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From Marshall Schor <...@schor.com>
Subject Re: Generating types with maven
Date Wed, 11 Jul 2012 17:50:38 GMT

On 7/11/2012 12:10 PM, Peter Klügl wrote:
>  Ah, ok. My mistake. I've seen this in my workspace some time ago (probably
> was not uimaj, but cleartk, dkpro or something) and got a bit confused now.
> Since the types are generated, I thought that this is also supported in our
> build process.
> Generating the types (those with no extra code) and not storing them in the
> SVN sounds reasonable to me. Especially since the file changes when you call
> JCasGen, e.g., " * Updated by JCasGen Wed Jul 11 15:10:37 CEST 2012". What do
> you think?

An issue to consider:

Type systems often reference other type systems.  JCasGen does the official UIMA
"merge" of all the type systems referenced, at generation time.  Sometimes this
is wanted, other times, this is not wanted (see
https://issues.apache.org/jira/browse/UIMA-1176 ). 

User code references the generated JCas type system cover classes.  If these
were not available in SVN, the generate step would be needed to be run.  I
suppose we could develop a maven plugin that did this; it would need access to
the referenced type systems (see above).  And m2e (for Eclipse) would need some
setup to get this to run at load time.

> Peter
> On 11.07.2012 17:57, Marshall Schor wrote:
>> On 7/11/2012 8:56 AM, Peter Klügl wrote:
>>>   Hi,
>>> just a short question:
>>> Can someone give me a hint how the types (e.g., PersonTitle.java,
>>> PersonTitle_Type.java) are automatically generated during the maven build,
>>> e.g., a pointer to a project/pom?
>> Types are generated by the JCasGen tool.  For people who use the Eclipse IDE,
>> there's a UIMA plugin for Eclipse that provides a form-based editor for the UIMA
>> XML descriptors, and for those descriptors which involve type systems, it
>> provides a push-button to run the tool and add the generated classes to your
>> Eclipse project sources.
>> For those not using the Eclipse IDE, the JCasGen tool can be run from the
>> command line.  This tool is documented in our documentation, here:
>> http://uima.apache.org/d/uimaj-2.4.0/tools.html#ugr.tools.jcasgen
>>> I probably overlooked something, but I haven't found any plugin definition in
>>> the parent pom (in my workspace). The uimaj-examples project already contains
>>> the types in the SVN (should they be there?)
>> Yes, they should be there.
>>> and the DictionaryAnnotator (trunk) does not build in my workspace right now.
>> There was a recent change to this that is being rolled back.  See
>> https://issues.apache.org/jira/browse/UIMA-2430
>> Maybe that affected the build (I haven't tried myself, yet).
>> -Marshall
>>> Best,
>>> Peter

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