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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.hfile;
19  
20  /**
21   * BlockWithScanInfo is wrapper class for HFileBlock with other attributes. These attributes are
22   * supposed to be much cheaper to be maintained in each caller thread than in HFileBlock itself.
23   */
24  public class BlockWithScanInfo {
25    private final HFileBlock hFileBlock;
26    /**
27     * The first key in the next block following this one in the HFile.
28     * If this key is unknown, this is reference-equal with HConstants.NO_NEXT_INDEXED_KEY
29     */
30    private final byte[] nextIndexedKey;
31  
32    public BlockWithScanInfo(HFileBlock hFileBlock, byte[] nextIndexedKey) {
33      this.hFileBlock = hFileBlock;
34      this.nextIndexedKey = nextIndexedKey;
35    }
36  
37    public HFileBlock getHFileBlock() {
38      return hFileBlock;
39    }
40  
41    public byte[] getNextIndexedKey() {
42      return nextIndexedKey;
43    }
44  }