+0

Thanks,
Marius

On Fri, Oct 14, 2011 at 10:53 AM, Vincent Massol <[email protected]> wrote:
> Hi devs,
>
> I'd like to propose to improve the Component Override mechanism (currently 
> based on component-overrides.txt, see 
> http://extensions.xwiki.org/xwiki/bin/view/Extension/Component+Module#HOverrides).
>  We have a limitation right now in that we can only have one level of 
> override. The issue is that we need more levels even right now since we have 
> component impls in xwiki-commons or xwiki-rendering that are overridden in 
> xwiki-platform (thus using component-overrides.txt). This means that users 
> cannot provide their own implementations.
>
> Thus I'd like to propose the following:
>
> * Deprecate the component-overrides.txt file
> * Add an optional priority level number that you can specify in the 
> components.txt
> * I propose the following format in components.txt: <priority level>:<full 
> package path to implementation as it is now>. Ex: 
> 1000:org.xwiki.rendering.internal.macro.DefaultMacroManager
> * Use a default priority of 1000 when not specified (same as for our Macro)
> * Guarantee in the documentation that all components that the XWiki project 
> provides never have priorities under, say, 100. This is so that users who 
> want to override know that if they use a priority under 100 their impls will 
> always win.
> * Use a priority of 500 in platform when overriding components found in 
> commons or rendering.
>
> Here's my +1
>
> Thanks
> -Vincent
>
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