content: package act.db;
  
  /*-
   * #%L
   * ACT Framework
   * %%
   * Copyright (C) 2014 - 2017 ActFramework
   * %%
   * 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.
   * #L%
   */
  
  /**
   * The model with time tracking and auditing built in
   * @param <PRINCIPAL_TYPE> the principal type
   */
  public interface AuditingModel<PRINCIPAL_TYPE> {
      /**
       * Returns the principal who created and saved this model
       * @return the creator
       */
      PRINCIPAL_TYPE _creator();
  
      /**
       * Returns the principal who is the last person modified and saved this model
       * @return the last modifier
       */
      PRINCIPAL_TYPE _lastModifier();
  
      /**
       * Return the class of principal used in this model
       * @return
       */
      Class<PRINCIPAL_TYPE> _principalType();
  
  }
  
  