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/*
 * Copyright 2017 Google Inc.
 *
 * 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 com.google.firebase.database.collection;

import static com.google.firebase.database.collection.LLRBNode.Color.RED;

public class LLRBRedValueNode extends LLRBValueNode {

  LLRBRedValueNode(K key, V value) {
    super(key, value, LLRBEmptyNode.getInstance(), LLRBEmptyNode.getInstance());
  }

  LLRBRedValueNode(K key, V value, LLRBNode left, LLRBNode right) {
    super(key, value, left, right);
  }

  @Override
  protected Color getColor() {
    return RED;
  }

  @Override
  public boolean isRed() {
    return true;
  }

  @Override
  protected LLRBValueNode copy(K key, V value, LLRBNode left, LLRBNode right) {
    K newKey = key == null ? this.getKey() : key;
    V newValue = value == null ? this.getValue() : value;
    LLRBNode newLeft = left == null ? this.getLeft() : left;
    LLRBNode newRight = right == null ? this.getRight() : right;
    return new LLRBRedValueNode<>(newKey, newValue, newLeft, newRight);
  }
}