Coverage Summary for Class: Count (com.google.common.collect)

1 /*
2  * Copyright (C) 2011 The Guava Authors
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
5  * in compliance with the License. You may obtain a copy of the License at
6  *
7  * http://www.apache.org/licenses/LICENSE-2.0
8  *
9  * Unless required by applicable law or agreed to in writing, software distributed under the
10  * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
11  * express or implied. See the License for the specific language governing permissions and
12  * limitations under the License.
13  */
14 
15 package com.google.common.collect;
16 
17 import com.google.common.annotations.GwtCompatible;
18 import java.io.Serializable;
19 import org.checkerframework.checker.nullness.qual.Nullable;
20 
21 /**
22  * A mutable value of type {@code int}, for multisets to use in tracking counts of values.
23  *
24  * @author Louis Wasserman
25  */
26 @GwtCompatible
27 final class Count implements Serializable {
28   private int value;
29 
30   Count(int value) {
31     this.value = value;
32   }
33 
34   public int get() {
35     return value;
36   }
37 
38   public void add(int delta) {
39     value += delta;
40   }
41 
42   public int addAndGet(int delta) {
43     return value += delta;
44   }
45 
46   public void set(int newValue) {
47     value = newValue;
48   }
49 
50   public int getAndSet(int newValue) {
51     int result = value;
52     value = newValue;
53     return result;
54   }
55 
56   @Override
57   public int hashCode() {
58     return value;
59   }
60 
61   @Override
62   public boolean equals(@Nullable Object obj) {
63     return obj instanceof Count && ((Count) obj).value == value;
64   }
65 
66   @Override
67   public String toString() {
68     return Integer.toString(value);
69   }
70 }