    001/*
    002 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved.
    003 *
    004 * Project and contact information: http://www.cascading.org/
    005 *
    006 * This file is part of the Cascading project.
    007 *
    008 * Licensed under the Apache License, Version 2.0 (the "License");
    009 * you may not use this file except in compliance with the License.
    010 * You may obtain a copy of the License at
    011 *
    012 *     http://www.apache.org/licenses/LICENSE-2.0
    013 *
    014 * Unless required by applicable law or agreed to in writing, software
    015 * distributed under the License is distributed on an "AS IS" BASIS,
    016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017 * See the License for the specific language governing permissions and
    018 * limitations under the License.
    019 */
    020
    021package cascading.provider;
    022
    023import cascading.flow.FlowProcess;
    024
    025/**
    026 * Interface CascadingFactory defines a pluggable "factory" class that can be loaded by the {@link FactoryLoader}
    027 * utility.
    028 * <p/>
    029 * Factory instances are created process side (in a cluster for example) to augment any of the internal strategies.
    030 *
    031 * @see FactoryLoader
    032 */
    033public interface CascadingFactory<Config, Instance>
    034  {
    035  /**
    036   * Method initialize will configure an initialize this factory instance.
    037   *
    038   * @param flowProcess of type FlowProcess
    039   */
    040  void initialize( FlowProcess<? extends Config> flowProcess );
    041
    042  /**
    043   * Method create will return a new instance of the type create by this factory.
    044   *
    045   * @param flowProcess of type FlowProcess
    046   * @return of type Instance
    047   */
    048  Instance create( FlowProcess<? extends Config> flowProcess );
    049  }