content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 accord.api;
  
  import accord.local.Command;
  import accord.local.SafeCommandStore;
  import accord.primitives.SaveStatus;
  
  public interface ReplicaEventListener
  {
      default void onRejectPreAccept(SafeCommandStore safeStore, Command cmd, Object reason) {}
      default void onPreAccepted(SafeCommandStore safeStore, Command cmd) {}
  
      default void onRejectPreNotAccept(SafeCommandStore safeStore, Command cmd, Object reason) {}
      default void onPreNotAccepted(SafeCommandStore safeStore, Command cmd) {}
  
      default void onRejectAccept(SafeCommandStore safeStore, Command cmd, Object reason) {}
      default void onAccepted(SafeCommandStore safeStore, Command cmd) {}
  
      default void onRejectNotAccept(SafeCommandStore safeStore, Command cmd, Object reason) {}
      default void onNotAccepted(SafeCommandStore safeStore, Command cmd) {}
  
      default void onRejectCommitOrStable(SafeCommandStore safeStore, SaveStatus commitOrStable, Command cmd, Object reason) {}
      default void onCommitted(SafeCommandStore safeStore, Command cmd) {}
      default void onStable(SafeCommandStore safeStore, Command cmd) {}
  
      default void onReadWaiting(SafeCommandStore safeStore, Command cmd) {}
      default void onReadStarted(SafeCommandStore safeStore, Command cmd) {}
  
      default void onPreApplied(SafeCommandStore safeStore, Command cmd) {}
      // startedApplyAt may be less than zero, indicating it has not been populated
      default void onApplied(SafeCommandStore safeStore, Command cmd, long startedApplyAt) {}
  
      ReplicaEventListener NOOP = new ReplicaEventListener()
      {
      };
  }
  