Carsten Ziegeler a écrit :
>
> Hi,
>
> I currently run into the problem that I created pipelines which I
> thought were possible, but currently are not support by Cocoon:
>
> It is not possible to nest anything other than a map:part into
> a map:aggregate, so the following doesn't work:
> <map:aggregate>
> <map:select type="test">
> <map:when test="a">
> <map:part src="a"/>
> </map:when>
> <map:otherwise>
> <map:part src="b"/>
> </map:otherwise>
> </map:select>
> <map:part src="constant"/>
> </map:aggregate>
>
> Is this a bug or is this by design?
> My personal opinion is, that this should be possible.
I guess this is by design. The above can be written as follows :
<map:match pattern="variablepart.xml">
<map:select type="test">
<map:when test="a">
<map:generate src="a"/>
</map:when>
<map:otherwise>
<map:generate src="b"/>
</map:otherwise>
</map:select>
<map:serialize/>
</map:match>
<map:match pattern="...">
<map:aggregate>
<map:part src="cocoon:/variablepart.xml"/>
<map:part src="constant"/>
</map:aggregate>
</map:match>
It is sure less readable, but if we allow statements other than
<map:part> in <map:aggregate>, people will certainly soon ask for
<map:generate> or <map:transform> inside <map:part> !
> Another restriction we currently have is already entered as a bug with
> the number 4357: An Action is not possible as a root element inside
> a map:pipeline, only map:match can be a used as a root element.
> So here again, is this by design?
This was allowed before we faced the 64 kbytes bytecode limit in the
generated class. IIRC, you were the one that faced this ;)
We then decided to break the generated code into submethods based on
map:pipeline/map:match which as a side effect forbids any other
top-level construct.
So this restriction is not "by design", but "by implementation" ! The
TreeProcessor (still have to write views for it to be finished) doesn't
have this limitation.
> I think we shouldn't make such restrictions. But at least if we make
> these restrictions we should document them.
>
> Regards,
> Carsten
>
Sylvain
--
Sylvain Wallez
Anyware Technologies - http://www.anyware-tech.com
---------------------------------------------------------------------
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, email: [EMAIL PROTECTED]
