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.hadoop.planner.rule.expressiongraph;
022
023import cascading.flow.planner.graph.Extent;
024import cascading.flow.planner.iso.expression.ElementCapture;
025import cascading.flow.planner.iso.expression.ExpressionGraph;
026import cascading.flow.planner.iso.expression.FlowElementExpression;
027import cascading.flow.planner.iso.finder.SearchOrder;
028import cascading.pipe.Group;
029import cascading.tap.Tap;
030
031import static cascading.flow.planner.iso.expression.NotElementExpression.not;
032import static cascading.flow.planner.iso.expression.OrElementExpression.or;
033
034/**
035 *
036 */
037public class NoGroupTapExpressionGraph extends ExpressionGraph
038  {
039  public NoGroupTapExpressionGraph()
040    {
041    super( SearchOrder.ReverseDepth,
042      not(
043        or(
044          ElementCapture.Primary,
045          new FlowElementExpression( Extent.class ),
046          new FlowElementExpression( Group.class ),
047          new FlowElementExpression( Tap.class )
048        )
049      )
050    );
051    }
052  }