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/*
 * Copyright Terracotta, Inc.
 *
 * 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.ehcache.config;

/**
 * Represents a unit in which quantity is expressed in a {@link SizedResourcePool}.
 */
public interface ResourceUnit {

  /**
   * Compares {@code thisSize} in this unit to {@code thatSize} in {@code thatUnit}.
   * 

* Returns 1, 0, or -1 if the {@code thisSize} of {@code this} is greater than, * equal to, or less than {@code thatSize} of {@code thatUnit} * respectively. * * @param thisSize size in this unit * @param thatSize size in {@code thatUnit} * @param thatUnit other {@code ResourceUnit} * * @return as per the {@link Comparable#compareTo(Object) compareTo} contract * * @throws IllegalArgumentException if the units are not comparable */ int compareTo(long thisSize, long thatSize, ResourceUnit thatUnit) throws IllegalArgumentException; }





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