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Subject: RE: [wsrp] [wsia] [wsrp-wsia joint interfaces] agenda for Tuesday 11June
Comments below, under <GT> -----Original Message----- From: Carsten Leue [mailto:CLEUE@de.ibm.com] Sent: Tuesday, June 11, 2002 11:19 To: Gil Tayar Cc: thomas klein6; 'wsia@lists.oasis-open.org'; 'wsrp@lists.oasis-open.org' Subject: RE: [wsrp] [wsia] [wsrp-wsia joint interfaces] agenda for Tuesday 11 June Gil - 1-3: the consumer MUST explicitly create entities (transient or persistent). It can decide to create sessions explicitly if it wants to share them amongs entities, otherwise it can let the producer create sessions on the fly. <GT> OK. The question is, what sequence of APIs makes the Consumer share sessions among entities? Is the answer - createSession (once), createTransient/PersistentEntity (multiple times), getFragment(session (one), entity (multiple)) [for each of the entities]? </GT> 4: the decision to have multiple entities per session is up to the consumer who make this choice based on the producer's metadata. e.g think of portlets that form a shop together. These would want to share a session with each other. But the consumer could decide to have two shops of the same type on the same page. Then there would be two sessions and only the consumer could know what portlet shares what session. <GT> How does the Producer indicate that they need a sharing of sessions? Is this indicated in the document? Is a Producer a container of services (ala Mike's notion), or is it one service? </GT> 5: The consumer should create a session before issuing a getFragment call. The entity is created whenever necessary. 6: A Session is a bucket that holds some data (physically on the provider) and times-out after a while. A transient entity is a remote portlet that does not store any data in a DB. Hope that helped. Best regards Carsten Leue ------- Dr. Carsten Leue Dept.8288, IBM Laboratory Böblingen , Germany Tel.: +49-7031-16-4603, Fax: +49-7031-16-4401 |---------+----------------------------> | | Gil Tayar | | | <Gil.Tayar@webcol| | | lage.com> | | | | | | 06/11/2002 09:28 | | | AM | | | Please respond to| | | Gil Tayar | | | | |---------+----------------------------> >--------------------------------------------------------------------------- ------------------------------------------------------------------| | | | To: Carsten Leue/Germany/IBM@IBMDE | | cc: "'wsia@lists.oasis-open.org'" <wsia@lists.oasis-open.org>, "'wsrp@lists.oasis-open.org'" <wsrp@lists.oasis-open.org>, Thomas| | Klein6/Germany/IBM@IBMDE | | Subject: RE: [wsrp] [wsia] [wsrp-wsia joint interfaces] agenda for Tuesday 11 June | | | | | >--------------------------------------------------------------------------- ------------------------------------------------------------------| Carsten, could you clarify some things for me? 1. If sessions and entities are orthogonal, what SHOULD the Consumer do? 2. SHOULD it create a transient entity _and_ a session? 3. MUST it do so? 4. Who gets to decide whether there are multiple entities per session or multiple sessions per entities? 5. When SHOULD a Consumer create a session and when a transient entity? 6. What _is_ a session, logically? What _is_ a transient entity? Gil -----Original Message----- From: Carsten Leue [mailto:CLEUE@de.ibm.com] Sent: Tuesday, June 11, 2002 08:45 To: Alan Kropp Cc: 'wsia@lists.oasis-open.org'; 'wsrp@lists.oasis-open.org'; thomas klein6 Subject: Re: [wsrp] [wsia] [wsrp-wsia joint interfaces] agenda for Tuesday 11 June Alan - some first thoughts 1. the general concept is that entities (transient or persistent) and sessions are orthogonal. There might be mulitple entities per session and (at least for persistent entities) multiple sessions per entity. An example for the first case would be that entities share session data within the same user request. An example for the second case are portlets on a common page (group page) that are access simultaneously by multiple users. A transient entity differs from a persistent entity in that its data does not persist and its lifecycle is coupled with the session life cycle. 2. Eilon pointed out in a comment to the interface proposal that batch processing is already part of SOAP. I was not aware of that and will look it up until the call. Best regards Carsten Leue ------- Dr. Carsten Leue Dept.8288, IBM Laboratory Böblingen , Germany Tel.: +49-7031-16-4603, Fax: +49-7031-16-4401 |---------+----------------------------> | | Alan Kropp | | | <akropp@epicentri| | | c.com> | | | | | | 06/11/2002 01:54 | | | AM | | | Please respond to| | | Alan Kropp | | | | |---------+----------------------------> > --------------------------------------------------------------------------- ------------------------------------------------------------------| | | | To: "'wsrp@lists.oasis-open.org'" <wsrp@lists.oasis-open.org>, "'wsia@lists.oasis-open.org'" <wsia@lists.oasis-open.org> | | cc: | | Subject: [wsrp] [wsia] [wsrp-wsia joint interfaces] agenda for Tuesday 11 June | | | | | > --------------------------------------------------------------------------- ------------------------------------------------------------------| I think we'll have plenty of discussion around the merged document Rich and Carsten put together. The two main issues I see that have arisen on the email lists are: 1. What is the difference between transient entities and sessions, and is there enough of a distinction to warrant including both in the specification? 2. There are efficiency concerns around the use of arrays in the method signatures, basically to enable batched requests for network efficiency. Call-in numbers: USA Toll Free Number: 877-718-0936 USA Toll Number: +1-712-923-6878 PARTICIPANT PASSCODE: 563151 Alan ---------------------------------------------------------------- To subscribe or unsubscribe from this elist use the subscription manager: <http://lists.oasis-open.org/ob/adm.pl> ---------------------------------------------------------------- To subscribe or unsubscribe from this elist use the subscription manager: <http://lists.oasis-open.org/ob/adm.pl>
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