[jboss-jira] [JBoss JIRA] Commented: (JBPM-831) avoid using default id generator

[Wenbo Zhu (JIRA)]

    [ http://jira.jboss.com/jira/browse/JBPM-831?page=comments#action_12356078 ] 
            
Wenbo Zhu commented on JBPM-831:
--------------------------------

It's fine to rely on the native id generation . .but the generator needs be named explicitly (ideally), to something like <generator class="native" name="jbpm_id_generator">. Otherwise, in a production system, a jBPM schema upgrade will wipe out the existing id-generator (such as Oracle hibernate_sequence) that may be used by other systems.



> avoid using default id generator
> --------------------------------
>
>                 Key: JBPM-831
>                 URL: http://jira.jboss.com/jira/browse/JBPM-831
>             Project: JBoss jBPM
>          Issue Type: Feature Request
>          Components: Core Engine
>    Affects Versions:  jBPM 3.1.2
>         Environment: The problem is common to all platform. 
> Issue is identifed on Oracle 9.1 specifically.
>            Reporter: Wenbo Zhu
>         Assigned To: Tom Baeyens
>
> The Id generator should be named explicitly, which is currently not.
>     <id name="id" column="ID_"><generator class="native" /></id>
> This will introdcue issue when jbpm schema has to be updated (dropped, e.g.) as the db may be shared with other apps that uses default hibernate id generator too .. in case of Oracle, it's "hibernate_sequence".
> - Wenbo

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