Re: [wsrp-interop] cloneBeforeWrite when using ProducerOfferedPortlets

[Michael Freedman <Michael.Freedman@oracle.com>]

Richard,
    Given the various replies to this do you now agree that your 
Consumer contains a "bug" in that a POP can only write state if its 
cloned and it can only clone if InteractionParams.stateChange = 
cloneOnWrite?
I.e. the fault will be thrown if either a readOnly is sent and you need 
to write or the entity is a POP and cloneOnWrite isn't sent.

As for interpreting hasUserSpecificState, pelase see/comment on my other 
e-mail.  I don't want this to mean consumer must clone rather I want 
this to mean the portlet supports cloning.  Currently the spec provides 
no way for a consumer to determine if a portlet supports cloning.  It 
can only determine if a producer does -- hence can only detect the 
situation that no portlets support cloning.
     -Mike-

Richard Jacob wrote:

>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
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>Email: mailto:richard.jacob@de.ibm.com
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