001/* 002 * Copyright (c) 2007-2015 Concurrent, 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.planner.iso.expression; 022 023import cascading.flow.FlowElement; 024import cascading.flow.planner.PlannerContext; 025import cascading.flow.planner.graph.ElementGraph; 026import cascading.pipe.Operator; 027 028/** 029 * 030 */ 031public class NonSafeOperationExpression extends TypeExpression<Operator> 032 { 033 public NonSafeOperationExpression( ElementCapture capture ) 034 { 035 super( capture, Operator.class ); 036 } 037 038 public NonSafeOperationExpression( Topo topo ) 039 { 040 super( Operator.class, topo ); 041 } 042 043 public NonSafeOperationExpression() 044 { 045 super( Operator.class ); 046 } 047 048 @Override 049 public boolean applies( PlannerContext flowPlanner, ElementGraph elementGraph, FlowElement flowElement ) 050 { 051 boolean applies = super.applies( flowPlanner, elementGraph, flowElement ); 052 053 return applies && !( (Operator) flowElement ).getOperation().isSafe(); 054 } 055 }