1 /** 2 * Copyright 2010 The Apache Software Foundation 3 * 4 * Licensed to the Apache Software Foundation (ASF) under one 5 * or more contributor license agreements. See the NOTICE file 6 * distributed with this work for additional information 7 * regarding copyright ownership. The ASF licenses this file 8 * to you under the Apache License, Version 2.0 (the 9 * "License"); you may not use this file except in compliance 10 * with the License. You may obtain a copy of the License at 11 * 12 * http://www.apache.org/licenses/LICENSE-2.0 13 * 14 * Unless required by applicable law or agreed to in writing, software 15 * distributed under the License is distributed on an "AS IS" BASIS, 16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 17 * See the License for the specific language governing permissions and 18 * limitations under the License. 19 */ 20 package org.apache.hadoop.hbase.filter; 21 22 import org.apache.hadoop.hbase.util.Bytes; 23 import org.apache.hadoop.io.Writable; 24 25 import java.io.DataInput; 26 import java.io.DataOutput; 27 import java.io.IOException; 28 29 /** Base class, combines Comparable<byte []> and Writable. */ 30 public abstract class WritableByteArrayComparable implements Writable, Comparable<byte[]> { 31 32 byte[] value; 33 34 /** 35 * Nullary constructor, for Writable 36 */ 37 public WritableByteArrayComparable() { } 38 39 /** 40 * Constructor. 41 * @param value the value to compare against 42 */ 43 public WritableByteArrayComparable(byte [] value) { 44 this.value = value; 45 } 46 47 public byte[] getValue() { 48 return value; 49 } 50 51 @Override 52 public void readFields(DataInput in) throws IOException { 53 value = Bytes.readByteArray(in); 54 } 55 56 @Override 57 public void write(DataOutput out) throws IOException { 58 Bytes.writeByteArray(out, value); 59 } 60 61 @Override 62 public int compareTo(byte [] value) { 63 return Bytes.compareTo(this.value, value); 64 } 65 66 }