76 lines
1.6 KiB
Java
76 lines
1.6 KiB
Java
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/*
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* Copyright (C) 2011 The Guava Authors
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
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* in compliance with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under the
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* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
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* express or implied. See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.common.collect;
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import java.io.Serializable;
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import javax.annotation.Nullable;
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import com.google.common.annotations.GwtCompatible;
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/**
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* A mutable value of type {@code int}, for multisets to use in tracking counts
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* of values.
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*
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* @author Louis Wasserman
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*/
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@GwtCompatible
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final class Count implements Serializable {
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private int value;
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Count(int value) {
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this.value = value;
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}
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public int get() {
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return value;
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}
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public int getAndAdd(int delta) {
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int result = value;
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value = result + delta;
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return result;
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}
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public int addAndGet(int delta) {
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return value += delta;
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}
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public void set(int newValue) {
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value = newValue;
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}
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public int getAndSet(int newValue) {
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int result = value;
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value = newValue;
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return result;
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}
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@Override
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public int hashCode() {
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return value;
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}
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@Override
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public boolean equals(@Nullable Object obj) {
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return obj instanceof Count && ((Count) obj).value == value;
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}
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@Override
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public String toString() {
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return Integer.toString(value);
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}
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}
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