/*
* Copyright (c) 2007-2014 Concurrent, Inc. All Rights Reserved.
*
* Project and contact information: http://www.cascading.org/
*
* This file is part of the Cascading project.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cascading.flow.tez.planner.rule.assertion;
import cascading.flow.planner.iso.expression.ElementCapture;
import cascading.flow.planner.iso.expression.ExpressionGraph;
import cascading.flow.planner.iso.expression.FlowElementExpression;
import cascading.flow.planner.rule.RuleAssert;
import cascading.flow.planner.rule.RuleExpression;
import cascading.pipe.HashJoin;
import static cascading.flow.planner.rule.PlanPhase.PreBalanceAssembly;
/**
* Verifies that there are no {@link cascading.pipe.HashJoin} pipes in the assembly.
*/
public class NoHashJoinAssert extends RuleAssert
{
public NoHashJoinAssert()
{
super(
PreBalanceAssembly,
new RuleExpression( new ExpressionGraph()
.arcs(
new FlowElementExpression( ElementCapture.Primary, HashJoin.class )
) ),
"HashJoins not supported by this rule registry, found {Primary}"
);
}
}