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From Michael Gentry <>
Subject Re: Cayenne own template renderer to replace Velocity
Date Fri, 11 Aug 2017 11:21:02 GMT
I haven't looked into the details, but I like the idea of reducing
dependencies upon external libraries, which can cause headaches with
applications using Cayenne.

I'm assuming the template engine will be injectable so that you can choose
Velocity, Freemarker, etc if you'd like?  (Of course, you might have to
create a bridge to your template engine of choice, but be able to inject
that bridge into Cayenne.)



On Thu, Aug 10, 2017 at 5:35 AM, Nikita Timofeev <>

> Hi all,
> I've opened a PR [1] just now with new SQLTemplateProcessor
> implementation based on new Cayenne own parser (instead of Velocity).
> It doesn't support all features of Velocity but it's enough to
> seamlessly replace Velocity in all core and test code in Cayenne, plus
> it's faster (up to x15 in case of cache hit) and should have less
> memory footprint (though I've only checked speed and memory is my
> guess as new parser smaller and have no runtime).
> Plus cayenne-server now free of velocity and commons-lang
> dependencies, next step will be removing of commons-collections (it
> will be the last one).
> VelocitySQLTemplateProcessor now comes in optional auto-loaded module
> (cayenne-velocity), so if you relied on some advanced features of
> Velocity in your SQLTemplates you still can use it. And Velocity is
> still used for cgen templates.
> See PR [1] and Jira ticket [2] for details.
> Any thoughts or concerns?
> [1]
> [2]
> --
> Best regards,
> Nikita Timofeev

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