| /* |
| * 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.samza.sql.translator; |
| |
| import java.util.List; |
| import org.apache.calcite.rel.RelNode; |
| import org.apache.samza.sql.interfaces.SqlIOConfig; |
| |
| |
| /** |
| * This class represents the input node for the join. It can be either a table or a stream. |
| */ |
| class JoinInputNode { |
| |
| // Calcite RelNode corresponding to the input |
| private final RelNode relNode; |
| // Id of the key(s) in the fields that this input has |
| private final List<Integer> keyIds; |
| |
| private final InputType inputType; |
| private final boolean isPosOnRight; |
| |
| enum InputType { |
| STREAM, |
| LOCAL_TABLE, |
| REMOTE_TABLE |
| } |
| |
| JoinInputNode(RelNode relNode, List<Integer> keyIds, InputType inputType, boolean isPosOnRight) { |
| this.relNode = relNode; |
| this.keyIds = keyIds; |
| this.inputType = inputType; |
| this.isPosOnRight = isPosOnRight; |
| } |
| |
| boolean isRemoteTable() { |
| return this.inputType == InputType.REMOTE_TABLE; |
| } |
| |
| List<Integer> getKeyIds() { |
| return keyIds; |
| } |
| |
| List<String> getFieldNames() { |
| return relNode.getRowType().getFieldNames(); |
| } |
| |
| RelNode getRelNode() { |
| return relNode; |
| } |
| |
| String getSourceName() { |
| return SqlIOConfig.getSourceFromSourceParts(relNode.getTable().getQualifiedName()); |
| } |
| |
| boolean isPosOnRight() { |
| return isPosOnRight; |
| } |
| } |