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https://issues.apache.org/jira/browse/TAP5-1281?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thiago H. de Paula Figueiredo closed TAP5-1281.
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    Resolution: Won't Fix

With regard to a global service, Davor Hrg already explained how to achieve 
that.
Having a class per page is one Tapestry architectural decision that was done 
after analyzing Tapestry 4, which had it. It only increased complexity and made 
learning Tapestry more complex, not simpler
Your example seems to ask for template-driven logic, something that definitely 
goes against Tapestry's phylosophy.
Please post your ideas in the Tapestry dev mailing list before posting here. 
That is the place to discuss Tapestry features, not here.

> Simplifications for lightweight Tapestry5 projects
> --------------------------------------------------
>
>                 Key: TAP5-1281
>                 URL: https://issues.apache.org/jira/browse/TAP5-1281
>             Project: Tapestry 5
>          Issue Type: New Feature
>          Components: tapestry-core
>    Affects Versions: 5.0.15
>            Reporter: Tobias Marx
>            Priority: Minor
>
> In order to simplify Tapestry5 even further i would like to suggest the 
> following:
> - auto-creation of "empty" page and component classes if they don't exist at 
> runtime (to reduce number of lines of code, especially for small projects & 
> demos)
> - being able to reference a "global" service by default from within the 
> templates where all database queries / persistence queries can be placed
> This way, you could create quite complex web applications with only a few 
> files:
> - a layout templates
> -  x template files for all pages (instead of 2*x)
> -  y template files for all components (instead of 2*y)
> - one "global" service as an additional file that contains all 
> hibernate/persistance queries
> This would cater of all users that want to create lightweight websites with 
> only as many lines of code/files as really needed. 
> A lot of website can be implemented just by querying data  and displaying 
> them in a template (loop)
> The idea:
> - reduce the lines of code for small / medium projects
> - create even more convincing Tapestry demos (vs. RoR/PHP)
> - increase acceptance by more users checking Tapestry out for the first time

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