<?php
/* ============================================================================
 * Copyright 2020 Zindex Software
 *
 * 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.
 * ============================================================================ */

namespace Opis\JsonSchema\KeywordValidators;

use Opis\JsonSchema\KeywordValidator;

abstract class AbstractKeywordValidator implements KeywordValidator
{

    protected ?KeywordValidator $next = null;

    /**
     * @inheritDoc
     */
    public function next(): ?KeywordValidator
    {
        return $this->next;
    }

    /**
     * @inheritDoc
     */
    public function setNext(?KeywordValidator $next): KeywordValidator
    {
        $this->next = $next;

        return $this;
    }
}