[jboss-jira] [JBoss JIRA] Commented: (JBRULES-2243) Add support to source code assets to reference each other

[Edson Tirelli (JIRA)]

    [ https://jira.jboss.org/jira/browse/JBRULES-2243?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12499821#action_12499821 ] 

Edson Tirelli commented on JBRULES-2243:
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After discussing this issue with the development team, we are going down a different path with a higher level "assembling" file (e.g. the changeset file, ddj file, etc) that will give instructions to the tools on how to properly assemble kbases from individual resources and resolve cross-file references.

This work is partly done, but tooling must be improved to take advantage of that. I am keeping this ticket open so that we keep track of it, but there are no deadlines for this work right now. 

If you need this for runtime purposes, the changeset descriptor already provide that to some level. Eclipse tooling is not ready though.


> Add support to source code assets to reference each other
> ---------------------------------------------------------
>
>                 Key: JBRULES-2243
>                 URL: https://jira.jboss.org/jira/browse/JBRULES-2243
>             Project: Drools
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: drools-api, drools-compiler, drools-core, drools-eclipse
>    Affects Versions: 5.0.0.FINAL, 5.0.1.FINAL
>            Reporter: Edson Tirelli
>            Assignee: Edson Tirelli
>             Fix For: 5.1.0.M2
>
>
> One asset defined in one DRL should be usable from other DRLs. So we need a way to import them from one file into another, in a similar way as #includes works in C++ or "import" in java, etc.
> So, if I declare a type in DRL1.drl:
> declare XYZ
>   ...
> end
> I can then use it in rules in DRL2.drl:
> uses "DRL1.drl"
> rule "ABC"
> when
>     XYZ(...)
> then
> end
> Same for any other assets like functions. 
> This feature will require proper dependency management to avoid circular dependencies, classloader issues, etc. Also, the IDE will require update to be able to properly reflect these situations without raising false errors.

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