| /* |
| * Copyright (C) 2023 The Android Open Source Project |
| * |
| * 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 android.health.connect.datatypes.units; |
| |
| import android.annotation.NonNull; |
| |
| import java.util.Objects; |
| |
| /** Represents a unit of power. Supported units: watts */ |
| public final class Power implements Comparable<Power> { |
| private final double mInWatts; |
| |
| private Power(double value) { |
| mInWatts = value; |
| } |
| |
| /** |
| * Creates a Power object with the specified value in Watts. |
| * |
| * @param value value to be set as watts. |
| */ |
| @NonNull |
| public static Power fromWatts(double value) { |
| return new Power(value); |
| } |
| |
| /** Returns power in watts */ |
| public double getInWatts() { |
| return mInWatts; |
| } |
| |
| /** |
| * Compares this object with the specified object for order. Returns a negative integer, zero, |
| * or a positive integer as this object is less than, equal to, or greater than the specified |
| * object. |
| * |
| * @param other the object to be compared. |
| * @return a negative integer, zero, or a positive integer as this object is less than, equal |
| * to, or greater than the specified object. |
| * @throws NullPointerException if the specified object is null |
| * @throws ClassCastException if the specified object's type prevents it from being compared to |
| * this object. |
| */ |
| @Override |
| public int compareTo(@NonNull Power other) { |
| return Double.compare(this.mInWatts, other.mInWatts); |
| } |
| |
| /** |
| * Indicates whether some other object is "equal to" this one. |
| * |
| * @param object the reference object with which to compare. |
| * @return {@code true} if this object is the same as the object argument; {@code false} |
| * otherwise. |
| */ |
| @Override |
| public boolean equals(Object object) { |
| if (this == object) return true; |
| if (object instanceof Power) { |
| Power other = (Power) object; |
| return this.getInWatts() == other.getInWatts(); |
| } |
| return false; |
| } |
| |
| /** |
| * Returns a hash code value for the object. |
| * |
| * @return a hash code value for this object. |
| */ |
| @Override |
| public int hashCode() { |
| return Objects.hash(this.getInWatts()); |
| } |
| |
| /** |
| * @return a string representation of the object. |
| */ |
| @Override |
| public String toString() { |
| return mInWatts + " watts"; |
| } |
| } |