package org.apache.cassandra.cache;
/*
*
* 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.
*
*/
public interface JMXInstrumentedCacheMBean
{
public int getCapacity();
public void setCapacity(int capacity);
public int getSize();
/** total request count since cache creation */
public long getRequests();
/** total cache hit count since cache creation */
public long getHits();
/**
* hits / requests since the last time getHitRate was called. serious telemetry apps should not use this,
* and should instead track the deltas from getHits / getRequests themselves, since those will not be
* affected by multiple users calling it. Provided for convenience only.
*/
public double getRecentHitRate();
}