1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 package org.apache.hadoop.hbase.io; 19 import org.apache.hadoop.hbase.classification.InterfaceAudience; 20 import org.apache.hadoop.hbase.classification.InterfaceStability; 21 22 import org.apache.hadoop.hbase.CellScanner; 23 24 /** 25 * A CellScanner that knows its size in memory in bytes. 26 * Used playing the CellScanner into an in-memory buffer; knowing the size ahead of time saves 27 * on background buffer resizings. 28 */ 29 @InterfaceAudience.Private 30 @InterfaceStability.Unstable 31 public interface SizedCellScanner extends CellScanner, HeapSize {}