    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.Boundary;
    029import cascading.pipe.Group;
    030import cascading.pipe.HashJoin;
    031import cascading.pipe.Merge;
    032import cascading.tap.Tap;
    033
    034import static cascading.flow.planner.iso.expression.NotElementExpression.not;
    035
    036/**
    037 *
    038 */
    039public class NoGroupJoinMergeBoundaryTapExpressionGraph extends ExpressionGraph
    040  {
    041  public NoGroupJoinMergeBoundaryTapExpressionGraph()
    042    {
    043    super(
    044      not(
    045        OrElementExpression.or(
    046          ElementCapture.Primary,
    047          new FlowElementExpression( Extent.class ),
    048          new FlowElementExpression( Group.class ),
    049          new FlowElementExpression( HashJoin.class ),
    050          new FlowElementExpression( Merge.class ),
    051          new FlowElementExpression( Boundary.class ),
    052          new FlowElementExpression( Tap.class )
    053        )
    054      )
    055    );
    056    }
    057  }