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https://issues.apache.org/jira/browse/THRIFT-1909?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Roger Meier resolved THRIFT-1909.
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Resolution: Fixed
Assignee: Roger Meier
committed
> Java: Add compiler flag to use the "option pattern" for optional fields
> -----------------------------------------------------------------------
>
> Key: THRIFT-1909
> URL: https://issues.apache.org/jira/browse/THRIFT-1909
> Project: Thrift
> Issue Type: New Feature
> Components: Java - Compiler, Java - Library
> Reporter: Eirik Sletteberg
> Assignee: Roger Meier
> Attachments: add-option-type.patch, thrift-0.9.3-option_type.patch
>
>
> This is a follow-up of the brainstorming issue about better null safety in
> Java.
> The patch adds:
> 1) A new abstract Option<T> class, with two subclasses: Some<T> and None<T>.
> 2) An optional compiler flag for the java compiler. When set, it wraps
> methods for optional fields in Option types.
> An example of usage is found here:
> https://github.com/eirslett/thrift-optional-example
> - No java dependencies are introduced.
> - The patch is entirely backwards-compatible; if the compiler flag is not
> present, it will generate the same code as thrift usually does.
> - The implementation is compatible with thrift servers/clients where the
> compiler flag is not used.
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