| /* |
| * 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.common.logical.data.visitors; |
| |
| import org.apache.drill.common.logical.data.Except; |
| import org.apache.drill.common.logical.data.Intersect; |
| import org.apache.drill.common.logical.data.LateralJoin; |
| import org.apache.drill.common.logical.data.Unnest; |
| import org.apache.drill.common.logical.data.Analyze; |
| import org.apache.drill.common.logical.data.Values; |
| import org.apache.drill.common.logical.data.Filter; |
| import org.apache.drill.common.logical.data.Flatten; |
| import org.apache.drill.common.logical.data.GroupingAggregate; |
| import org.apache.drill.common.logical.data.Join; |
| import org.apache.drill.common.logical.data.Limit; |
| import org.apache.drill.common.logical.data.LogicalOperator; |
| import org.apache.drill.common.logical.data.Order; |
| import org.apache.drill.common.logical.data.Project; |
| import org.apache.drill.common.logical.data.RunningAggregate; |
| import org.apache.drill.common.logical.data.Scan; |
| import org.apache.drill.common.logical.data.Store; |
| import org.apache.drill.common.logical.data.Transform; |
| import org.apache.drill.common.logical.data.Union; |
| import org.apache.drill.common.logical.data.Window; |
| import org.apache.drill.common.logical.data.Writer; |
| |
| |
| public abstract class AbstractLogicalVisitor<T, X, E extends Throwable> implements LogicalVisitor<T, X, E> { |
| |
| public T visitOp(LogicalOperator op, X value) throws E{ |
| throw new UnsupportedOperationException(String.format( |
| "The LogicalVisitor of type %s does not currently support visiting the PhysicalOperator type %s.", this |
| .getClass().getCanonicalName(), op.getClass().getCanonicalName())); |
| } |
| |
| @Override |
| public T visitAnalyze(Analyze analyze, X value) throws E { |
| return visitOp(analyze, value); |
| } |
| |
| @Override |
| public T visitScan(Scan scan, X value) throws E { |
| return visitOp(scan, value); |
| } |
| |
| @Override |
| public T visitStore(Store store, X value) throws E { |
| return visitOp(store, value); |
| } |
| |
| @Override |
| public T visitFilter(Filter filter, X value) throws E { |
| return visitOp(filter, value); |
| } |
| |
| @Override |
| public T visitFlatten(Flatten flatten, X value) throws E { |
| return visitOp(flatten, value); |
| } |
| |
| @Override |
| public T visitProject(Project project, X value) throws E { |
| return visitOp(project, value); |
| } |
| |
| @Override |
| public T visitOrder(Order order, X value) throws E { |
| return visitOp(order, value); |
| } |
| |
| @Override |
| public T visitJoin(Join join, X value) throws E { |
| return visitOp(join, value); |
| } |
| |
| @Override |
| public T visitLimit(Limit limit, X value) throws E { |
| return visitOp(limit, value); |
| } |
| |
| @Override |
| public T visitRunningAggregate(RunningAggregate runningAggregate, X value) throws E { |
| return visitOp(runningAggregate, value); |
| } |
| |
| @Override |
| public T visitGroupingAggregate(GroupingAggregate groupBy, X value) throws E { |
| return visitOp(groupBy, value); |
| } |
| |
| @Override |
| public T visitTransform(Transform transform, X value) throws E { |
| return visitOp(transform, value); |
| } |
| |
| @Override |
| public T visitUnion(Union union, X value) throws E { |
| return visitOp(union, value); |
| } |
| |
| @Override |
| public T visitExcept(Except except, X value) throws E { |
| return visitOp(except, value); |
| } |
| |
| @Override |
| public T visitIntersect(Intersect intersect, X value) throws E { |
| return visitOp(intersect, value); |
| } |
| |
| @Override |
| public T visitWindow(Window window, X value) throws E { |
| return visitOp(window, value); |
| } |
| |
| @Override |
| public T visitValues(Values constant, X value) throws E { |
| return visitOp(constant, value); |
| } |
| |
| @Override |
| public T visitWriter(Writer writer, X value) throws E { |
| return visitOp(writer, value); |
| } |
| |
| @Override |
| public T visitUnnest(Unnest unnest, X value) throws E { |
| return visitOp(unnest, value); |
| } |
| |
| @Override |
| public T visitLateralJoin(LateralJoin lateralJoin, X value) throws E { |
| return visitOp(lateralJoin, value); |
| } |
| } |