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Server functionality for HBase
/*
* 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.quotas;
import org.apache.hadoop.hbase.io.HeapSize;
import org.apache.yetus.audience.InterfaceAudience;
/**
* Interface that encapsulates optionally sending a Region's size to the master.
*/
@InterfaceAudience.Private
public interface RegionSize extends HeapSize {
/**
* Updates the size of the Region.
*
* @param newSize the new size of the Region
* @return {@code this}
*/
RegionSize setSize(long newSize);
/**
* Atomically adds the provided {@code delta} to the region size.
*
* @param delta The change in size in bytes of the region.
* @return {@code this}
*/
RegionSize incrementSize(long delta);
/**
* Returns the size of the region.
*
* @return The size in bytes.
*/
long getSize();
}