[jira] Assigned: (THRIFT-10) Descriptors used during serialization should be immutable objects

["Bryan Duxbury (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/THRIFT-10?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Bryan Duxbury reassigned THRIFT-10:
-----------------------------------

    Assignee: Bryan Duxbury

> Descriptors used during serialization should be immutable objects
> -----------------------------------------------------------------
>
>                 Key: THRIFT-10
>                 URL: https://issues.apache.org/jira/browse/THRIFT-10
>             Project: Thrift
>          Issue Type: Improvement
>          Components: Library (Java)
>            Reporter: Johan Stuyts
>            Assignee: Bryan Duxbury
>            Priority: Minor
>             Fix For: 0.1
>
>         Attachments: ImmutableProtocolComponentDescriptors2.patch, SerializationBenchmarkMain.java, thrift-10-v2.patch
>
>
> The descriptors for structures, messages, types, etc. in package {{com.facebook.thrift.protocol}} which are used during (de-)serialization have mutable attributes. This forces the creation of these descriptors for each use even if the data is constant in many cases.
> By changing the descriptors to be immutable, structures and protocols can use singleton, constant instances during (de-)serialization. This will improve performance a bit by preventing the creation of hundreds (thousands?) of short-lived objects per second during heavy use of Thrift.

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