[jboss-jira] [JBoss JIRA] Created: (JBRULES-3143) Knowledge Agent does not handle multiple packages in Builder output from single resource

[Wolfgang Laun (JIRA)]

Knowledge Agent does not handle multiple packages in Builder output from single resource
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                 Key: JBRULES-3143
                 URL: https://issues.jboss.org/browse/JBRULES-3143
             Project: Drools
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: drools-core  (expert)
    Affects Versions: 5.2.0.Final
            Reporter: Wolfgang Laun
            Assignee: Mark Proctor
            Priority: Blocker
             Fix For: 5.2.1.Final


Note: see also https://issues.jboss.org/browse/JBRULES-2940

KnowledgeAgent with a ChecngeSet containing a single DRL:
   package x
   import y.Type
   declare Type
      @role(event)
   end
   //...rules etc.

If this is passed to the builder, it'll return two KnowledgePackageImpl objects, one with name 'x' and another one with name 'y'. But the KA only takes the first package from the Collection of packages returned by the builder.

=!=> KA must process all packages from the builder.

=!=> Incremental kBase building requires diff-ing between old/new packages. This, then, must take into account that contribution to one package can come from several resource builds.

=!=> The idea that the kBuilder should return packages with different names from a single DRL build is probably wrong. If a Drools package foo contains an import bar.Type, then this is still an asset in package foo and needs to be handled as a type reference in foo. Any annotation additions must be carried by that asset foo. (The *Java* package of the imported bar.Type remains of course bar.)


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