001    /*
002     * Copyright (c) 2007-2015 Concurrent, 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    
021    package cascading.provider;
022    
023    import 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     */
033    public 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<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<Config> flowProcess );
049      }