Github user marmbrus commented on a diff in the pull request: https://github.com/apache/spark/pull/13335#discussion_r65409474 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/streaming/ContinuousQueryListener.scala --- @@ -69,27 +72,27 @@ abstract class ContinuousQueryListener { @Experimental object ContinuousQueryListener { - /** - * Base type of [[ContinuousQueryListener]] events. - * @since 2.0.0 - */ + /** Base type of [[ContinuousQueryListener]] events */ + @JsonTypeInfo( + use = JsonTypeInfo.Id.CLASS, + include = JsonTypeInfo.As.PROPERTY, + property = "@class") trait Event - /** - * Event representing the start of a query. - * @since 2.0.0 - */ - class QueryStarted private[sql](val query: ContinuousQuery) extends Event + /** Event representing the start of a query */ + class QueryStarted private[sql](val queryInfo: ContinuousQueryInfo) extends Event - /** - * Event representing any progress updates in a query. - * @since 2.0.0 - */ - class QueryProgress private[sql](val query: ContinuousQuery) extends Event + /** Event representing any progress updates in a query */ + class QueryProgress private[sql](val queryInfo: ContinuousQueryInfo) extends Event /** - * Event representing that termination of a query. - * @since 2.0.0 + * Event representing that termination of a query + * + * @param queryInfo + * @param exception The exception information of the [[ContinuousQuery]] if any. Otherwise, it + * will be `None`. */ - class QueryTerminated private[sql](val query: ContinuousQuery) extends Event + class QueryTerminated private[sql]( + val queryInfo: ContinuousQueryInfo, + val exception: Option[String]) extends Event --- End diff -- I don't think a string is enough here. I think you need the stack trace also for it to be useful.
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