001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.util; 019 020import org.apache.yetus.audience.InterfaceAudience; 021 022/** 023 * Mainly used as keys for HashMap. 024 */ 025@InterfaceAudience.Private 026public final class ImmutableByteArray { 027 028 private final byte[] b; 029 030 private ImmutableByteArray(byte[] b) { 031 this.b = b; 032 } 033 034 @Override 035 public int hashCode() { 036 return Bytes.hashCode(b); 037 } 038 039 @Override 040 public boolean equals(Object obj) { 041 if (obj == null || obj.getClass() != ImmutableByteArray.class) { 042 return false; 043 } 044 return Bytes.equals(b, ((ImmutableByteArray) obj).b); 045 } 046 047 public static ImmutableByteArray wrap(byte[] b) { 048 return new ImmutableByteArray(b); 049 } 050 051 @Override 052 public String toString() { 053 return Bytes.toStringBinary(b); 054 } 055}