Eirik Sletteberg created THRIFT-1909:
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Summary: 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
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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