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ASF GitHub Bot commented on FLINK-2997: --------------------------------------- Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/1776#discussion_r55661214 --- Diff: flink-tests/src/test/java/org/apache/flink/test/javaApiOperators/CustomDistributionITCase.java --- @@ -0,0 +1,142 @@ +/* + * 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.test.javaApiOperators; + +import org.apache.flink.api.java.tuple.Tuple2; +import org.apache.flink.test.distribution.CustomDistribution; +import org.apache.flink.api.common.functions.MapPartitionFunction; +import org.apache.flink.api.java.DataSet; +import org.apache.flink.api.java.ExecutionEnvironment; +import org.apache.flink.api.java.tuple.Tuple1; +import org.apache.flink.api.java.tuple.Tuple3; +import org.apache.flink.api.java.utils.DataSetUtils; +import org.apache.flink.types.IntValue; +import org.apache.flink.util.Collector; +import org.junit.Test; + + +import static org.junit.Assert.assertEquals; + + +public class CustomDistributionITCase { --- End diff -- Please add comments about what the tests are doing and testing. > Support range partition with user customized data distribution. > --------------------------------------------------------------- > > Key: FLINK-2997 > URL: https://issues.apache.org/jira/browse/FLINK-2997 > Project: Flink > Issue Type: New Feature > Reporter: Chengxiang Li > > This is a followup work of FLINK-7, sometime user have better knowledge of > the source data, and they can build customized data distribution to do range > partition more efficiently. -- This message was sent by Atlassian JIRA (v6.3.4#6332)