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/*
* Copyright 2010 Google Inc. All Rights Reserved.
*
* 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 mssql.googlecode.concurrentlinkedhashmap;
/**
* A class that can determine the weight of a value. The total weight threshold
* is used to determine when an eviction is required.
*
* @author [email protected] (Ben Manes)
* @see
* http://code.google.com/p/concurrentlinkedhashmap/
*/
public interface Weigher {
/**
* Measures an object's weight to determine how many units of capacity that
* the value consumes. A value must consume a minimum of one unit.
*
* @param value the object to weigh
* @return the object's weight
*/
int weightOf(V value);
}