| /** |
| * 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.storm.trident; |
| |
| /** |
| * This enum defines how the output fields of JOIN is constructed. |
| * |
| * <p>If user specifies COMPACT while calling JOIN, the tuples emitted from the join will contain: First, the list of |
| * join fields. Please note that joining fields are exposed only once from emitted tuples. Next, a list of all non-join |
| * fields from all streams, in order of how the streams were passed to the join method. |
| * |
| * <p>If user specifies PRESERVE while calling JOIN, the tuples emitted from the join will contain: a list of all fields |
| * from all streams, in order of how the streams were passed to the join method. |
| */ |
| public enum JoinOutFieldsMode { |
| COMPACT, |
| PRESERVE |
| } |
