Multiple schema extensions on the same type

[Hedley Roos]

Hi all

Is it possible to extend say Document with both FooExtender and
BarExtender using schema extender?

The respective zcml is then
<adapter factory=".foo.FooExtender"/> and
<adapter factory=".bar.BarExtender"/>

Both classes do "adapts(Document)".

I find that only one extender wins in this case. Is there a smart way to
register the adapters or should I change BarExtender to adapt
FooExtender instead of Document?

In case you're wondering the one extension is coded by someone else, so
I can't roll them into one module.

Thanks
Hedley

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[David Glick-2]

On Aug 7, 2008, at 4:53 AM, Hedley Roos wrote:

> Hi all
>
> Is it possible to extend say Document with both FooExtender and
> BarExtender using schema extender?
>
> The respective zcml is then
> <adapter factory=".foo.FooExtender"/> and
> <adapter factory=".bar.BarExtender"/>
>
> Both classes do "adapts(Document)".
>
> I find that only one extender wins in this case. Is there a smart  
> way to
> register the adapters or should I change BarExtender to adapt
> FooExtender instead of Document?

Yes, just make sure you register the extenders as *named* adapters  
with different names.  (e.g. <adapter factory=".foo.FooExtender"  
name="foo"/>)

David Glick
Project Associate
ONE/Northwest

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environment

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davidglick@...
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[Hedley Roos-2]

> Yes, just make sure you register the extenders as *named* adapters with
> different names.  (e.g. <adapter factory=".foo.FooExtender" name="foo"/>)
>

Thanks! Works perfectly.

Hedley

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