[jira] [Resolved] (GEODE-28) Gfsh's 'deploy' command needs enhancements to recognize Spring Data GemFire Annotated (deployed) Functions.

["Barbara Pruijn (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/GEODE-28?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Barbara Pruijn resolved GEODE-28.
---------------------------------
    Resolution: Won't Do

> Gfsh's 'deploy' command needs enhancements to recognize Spring Data GemFire Annotated (deployed) Functions.
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: GEODE-28
>                 URL: https://issues.apache.org/jira/browse/GEODE-28
>             Project: Geode
>          Issue Type: Improvement
>          Components: configuration, functions, gfsh
>            Reporter: John Blum
>            Priority: Major
>              Labels: ClassLoader, DeployCommand, Function, Gfsh, deploy
>
> If developers want to "implement" _Apache Geode_ {{Functions}} using [_Spring Data GemFire's_ Function Annotation support|http://docs.spring.io/spring-data-gemfire/docs/current/reference/html/#function-annotations], then they are unable to leverage other _Geode_ features as a result.
> One such feature is the ability to use _Gfsh's_ '{{deploy}}' command to (re-)deploy JAR files containing [Function|http://gemfire.docs.pivotal.io/latest/javadocs/japi/com/gemstone/gemfire/cache/execute/Function.html] classes "implementing" _Apache Geode_ {{Functions}} that may have been modified and _Geode_ will "automatically" +detect+ and subsequently +register+ those updated JAR packaged {{Function(s)}}.
> I have been asked, "_what is *Spring Data GemFire* going to do to support the (hot) {{deploy}} feature?_"  However, this is the +wrong+ question.
> It is not what SDG can do since, technically, this is a limitation in _Geode_ (and by extension _GemFire_), and _Geode_ only detects _Geode_ specific types (in particular, and +only+... [com.gemstone.gemfire.cache.Function|http://gemfire.docs.pivotal.io/latest/javadocs/japi/com/gemstone/gemfire/cache/execute/Function.html] class types).  While non-{{Function}} classes and resources are technically added to the "custom" CLASSPATH (defined by an "internal", _Geode_ {{ClassLoader}}), there is no recognition and "first-class" support for non-_Geode_ types thereby complicating the matter for technologies that integrate with _Geode_ such as _Spring_.
> So, the right question is, "_what can _Geode_ do to recognize additional types (or rather, meta-data annotated class types) that are not part of the core _Geode_ types?
> In essence, _Apache Goede's_ Gfsh '{{deploy}}' command needs to be enhanced to recognize SDG-defined Function Annotated POJOs and act accordingly, in this case.



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)