Re: [wsrp] RuntimeContext.portletInstanceKey uniqueness requirement

[Rich Thompson <richt2@us.ibm.com>]

I think namespacePrefix is optional
for the same reasons templates are optional. It is required when a Portlet
indicates it does URL template processing.

Rich Thompson

Alejandro Abdelnur <Alejandro.Abdelnur@Sun.COM> 05/20/2003 11:57 AM

To:        Rich Thompson/Watson/IBM@IBMUS         cc:        Alejandro Abdelnur <Alejandro.Abdelnur@Sun.COM>, WSRP OASIS <wsrp@lists.oasis-open.org>         Subject:        Re: [wsrp] RuntimeContext.portletInstanceKey uniqueness requirement

But they are both optional. Shouldn't be namespacePrefix
mandatory, if  
not I don't see much of a use of having 2 optional things for the same
 
purpose.

Alejandro


On Tuesday, May 20, 2003, at 06:30 AM, Rich Thompson wrote:

>
> I would say that there is no overlap between portletInstanceKey and
 
> portletHandle. I understand these as:
>
> portletHandle: Producer defined means of identifying a particular
 
> configured portlet.
>
> portletInstanceKey: Consumer reference to a use of a portletHandle.
 
> Uniqueness is required at registration level. These may come and go
in  
> a manner that appears random to the Producer as portlets are added
to  
> and/or removed from pages.
>
> namespacePrefix: Consumer supplied token which is unique for this
 
> portlet instance on the page currently being aggregated. This token
is  
> allowed to change on the next call requesting markup though it likely
 
> won't as that would make Consumer caching less efficient ....
>
> There is some overlap between namespacePrefix and portletInstanceKey.
 
> We kept the namespacePrefix only because we do not expect all classes
 
> of Consumers to have something to supply as a portletInstanceKey,
but  
> all Consumers can generate something for namespacePrefix.
>
> Rich Thompson
>
>
<image.tiff>
>
>
>
>
>
> I'm a little bit confused with the requirement of portletInstanceKey
to
> be unique within the RegistrationContext. It's kind of a second unique
> key, being the first one the portletHandle. If the purpose is to
> namespace multiple occurrences of the same portlet in the consumer
the
> namespacePrefix should be enough? Or if we want to free the consumer
> from this burden, why do we need the portletHandle then, for the
> consumer the portletInstanceKey would be enough?
>
> What am I missing here?
>
> I should keep re-reading the spec every day not to forget things.
I'm
> under the impression that we are describing each thing well but we
do
> not do a very good job at indicating their contextual purpose.
>
> Thanks
>
> Alejandro
>
>
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