1 /* 2 * Copyright (C) 2021 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.server.vcn.util; 18 19 /** 20 * OneWayBoolean is an abstraction for a boolean that MUST only ever be flipped from false to true 21 * 22 * <p>This class allows the providing of a guarantee that a flag will never be flipped back after 23 * being set. 24 * 25 * @hide 26 */ 27 public class OneWayBoolean { 28 private boolean mValue = false; 29 30 /** Get boolean value. */ getValue()31 public boolean getValue() { 32 return mValue; 33 } 34 35 /** Sets the value to true. */ setTrue()36 public void setTrue() { 37 mValue = true; 38 } 39 } 40