Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/22009#discussion_r210154588 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/sources/RateControlMicroBatchReadSupport.scala --- @@ -0,0 +1,31 @@ +/* + * 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.spark.sql.execution.streaming.sources + +import org.apache.spark.sql.sources.v2.reader.streaming.{MicroBatchReadSupport, Offset} + +// A special `MicroBatchReadSupport` that can get latestOffset with a start offset. +trait RateControlMicroBatchReadSupport extends MicroBatchReadSupport { --- End diff -- everything under `org.apache.spark.sql.execution` is private, that's why we don't add `private[...]` to the classes under `org.apache.spark.sql.execution`
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