1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.compress.harmony.unpack200.bytecode;
18
19 import java.util.List;
20
21 /**
22 * Method constant pool entry.
23 */
24 public class CPMethod extends CPMember {
25
26 private boolean hashCodeComputed;
27
28 private int cachedHashCode;
29
30 public CPMethod(final CPUTF8 name, final CPUTF8 descriptor, final long flags, final List<Attribute> attributes) {
31 super(name, descriptor, flags, attributes);
32 }
33
34 private void generateHashCode() {
35 hashCodeComputed = true;
36 final int PRIME = 31;
37 int result = 1;
38 result = PRIME * result + name.hashCode();
39 result = PRIME * result + descriptor.hashCode();
40 cachedHashCode = result;
41 }
42
43 @Override
44 public int hashCode() {
45 if (!hashCodeComputed) {
46 generateHashCode();
47 }
48 return cachedHashCode;
49 }
50
51 @Override
52 public String toString() {
53 return "Method: " + name + "(" + descriptor + ")";
54 }
55
56 }