| /* |
| * 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.core.JoinRelType; |
| import org.apache.samza.operators.KV; |
| import org.apache.samza.sql.SamzaSqlRelRecord; |
| import org.apache.samza.sql.data.SamzaSqlRelMessage; |
| |
| |
| /** |
| * This class joins incoming {@link SamzaSqlRelMessage} with records {@link KV}<{@link SamzaSqlRelRecord}, {@link SamzaSqlRelMessage}>} |
| * from local table with the join key being {@link SamzaSqlRelRecord}. |
| */ |
| public class SamzaSqlLocalTableJoinFunction |
| extends SamzaSqlTableJoinFunction<SamzaSqlRelRecord, KV<SamzaSqlRelRecord, SamzaSqlRelMessage>> { |
| |
| SamzaSqlLocalTableJoinFunction(JoinInputNode streamNode, JoinInputNode tableNode, JoinRelType joinRelType) { |
| super(streamNode, tableNode, joinRelType); |
| } |
| |
| @Override |
| protected List<Object> getTableRelRecordFieldValues(KV<SamzaSqlRelRecord, SamzaSqlRelMessage> record) { |
| return record.getValue().getSamzaSqlRelRecord().getFieldValues(); |
| } |
| |
| @Override |
| public SamzaSqlRelRecord getMessageKey(SamzaSqlRelMessage message) { |
| return getMessageKeyRelRecord(message); |
| } |
| |
| @Override |
| public SamzaSqlRelRecord getRecordKey(KV<SamzaSqlRelRecord, SamzaSqlRelMessage> record) { |
| return record.getKey(); |
| } |
| } |