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 * https://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19 package org.apache.commons.compress.harmony.unpack200.bytecode;
20
21 import java.util.List;
22
23 /**
24 * Method constant pool entry.
25 */
26 public class CPMethod extends CPMember {
27
28 private boolean hashCodeComputed;
29
30 private int cachedHashCode;
31
32 public CPMethod(final CPUTF8 name, final CPUTF8 descriptor, final long flags, final List<Attribute> attributes) {
33 super(name, descriptor, flags, attributes);
34 }
35
36 private void generateHashCode() {
37 hashCodeComputed = true;
38 final int PRIME = 31;
39 int result = 1;
40 result = PRIME * result + name.hashCode();
41 result = PRIME * result + descriptor.hashCode();
42 cachedHashCode = result;
43 }
44
45 @Override
46 public int hashCode() {
47 if (!hashCodeComputed) {
48 generateHashCode();
49 }
50 return cachedHashCode;
51 }
52
53 @Override
54 public String toString() {
55 return "Method: " + name + "(" + descriptor + ")";
56 }
57
58 }