/
SharedCounter.java
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/
SharedCounter.java
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/*
* Copyright 2021 IBM Corporation
*
* 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.ibm.watson.kvutils;
import java.io.Closeable;
import java.io.IOException;
/**
* Basic distributed atomic counter.
*/
public interface SharedCounter extends Closeable {
/**
* @return the current value of the counter
* @throws Exception
*/
long getCurrentCount() throws Exception;
/**
* Atomic increment-and-get operation
*
* @return the value if the counter post-increment
* @throws Exception
*/
long getNextCount() throws Exception;
@Override
default void close() throws IOException {}
}