001/*
002 * Copyright (c) 2007-2016 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.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.expression.OrElementExpression;
028import cascading.pipe.Merge;
029import cascading.tap.Tap;
030
031import static cascading.flow.planner.iso.expression.NotElementExpression.not;
032
033/**
034 *
035 */
036public class NoMergeTapExpressionGraph extends ExpressionGraph
037  {
038  public NoMergeTapExpressionGraph()
039    {
040    super(
041      not(
042        OrElementExpression.or(
043          ElementCapture.Primary,
044          new FlowElementExpression( Extent.class ),
045          new FlowElementExpression( Merge.class ),
046          new FlowElementExpression( Tap.class )
047        )
048      )
049    );
050    }
051  }