org.springframework.util.ResponseTimeMonitor Maven / Gradle / Ivy
/*
* Copyright 2002-2005 the original author or 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 org.springframework.util;
/**
* Interface implemented by objects that can provide performance information
* as well as a record of the number of times they are accessed.
*
* Implementing objects must ensure that implementing this interface
* does not compromise thread safety. However, it may be acceptable
* for slight innaccuracies in reported statistics to result from the
* avoidance of synchronization: performance may be well be more important
* than exact reporting, so long as the errors are not likely to be misleading.
*
* @author Rod Johnson
* @since November 21, 2000
*/
public interface ResponseTimeMonitor {
/**
* Return the number of accesses to this resource.
*/
int getAccessCount();
/**
* Return the average response time in milliseconds.
*/
int getAverageResponseTimeMillis();
/**
* Return the best (quickest) response time in milliseconds.
*/
int getBestResponseTimeMillis();
/**
* Return the worst (slowest) response time in milliseconds.
*/
int getWorstResponseTimeMillis();
}