bowenli86 commented on a change in pull request #7059: [FLINK-10689][table] Port UDFs in Table API extension points to flink-table-common URL: https://github.com/apache/flink/pull/7059#discussion_r232002211
########## File path: flink-libraries/flink-table-common/src/main/java/org/apache/flink/table/functions/AggregateFunction.java ########## @@ -0,0 +1,143 @@ +/* + * 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.flink.table.functions; + +import org.apache.flink.api.common.typeinfo.TypeInformation; + +/** + * Base class for User-Defined Aggregates. + * + * <p>The behavior of an [[AggregateFunction]] can be defined by implementing a series of custom Review comment: [[xxx]] is scala doc style, pls update to java style for all comments in this PR ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
