/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 * <p/> * http://www.apache.org/licenses/LICENSE-2.0 * <p/> * 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 org.apache.drill.exec.planner.fragment; import org.apache.drill.exec.physical.PhysicalOperatorSetupException; import org.apache.drill.exec.proto.CoordinationProtos.DrillbitEndpoint; import java.util.Collection; /** * Generic interface to provide different parallelization strategies for MajorFragments. */ public interface FragmentParallelizer { /** * Parallelize the given fragment. * * @param fragment * @param parameters * @param activeEndpoints * @throws PhysicalOperatorSetupException */ void parallelizeFragment(final Wrapper fragment, final ParallelizationParameters parameters, final Collection<DrillbitEndpoint> activeEndpoints) throws PhysicalOperatorSetupException; }