001/* 002 * Copyright (c) 2007-2017 Xplenty, 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 021package cascading.flow.tez.planner.rule.annotator; 022 023import cascading.flow.planner.iso.ElementAnnotation; 024import cascading.flow.planner.iso.expression.ElementCapture; 025import cascading.flow.planner.rule.PlanPhase; 026import cascading.flow.planner.rule.RuleExpression; 027import cascading.flow.planner.rule.expressiongraph.NoGroupJoinMergeBoundaryTapExpressionGraph; 028import cascading.flow.planner.rule.transformer.RuleAnnotationTransformer; 029import cascading.flow.stream.annotations.StreamMode; 030import cascading.flow.tez.planner.rule.expressiongraph.AccumulatedSourceExpressionGraph; 031 032/** 033 * 034 */ 035public class AccumulatedPostNodeAnnotator extends RuleAnnotationTransformer 036 { 037 public AccumulatedPostNodeAnnotator() 038 { 039 super( 040 PlanPhase.PostNodes, 041 042 new RuleExpression( 043 new NoGroupJoinMergeBoundaryTapExpressionGraph(), 044 new AccumulatedSourceExpressionGraph() 045 ), 046 047 // not marked accumulated unless all paths are blocking 048 new ElementAnnotation( ElementCapture.Secondary, StreamMode.Accumulated ) 049 ); 050 } 051 }