[jira] Updated: (THRIFT-1035) Container types containing binary data are parameterized with ByteBuffer in the generated Java code

["Mathias Herberts (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/THRIFT-1035?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mathias Herberts updated THRIFT-1035:
-------------------------------------

    Attachment: THRIFT-1035.patch

This patch modifies the Java generator so it generates byte[] for binary data inside collections.

All existing tests pass.

> Container types containing binary data are parameterized with ByteBuffer in the generated Java code
> ---------------------------------------------------------------------------------------------------
>
>                 Key: THRIFT-1035
>                 URL: https://issues.apache.org/jira/browse/THRIFT-1035
>             Project: Thrift
>          Issue Type: Bug
>          Components: Java - Compiler, Java - Library
>    Affects Versions: 0.4, 0.5, 0.6, 0.7
>         Environment: All
>            Reporter: Mathias Herberts
>         Attachments: THRIFT-1035.patch
>
>
> Since THRIFT-830, binary fields are internally handled using ByteBuffer.
> Release 0.4.0 was the first to expose the ByteBuffer to the outside world (replacing previous methods returning/accepting byte[]).
> THRIFT-882 lead to the methods accepting/returning byte[] being available again, as it was deemed more reasonable not to expose the ByteBuffer too much as their use could be cumbersome. This lead to 0.5.0 being backward compatible with 0.3.0 on the binary fields front.
> During that time, nobody noticed that container types that contained binary data had their generated Java code changed to collections parameterized with ByteBuffer instead of byte[].
> list<binary> -> List<ByteBuffer>
> set<binary> -> Set<ByteBuffer>
> map<binary,...> -> Map<ByteBuffer,...>
> map<...,binary> -> Map<...,ByteBuffer>
> This introduces confusion in the API and still exposes ByteBuffer when discussion on THRIFT-882 concluded this should be avoided.
> We need to provide a way to offer the original parameterization with byte[] as this will simplify working with that type of collection and thus will increase the odds of Thrift's adoption.

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