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.util;
19
20 import org.apache.hadoop.hbase.classification.InterfaceAudience;
21
22 /**
23 * Mainly used as keys for HashMap.
24 */
25 @InterfaceAudience.Private
26 public final class ImmutableByteArray {
27
28 private final byte[] b;
29
30 private ImmutableByteArray(byte[] b) {
31 this.b = b;
32 }
33
34 @Override
35 public int hashCode() {
36 return Bytes.hashCode(b);
37 }
38
39 @Override
40 public boolean equals(Object obj) {
41 if (obj == null || obj.getClass() != ImmutableByteArray.class) {
42 return false;
43 }
44 return Bytes.equals(b, ((ImmutableByteArray) obj).b);
45 }
46
47 public static ImmutableByteArray wrap(byte[] b) {
48 return new ImmutableByteArray(b);
49 }
50
51 public String toStringUtf8() {
52 return Bytes.toString(b);
53 }
54 }