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ASF GitHub Bot commented on FLINK-7206: --------------------------------------- Github user fhueske commented on a diff in the pull request: https://github.com/apache/flink/pull/4355#discussion_r130119984 --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/aggregate/GeneratedAggregations.scala --- @@ -19,13 +19,20 @@ package org.apache.flink.table.runtime.aggregate import org.apache.flink.api.common.functions.Function +import org.apache.flink.table.dataview.{DataViewFactory, HeapViewFactory} import org.apache.flink.types.Row /** * Base class for code-generated aggregations. */ abstract class GeneratedAggregations extends Function { + var factory: DataViewFactory = new HeapViewFactory() + + def getDataViewFactory: DataViewFactory = factory + + def setDataViewFactory(factory: DataViewFactory): Unit = this.factory = factory --- End diff -- I think we should rather add a method `initialize(ctx: RuntimeContext)` and generate code to register the state in this method. IMO, the `DataViewFactory` is also not required, because 1. we can code-gen all of that functionality 2. we can make heap the default for `MapView` and `ListView` such that we only need to replace it if it needs to be backed by state. So there would be only one implementation of `DataViewFactory` > Implementation of DataView to support state access for UDAGG > ------------------------------------------------------------ > > Key: FLINK-7206 > URL: https://issues.apache.org/jira/browse/FLINK-7206 > Project: Flink > Issue Type: Sub-task > Components: Table API & SQL > Reporter: Kaibo Zhou > Assignee: Kaibo Zhou > > Implementation of MapView and ListView to support state access for UDAGG. -- This message was sent by Atlassian JIRA (v6.4.14#64029)