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https://issues.apache.org/jira/browse/CASSANDRA-20404?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17938328#comment-17938328
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Maulin Vasavada commented on CASSANDRA-20404:
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[~smiklosovic] can you please take a look at this when you get a chance and
share what test results you see from the previous run?
> Improve EncryptionOptions class's `with` methods using Builder pattern
> ----------------------------------------------------------------------
>
> Key: CASSANDRA-20404
> URL: https://issues.apache.org/jira/browse/CASSANDRA-20404
> Project: Apache Cassandra
> Issue Type: Improvement
> Components: Legacy/Core
> Reporter: Maulin Vasavada
> Assignee: Maulin Vasavada
> Priority: Normal
> Fix For: 5.x
>
> Time Spent: 1h 20m
> Remaining Estimate: 0h
>
> Currently,
> [EncryptionOptions.java|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/config/EncryptionOptions.java#L520]
> allows constructing the object using `with` prefix method pattern which
> sounds similar to the Builder Pattern
> ([example)|https://blogs.oracle.com/javamagazine/post/exploring-joshua-blochs-builder-design-pattern-in-java]
> However, when there is any new parameter introduced in the class for a
> corresponding configuration option, it requires changes to all the
> constructor calls from those `with` methods to reflect the new parameter.
> This is error prone given so many string parameters and considering some
> [special
> use-cases|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/config/EncryptionOptions.java#L1190]
> it makes it challenging to modify the code for a simple task - adding a new
> parameter in the class.
> Proposal here is to use the Builder pattern (like shows in the example linked
> above) to improve the code in EncryptionOptions.java file.
> There could be a potential to consider using "java record" type that got
> introduced in Java 14+ or using [Lombok plugin|https://projectlombok.org/]
> but in order to be backward compatible and avoid additional dependency on
> external packages- may be we can simply follow the builder pattern.
> One change that we have to be careful about is - the new builder pattern
> implementation may not call `applyConfig()` everytime upon calling `with`
> methods compared to the current implementation. Only when final
> `Builder#build()` happens it will call the applyConfig() method . While that
> saves multiple initialization that happen today in Tests due to heavy usage,
> we have to assess if there is any impact due to this behavior change.
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