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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.drill.exec.planner.physical.visitor;
import org.apache.drill.exec.planner.physical.ExchangePrel;
import org.apache.drill.exec.planner.physical.JoinPrel;
import org.apache.drill.exec.planner.physical.Prel;
import org.apache.drill.exec.planner.physical.ProjectPrel;
import org.apache.drill.exec.planner.physical.ScanPrel;
import org.apache.drill.exec.planner.physical.ScreenPrel;
import org.apache.drill.exec.planner.physical.WriterPrel;
import org.apache.drill.exec.planner.physical.UnnestPrel;
import org.apache.drill.exec.planner.physical.LateralJoinPrel;
public class BasePrelVisitor<RETURN, EXTRA, EXCEP extends Throwable> implements PrelVisitor<RETURN, EXTRA, EXCEP> {
@Override
public RETURN visitScan(ScanPrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
@Override
public RETURN visitExchange(ExchangePrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
@Override
public RETURN visitJoin(JoinPrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
@Override
public RETURN visitProject(ProjectPrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
@Override
public RETURN visitScreen(ScreenPrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
@Override
public RETURN visitWriter(WriterPrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
@Override
public RETURN visitPrel(Prel prel, EXTRA value) throws EXCEP {
throw new UnsupportedOperationException(String.format("No visit method defined for prel %s in visitor %s.", prel, this.getClass().getName()));
}
@Override
public RETURN visitUnnest(UnnestPrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
@Override
public RETURN visitLateral(LateralJoinPrel prel, EXTRA value) throws EXCEP {
return visitPrel(prel, value);
}
}
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