metrics/src/main/java/org/apache/omid/metrics/Counter.java

/*
 * 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.omid.metrics;

public interface Counter extends Metric {

    /**
     * Increment the counter by one.
     */
    void inc();

    /**
     * Increment the counter by {@code n}.
     *
     * @param n the amount by which the counter will be increased
     */
    void inc(long n);

    /**
     * Decrement the counter by one.
     */
    void dec();

    /**
     * Decrement the counter by {@code n}.
     *
     * @param n the amount by which the counter will be decreased
     */
    void dec(long n);

}