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/*
 * 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(); }





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