code: /*
   * Copyright © 2014-2017 EntIT Software LLC, a Micro Focus company (L.P.)
   *
   * 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 io.cloudslang.engine.data;
  
  import java.util.List;
  
  /**
   * Created by IntelliJ IDEA.
   * User: froelica
   * Date: 4/29/13
   * Time: 10:05 AM
   *
   * This service is responsible for generating ids that are unique in the DB level.
   *
   */
  public interface IdentityGenerator {
  
      /**
       * returns the next id available.
       *
       * @return a {@link java.lang.Long} of the next available id.
       */
      Long next();
  
      /**
       * return a bulk of a given size of ids
       *
       * @param bulkSize the amount of ids ro return
       * @return a {@link java.util.List<java.lang.Long>} of ids.
       */
      List<Long> bulk(int bulkSize);
  }