org.apache.jena.fuseki.server.Counter Maven / Gradle / Ivy

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 org.apache.jena.fuseki.server;

import java.util.concurrent.atomic.AtomicLong ;

/** A statistics counter */
public class Counter
{
    private AtomicLong counter = new AtomicLong(0) ;
    
    public Counter()    {}
    
    public void inc()   { counter.incrementAndGet() ; } 
    public void dec()   { counter.decrementAndGet() ; } 
    public long value() { return counter.get() ; } 
}