com.google.common.collect.Count Maven / Gradle / Ivy
Go to download
This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
/*
* Copyright (C) 2011 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
* in compliance with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the
* License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.collect;
import com.google.common.annotations.GwtCompatible;
import java.io.Serializable;
import javax.annotation.CheckForNull;
/**
* A mutable value of type {@code int}, for multisets to use in tracking counts of values.
*
* @author Louis Wasserman
*/
@GwtCompatible
@ElementTypesAreNonnullByDefault
final class Count implements Serializable {
private int value;
Count(int value) {
this.value = value;
}
public int get() {
return value;
}
public void add(int delta) {
value += delta;
}
public int addAndGet(int delta) {
return value += delta;
}
public void set(int newValue) {
value = newValue;
}
public int getAndSet(int newValue) {
int result = value;
value = newValue;
return result;
}
@Override
public int hashCode() {
return value;
}
@Override
public boolean equals(@CheckForNull Object obj) {
return obj instanceof Count && ((Count) obj).value == value;
}
@Override
public String toString() {
return Integer.toString(value);
}
}