Re: [wsrp-interop] cloneBeforeWrite when using ProducerOfferedPortlets

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

Producers not exposing the PortletManagement
portType can not do clones anyway as there would be no way for the Consumer
to destroy a clone. We added a conformance statement to this effect late
in the development of the spec.

Rich Thompson

"Richard Jacob" <richard.jacob@de.ibm.com> 06/27/2003 12:50 PM

To:        wsrp-interop@lists.oasis-open.org         cc:                 Subject:        [wsrp-interop] cloneBeforeWrite when using ProducerOfferedPortlets

Hi,

the Oracle producer throws a StateChangeRequiredFault if our consumer uses
a producer offered portlet (POP) and wants to change the persistent state
in edit mode of portlet E:0:default for example.
We have the InteractionParams.stateChange set to "readwrite"
allowing the
producer to write.

I think the flag hasUserSpecificState in PortletDescription encourages
the
consumer to clone, but it is not required to clone.
I think if a consumer using a POP allows the portlet to change its state,
the producer should perform a clone before write here.
The spec says for the PortletStateChangeRequiredFault:  Used when
a Portlet
needs to modify its persistent state, but has been prevented from doing
so.
So my understanding is that this fault should only be thrown if the
consumer indicates "readonly" to the portlet but the portlet
needs to
change its persistent state on an action.

If we interpreted the flag hasUserSpecificState=true as the requirement
to
clone, producers not exposing the PortletManagement interface could never
have portlets that change their persistent state.

What do people think?

Mit freundlichen Gruessen / best regards,

        Richard Jacob
______________________________________________________
IBM Lab Boeblingen, Germany
Dept.8288, WebSphere Portal Server Development
Phone: ++49 7031 16-3469  -  Fax: ++49 7031 16-4888
Email: mailto:richard.jacob@de.ibm.com


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