.TimerTask;
/**
 * 
 * If you set table's replica number to one, 
 * the memory cache of table should be flush to HDFS more frequently.
 *
 */
public class Flusher extends TimerTask{
	IndexedRegion r;
	Flusher(IndexedRegion r)
	{
		this.r=r;
	}
	public void run() 
	{
		// TODO Auto-generated method stub
		try {
			if(r!=null)
			r.flushcache();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
}