| /* |
| * 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 |
| * |
| * 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 org.apache.flink.optimizer.operators; |
| |
| import org.apache.flink.api.common.operators.util.FieldList; |
| import org.apache.flink.optimizer.dag.SingleInputNode; |
| import org.apache.flink.optimizer.dataproperties.GlobalProperties; |
| import org.apache.flink.optimizer.dataproperties.LocalProperties; |
| import org.apache.flink.optimizer.dataproperties.RequestedGlobalProperties; |
| import org.apache.flink.optimizer.dataproperties.RequestedLocalProperties; |
| import org.apache.flink.optimizer.plan.Channel; |
| import org.apache.flink.optimizer.plan.SingleInputPlanNode; |
| import org.apache.flink.runtime.operators.DriverStrategy; |
| |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** */ |
| public class SolutionSetDeltaOperator extends OperatorDescriptorSingle { |
| |
| public SolutionSetDeltaOperator(FieldList partitioningFields) { |
| super(partitioningFields); |
| } |
| |
| @Override |
| public DriverStrategy getStrategy() { |
| return DriverStrategy.UNARY_NO_OP; |
| } |
| |
| @Override |
| public SingleInputPlanNode instantiate(Channel in, SingleInputNode node) { |
| return new SingleInputPlanNode(node, "SolutionSet Delta", in, DriverStrategy.UNARY_NO_OP); |
| } |
| |
| @Override |
| protected List<RequestedGlobalProperties> createPossibleGlobalProperties() { |
| RequestedGlobalProperties partProps = new RequestedGlobalProperties(); |
| partProps.setHashPartitioned(this.keyList); |
| return Collections.singletonList(partProps); |
| } |
| |
| @Override |
| protected List<RequestedLocalProperties> createPossibleLocalProperties() { |
| return Collections.singletonList(new RequestedLocalProperties()); |
| } |
| |
| @Override |
| public GlobalProperties computeGlobalProperties(GlobalProperties gProps) { |
| return gProps; |
| } |
| |
| @Override |
| public LocalProperties computeLocalProperties(LocalProperties lProps) { |
| return lProps; |
| } |
| } |