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

[Edson Tirelli (JIRA)]

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: 5.0.1.FINAL, 5.0.0.FINAL
            Reporter: Edson Tirelli
            Assignee: Edson Tirelli
             Fix For: 5.1.0.M1


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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