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• 3.0.0-beta9
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• DefaultNpcFlag.java

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com.github.juliarn.npclib.api.flag.DefaultNpcFlag Maven / Gradle / Ivy

/*
 * This file is part of npc-lib, licensed under the MIT License (MIT).
 *
 * Copyright (c) 2022-2023 Julian M., Pasqual K. and 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 com.github.juliarn.npclib.api.flag;

import com.github.juliarn.npclib.api.util.Util;
import java.util.function.Predicate;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
import org.jetbrains.annotations.UnknownNullability;

final class DefaultNpcFlag implements NpcFlag {

  private final String key;
  private final T defaultValue;
  private final Predicate valueTester;

  public DefaultNpcFlag(@NotNull String key, @Nullable T defaultValue, @NotNull Predicate valueTester) {
    this.key = key;
    this.defaultValue = defaultValue;
    this.valueTester = valueTester;
  }

  @Override
  public @NotNull String key() {
    return this.key;
  }

  @Override
  public @UnknownNullability T defaultValue() {
    return this.defaultValue;
  }

  @Override
  public boolean accepts(@Nullable T value) {
    return this.valueTester.test(value);
  }

  @Override
  public int hashCode() {
    return this.key.hashCode();
  }

  @Override
  public boolean equals(Object obj) {
    return Util.equals(NpcFlag.class, this, obj, (orig, comp) -> orig.key().equals(comp.key()));
  }
}