[jira] [Updated] (THRIFT-1528) Inconsistency in optional fields between Java/C# and python

["James E. King III (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/THRIFT-1528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

James E. King III updated THRIFT-1528:
--------------------------------------
    Fix Version/s:     (was: 1.0)

> Inconsistency in optional fields between Java/C# and python
> -----------------------------------------------------------
>
>                 Key: THRIFT-1528
>                 URL: https://issues.apache.org/jira/browse/THRIFT-1528
>             Project: Thrift
>          Issue Type: Bug
>          Components: Python - Compiler
>    Affects Versions: 0.8
>            Reporter: Stefan Gmeiner
>            Priority: Major
>
> If a struct contains optional fields with default values the generated python code serialize differently than Java or C# code.
> In Java or C# optional fields are only serialized if a field was set by the client. If not the field is omited during serialization. This is possible because C#/Java maintains for each field a 'isset'-boolean which records if a field was set or not.
> However the generated python code does not have such a 'isset'-structure. It writes every field which is not equal None. As the constructor initialize the optional fields with their default value, these fields are written whether they are set or not.



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