1   /*
2    * Copyright (C) 2012 The Guava Authors
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    * http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package com.google.common.cache;
18  
19  /**
20   * GWT emulated version of LongAdder.
21   *
22   * @author Charles Fry
23   */
24  class LongAdder implements LongAddable {
25  
26    private long value;
27  
28    public void increment() {
29      value++;
30    }
31  
32    public void add(long x) {
33      value += x;
34    }
35  
36    public long sum() {
37      return value;
38    }
39  
40  }