001/* 002 * Copyright (c) 2016-2017 Chris K Wensel <chris@wensel.net>. All Rights Reserved. 003 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved. 004 * 005 * Project and contact information: http://www.cascading.org/ 006 * 007 * This file is part of the Cascading project. 008 * 009 * Licensed under the Apache License, Version 2.0 (the "License"); 010 * you may not use this file except in compliance with the License. 011 * You may obtain a copy of the License at 012 * 013 * http://www.apache.org/licenses/LICENSE-2.0 014 * 015 * Unless required by applicable law or agreed to in writing, software 016 * distributed under the License is distributed on an "AS IS" BASIS, 017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 018 * See the License for the specific language governing permissions and 019 * limitations under the License. 020 */ 021 022package cascading.management; 023 024import java.util.Collection; 025import java.util.List; 026import java.util.concurrent.Callable; 027import java.util.concurrent.Future; 028import java.util.concurrent.TimeUnit; 029 030/** 031 * The interface UnitOfWorkSpawnStrategy is a strategy for allowing pluggable thread management services into 032 * any {@link UnitOfWork} class. 033 * <p> 034 * The default strategy is {@link UnitOfWorkExecutorStrategy}. 035 * 036 * @see UnitOfWork 037 * @see cascading.flow.Flow 038 * @see cascading.cascade.Cascade 039 */ 040public interface UnitOfWorkSpawnStrategy 041 { 042 List<Future<Throwable>> start( UnitOfWork unitOfWork, int maxConcurrentThreads, Collection<Callable<Throwable>> values ) throws InterruptedException; 043 044 boolean isCompleted( UnitOfWork unitOfWork ); 045 046 void complete( UnitOfWork unitOfWork, int duration, TimeUnit unit ) throws InterruptedException; 047 }