ResistanceUnit.java

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
 
package org.wpilib.units;
 
import org.wpilib.units.measure.Resistance;

public final class ResistanceUnit extends PerUnit<VoltageUnit, CurrentUnit> {
  private static final CombinatoryUnitCache<VoltageUnit, CurrentUnit, ResistanceUnit> cache =
      new CombinatoryUnitCache<>(ResistanceUnit::new);
 
  ResistanceUnit(VoltageUnit numerator, CurrentUnit denominator) {
    super(
        numerator.isBaseUnit() && denominator.isBaseUnit()
            ? null
            : combine(numerator.getBaseUnit(), denominator.getBaseUnit()),
        numerator,
        denominator);
  }
 
  ResistanceUnit(
      ResistanceUnit baseUnit,
      UnaryFunction toBaseConverter,
      UnaryFunction fromBaseConverter,
      String name,
      String symbol) {
    super(baseUnit, toBaseConverter, fromBaseConverter, name, symbol);
  }

  public static ResistanceUnit combine(VoltageUnit voltage, CurrentUnit current) {
    return cache.combine(voltage, current);
  }
 
  @Override
  public ResistanceUnit getBaseUnit() {
    return (ResistanceUnit) super.getBaseUnit();
  }
 
  @Override
  public Resistance of(double magnitude) {
    return new Resistance(magnitude, toBaseUnits(magnitude), this);
  }
 
  @Override
  public Resistance ofBaseUnits(double baseUnitMagnitude) {
    return new Resistance(fromBaseUnits(baseUnitMagnitude), baseUnitMagnitude, this);
  }
 
  @Override
  public Resistance zero() {
    return (Resistance) super.zero();
  }
 
  @Override
  public Resistance one() {
    return (Resistance) super.one();
  }

  public <U extends Unit> PerUnit<ResistanceUnit, U> per(U other) {
    return PerUnit.combine(this, other);
  }

  public double convertFrom(double magnitude, ResistanceUnit otherUnit) {
    return fromBaseUnits(otherUnit.toBaseUnits(magnitude));
  }
}