[jira] [Created] (UIMA-4541) CasCopier edge use case copies multiple DocumentAnnotation instances

["Marshall Schor (JIRA)" <de...@uima.apache.org>]

Marshall Schor created UIMA-4541:
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             Summary: CasCopier edge use case copies multiple DocumentAnnotation instances
                 Key: UIMA-4541
                 URL: https://issues.apache.org/jira/browse/UIMA-4541
             Project: UIMA
          Issue Type: Bug
          Components: Core Java Framework
    Affects Versions: 2.7.0SDK
            Reporter: Marshall Schor
            Assignee: Marshall Schor
             Fix For: 2.8.1SDK


The normal envisioned use case for the cas copier is
1) make an instance of the cas copier, specifying the two CASs
2) do an operation (copy a cas, copy a cas-view, copy some FSs)

Some users are in a sense reusing the cas copier instance; they make an instance, and then copy some FSs, and then maybe copy a view.  The general contract for the CasCopier instance is that it "remembers" what FSs have been copied, and doesn't copy them again. 

There was an optimization that tried to speed up the isDocumentAnnotation test - the casCopier instance remembers what the srcCasDocumentAnnotation is, once it's looked up.  Unfortunately, each view has its own; there was code to re-look it up but it wasn't being set for all possible user invoked paths.  

Note this is only an issue for use cases which are using the same casCopier instance both for copying individual FSs and for copying views.  



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