| /* |
| * 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.calcite.rel; |
| |
| import org.apache.calcite.rel.core.TableFunctionScan; |
| import org.apache.calcite.rel.core.TableScan; |
| import org.apache.calcite.rel.logical.LogicalAggregate; |
| import org.apache.calcite.rel.logical.LogicalCorrelate; |
| import org.apache.calcite.rel.logical.LogicalExchange; |
| import org.apache.calcite.rel.logical.LogicalFilter; |
| import org.apache.calcite.rel.logical.LogicalIntersect; |
| import org.apache.calcite.rel.logical.LogicalJoin; |
| import org.apache.calcite.rel.logical.LogicalMatch; |
| import org.apache.calcite.rel.logical.LogicalMinus; |
| import org.apache.calcite.rel.logical.LogicalProject; |
| import org.apache.calcite.rel.logical.LogicalSort; |
| import org.apache.calcite.rel.logical.LogicalUnion; |
| import org.apache.calcite.rel.logical.LogicalValues; |
| |
| /** |
| * Visits all the relations in a homogeneous way: always redirects calls to |
| * {@code accept(RelNode)}. |
| */ |
| public class RelHomogeneousShuttle extends RelShuttleImpl { |
| @Override public RelNode visit(LogicalAggregate aggregate) { |
| return visit((RelNode) aggregate); |
| } |
| |
| @Override public RelNode visit(LogicalMatch match) { |
| return visit((RelNode) match); |
| } |
| |
| @Override public RelNode visit(TableScan scan) { |
| return visit((RelNode) scan); |
| } |
| |
| @Override public RelNode visit(TableFunctionScan scan) { |
| return visit((RelNode) scan); |
| } |
| |
| @Override public RelNode visit(LogicalValues values) { |
| return visit((RelNode) values); |
| } |
| |
| @Override public RelNode visit(LogicalFilter filter) { |
| return visit((RelNode) filter); |
| } |
| |
| @Override public RelNode visit(LogicalProject project) { |
| return visit((RelNode) project); |
| } |
| |
| @Override public RelNode visit(LogicalJoin join) { |
| return visit((RelNode) join); |
| } |
| |
| @Override public RelNode visit(LogicalCorrelate correlate) { |
| return visit((RelNode) correlate); |
| } |
| |
| @Override public RelNode visit(LogicalUnion union) { |
| return visit((RelNode) union); |
| } |
| |
| @Override public RelNode visit(LogicalIntersect intersect) { |
| return visit((RelNode) intersect); |
| } |
| |
| @Override public RelNode visit(LogicalMinus minus) { |
| return visit((RelNode) minus); |
| } |
| |
| @Override public RelNode visit(LogicalSort sort) { |
| return visit((RelNode) sort); |
| } |
| |
| @Override public RelNode visit(LogicalExchange exchange) { |
| return visit((RelNode) exchange); |
| } |
| } |
| |
| // End RelHomogeneousShuttle.java |