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/**
* Copyright (C) 2020 Adrien Hopkins
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package sevenUnits.unit;
import java.util.function.DoubleFunction;
import java.util.function.ToDoubleFunction;
import sevenUnits.utils.NameSymbol;
import sevenUnits.utils.ObjectProduct;
/**
* A unitlike form that converts using two conversion functions.
*
* @since 2020-09-07
*/
final class FunctionalUnitlike<V> extends Unitlike<V> {
/**
* A function that accepts a value in the unitlike form's base and returns a
* value in the unitlike form.
*
* @since 2020-09-07
*/
private final DoubleFunction<V> converterFrom;
/**
* A function that accepts a value in the unitlike form and returns a value
* in the unitlike form's base.
*/
private final ToDoubleFunction<V> converterTo;
/**
* Creates the {@code FunctionalUnitlike}.
*
* @param base unitlike form's base
* @param converterFrom function that accepts a value in the unitlike form's
* base and returns a value in the unitlike form.
* @param converterTo function that accepts a value in the unitlike form
* and returns a value in the unitlike form's base.
* @throws NullPointerException if any argument is null
* @since 2019-05-22
*/
protected FunctionalUnitlike(ObjectProduct<BaseUnit> unitBase, NameSymbol ns,
DoubleFunction<V> converterFrom, ToDoubleFunction<V> converterTo) {
super(unitBase, ns);
this.converterFrom = converterFrom;
this.converterTo = converterTo;
}
@Override
protected V convertFromBase(double value) {
return this.converterFrom.apply(value);
}
@Override
protected double convertToBase(V value) {
return this.converterTo.applyAsDouble(value);
}
}
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