| /** |
| * 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.apache.aurora.common.quantity; |
| |
| /** |
| * Represents a unit hierarchy for a given unit of measure; eg: time. Instances represent specific |
| * units from the hierarchy; eg: seconds. |
| * |
| * @param <U> the type of the concrete unit implementation |
| * |
| * @author John Sirois |
| */ |
| public interface Unit<U extends Unit<U>> { |
| |
| /** |
| * Returns the weight of this unit relative to other units in the same hierarchy. Typically the |
| * smallest unit in the hierarchy returns 1, but this need not be the case. It is only required |
| * that each unit of the hierarchy return a multiplier relative to a common base unit for the |
| * hierarchy. |
| */ |
| double multiplier(); |
| } |