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Posted to issues@spark.apache.org by "Yang Jie (Jira)" <ji...@apache.org> on 2023/10/12 15:54:00 UTC
[jira] [Resolved] (SPARK-45501) Use pattern matching for type checking and conversion
[ https://issues.apache.org/jira/browse/SPARK-45501?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yang Jie resolved SPARK-45501.
------------------------------
Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 43327
[https://github.com/apache/spark/pull/43327]
> Use pattern matching for type checking and conversion
> -----------------------------------------------------
>
> Key: SPARK-45501
> URL: https://issues.apache.org/jira/browse/SPARK-45501
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core, SQL
> Affects Versions: 4.0.0
> Reporter: Yang Jie
> Assignee: Yang Jie
> Priority: Minor
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> Refer to [JEP 394|https://openjdk.org/jeps/394]
> Example:
> {code:java}
> if (obj instanceof String) {
> String str = (String) obj;
> System.out.println(str);
> } {code}
> Can be replaced with
>
> {code:java}
> if (obj instanceof String str) {
> System.out.println(str);
> } {code}
> The new code look more compact
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