| /* |
| * 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.sysml.lops; |
| |
| import org.apache.sysml.lops.LopProperties.ExecLocation; |
| import org.apache.sysml.lops.LopProperties.ExecType; |
| import org.apache.sysml.lops.compile.JobType; |
| import org.apache.sysml.parser.Expression.*; |
| |
| /** |
| * Lop to represent a grouping operation. |
| */ |
| |
| public class Group extends Lop |
| { |
| |
| |
| |
| public enum OperationTypes {Sort}; |
| |
| OperationTypes operation; |
| |
| /** |
| * Constructor to create a grouping operation. |
| * @param input |
| * @param op |
| */ |
| |
| public Group(Lop input, Group.OperationTypes op, DataType dt, ValueType vt) |
| { |
| super(Lop.Type.Grouping, dt, vt); |
| operation = op; |
| this.addInput(input); |
| input.addOutput(this); |
| |
| /* |
| * This lop can be executed in only in GMR and RAND. |
| * MMCJ, REBLOCK, and PARTITION themselves has location MapAndReduce. |
| */ |
| lps.addCompatibility(JobType.GMR); |
| lps.addCompatibility(JobType.DATAGEN); |
| |
| boolean breaksAlignment = false; |
| boolean aligner = true; |
| boolean definesMRJob = true; |
| |
| this.lps.setProperties ( inputs, ExecType.MR, ExecLocation.MapAndReduce, breaksAlignment, aligner, definesMRJob ); |
| } |
| |
| @Override |
| public String toString() |
| { |
| //return "Group " + "Operation: " + operation; |
| return "Operation: " + operation; |
| |
| } |
| |
| } |