BlueMap/BlueMapCore/src/main/java/de/bluecolored/bluemap/core/util/Tristate.java

/*
 * This file is part of BlueMap, licensed under the MIT License (MIT).
 *
 * Copyright (c) Blue (Lukas Rieger) <https://bluecolored.de>
 * Copyright (c) contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package de.bluecolored.bluemap.core.util;

import java.util.function.BooleanSupplier;

public enum Tristate {

    TRUE (true),
    UNDEFINED (false) {
        @Override
        public Tristate getOr(Tristate other) {
            return other;
        }

        @Override
        public boolean getOr(BooleanSupplier other) {
            return other.getAsBoolean();
        }

        @Override
        public boolean getOr(boolean defaultValue) {
            return defaultValue;
        }
    },
    FALSE (false);

    private final boolean value;

    Tristate(boolean value ) {
        this.value = value;
    }

    public Tristate getOr(Tristate other) {
        return this;
    }

    public boolean getOr(BooleanSupplier other) {
        return value;
    }

    public boolean getOr(boolean defaultValue) {
        return value;
    }

    @Override
    public String toString() {
        return "Tristate." + name();
    }
}