eu.agrosense.shared.model.UOM Maven / Gradle / Ivy

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/**
 * Copyright (C) 2008-2013 LimeTri. All rights reserved.
 *
 * AgroSense is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * There are special exceptions to the terms and conditions of the GPLv3 as it is applied to
 * this software, see the FLOSS License Exception
 * .
 *
 * AgroSense is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with AgroSense.  If not, see .
 */
package eu.agrosense.shared.model;

/**
 * Unit of measure.
 * 
 * @author johan
 */
public interface UOM {
    
    String PROP_LABEL = "label"; // TODO: need an extra key property if the label will be localized (km/h vs km/u)
    String getLabel();
    
    String PROP_DIMENSION = "dimension";
    Dimension getdDimension();
    
    interface Dimension {
        String PROP_NAME = "name";
        String getName();
    }
    
    interface Converter {
        UOM getFromUOM();
        UOM getToUOM();
        
        double convertForward(double value);
        double convertReverse(double value);
        
        // TODO: either user use stored offset and/or multiplier,
        // or reference to custom computation.
        
    }

}