/** * 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.physical.config; import org.apache.drill.exec.physical.base.AbstractSingle; import org.apache.drill.exec.physical.base.PhysicalOperator; import org.apache.drill.exec.physical.base.PhysicalVisitor; public class IteratorValidator extends AbstractSingle{ static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(IteratorValidator.class); public IteratorValidator(PhysicalOperator child) { super(child); setCost(child.getCost()); } @Override public <T, X, E extends Throwable> T accept(PhysicalVisitor<T, X, E> physicalVisitor, X value) throws E { return physicalVisitor.visitIteratorValidator(this, value); } @Override protected PhysicalOperator getNewWithChild(PhysicalOperator child) { return new IteratorValidator(child); } @Override public int getOperatorType() { return -1; } }