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Posted to issues@spark.apache.org by "Yang Jie (Jira)" <ji...@apache.org> on 2023/10/13 00:50:00 UTC
[jira] [Resolved] (SPARK-45515) Use enhanced `switch` expressions to replace the regular `switch` statement
[ https://issues.apache.org/jira/browse/SPARK-45515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yang Jie resolved SPARK-45515.
------------------------------
Fix Version/s: 4.0.0
Resolution: Fixed
Issue resolved by pull request 43349
[https://github.com/apache/spark/pull/43349]
> Use enhanced `switch` expressions to replace the regular `switch` statement
> ---------------------------------------------------------------------------
>
> Key: SPARK-45515
> URL: https://issues.apache.org/jira/browse/SPARK-45515
> Project: Spark
> Issue Type: Sub-task
> Components: Spark Core, SQL
> Affects Versions: 4.0.0
> Reporter: Yang Jie
> Assignee: Yang Jie
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
>
> refer to [JEP 361|https://openjdk.org/jeps/361]
>
> Example:
> {code:java}
> double getPrice(String fruit) {
> switch (fruit) {
> case "Apple":
> return 1.0;
> case "Orange":
> return 1.5;
> case "Mango":
> return 2.0;
> default:
> throw new IllegalArgumentException();
> }
> } {code}
> Can be changed to
> {code:java}
> double getPrice(String fruit) {
> return switch (fruit) {
> case "Apple" -> 1.0;
> case "Orange" -> 1.5;
> case "Mango" -> 2.0;
> default -> throw new IllegalArgumentException();
> };
> } {code}
>
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