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From cloud-fan <...@git.apache.org>
Subject [GitHub] spark pull request #22009: [SPARK-24882][SQL] improve data source v2 API
Date Tue, 07 Aug 2018 09:46:28 GMT
Github user cloud-fan commented on a diff in the pull request:

    https://github.com/apache/spark/pull/22009#discussion_r208165977
  
    --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/streaming/OffsetsOnlyScanConfigBuilder.scala
---
    @@ -0,0 +1,30 @@
    +/*
    + * 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
    +
    +import org.apache.spark.sql.sources.v2.reader.{ScanConfig, ScanConfigBuilder}
    +
    +/**
    + * A very simple [[ScanConfigBuilder]] and [[ScanConfig]] implementation that carries
offsets for
    + * streaming data sources.
    + */
    +case class OffsetsOnlyScanConfigBuilder(start: Offset, end: Option[Offset] = None)
    +  extends ScanConfigBuilder with ScanConfig {
    --- End diff --
    
    otherwise we need to create 2 very similar classes. I'm fine with both.


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