/*
 * Copyright contributors to Hyperledger Besu.
 *
 * 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.
 *
 * SPDX-License-Identifier: Apache-2.0
 */
package org.hyperledger.besu.ethereum.p2p.discovery.dns;

import java.util.List;

// Adapted from https://github.com/tmio/tuweni and licensed under Apache 2.0
/** Callback listening to updates of the DNS records. */
@FunctionalInterface
public interface DNSDaemonListener {
  /**
   * Callback called when the seq is updated on the DNS server
   *
   * @param seq the update identifier of the records
   * @param records the records stored on the server
   */
  void newRecords(long seq, List<EthereumNodeRecord> records);
}
