    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.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  }