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From: Chunyang Y. <cy...@ot...> - 2002-08-16 06:37:01
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From: Anthony E. <me...@an...> - 2002-08-15 12:30:09
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I see what you are saying. I was sort of worried about issues with using a stack to store the thread sets, but I am really not sure how else to do it. Any thoughts? -Anthony > -----Original Message----- > From: obe...@li...=20 > [mailto:obe...@li...] On Behalf=20 > Of Chunyang Ye > Sent: Thursday, August 15, 2002 1:39 AM > To: obe...@li... > Subject: [Obe-developer] question about the JoinMonitor >=20 >=20 > Dear Anthony Eden,I have a question about the JoinMonitor.In=20 > the implementation, when an AND split occurs,each new created=20 > thread is added to a new created ThreadSet=20 > and the ThreadSet is pushed onto the current process=20 > instance's stack.when a join is=20 > reached,the top thread set is popped off of the stack and a=20 > joinMonitor is created. I don't think the ThreadSet popped=20 > off the stack is just the ThreadSet of current=20 > activity's former activities's thread set.For example,the=20 > following case could not work: > =20 > (1) | | > / \ | | > (2) (3) ThreadSet1 | | > / \ / |------------| > ThreadSet2 (4) (5) / | ThreadSet2 | > \ / / |------------|=20 > \ / / | ThreasSet1 | > ( 6 ) -------------- > =20 > When activity 1 is finished,an AND split occurs,ThreadSet1 is=20 > created and threads of=20 > activity2 and activity3 is added to ThreadSet1.Then=20 > ThreadSet1 is pushed onto stack, activity2 and activity3 are=20 > concurrently executed.Maybe activity3 has a long time to=20 > run and activity2 is finished quickly.So another AND split=20 > occurs,ThreadSet2 is created, include threads of activity4=20 > and activity5, and pushed onto stack.when activity4 and=20 > activity5 are finished,activity3 hasn't been finished=20 > yet,then an AND join occurs. ThreadSet2 is popped off the=20 > stack and a JoinMonitor is created.Because the threads in=20 > ThreadSet2 are all terminated,the JoinMonitor is stopped and=20 > activity6 is executed, but activity3 isn't finished yet,and=20 > activity6 shouldn't be executed. > =20 > Sincerely, > Chunyang Ye > N=B1=B5=8A=B2=B2uH=8A=A1j=99u=96=9D=B5=C2y=15=86=B3=C3=A6=89=9B >=20 |
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From: Chunyang Y. <cy...@ot...> - 2002-08-15 05:38:19
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From: Chunyang Y. <cy...@ot...> - 2002-08-15 02:59:46
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From: Chunyang Y. <cy...@ot...> - 2002-08-15 01:12:50
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From: Anthony E. <me...@an...> - 2002-08-14 18:40:22
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Right now the Package object and its children are serializable to an XPDL format using the XPDLParser and XPDLSerializer classes. I didn't really consider making the objects in the core serializable, but I would consider it. Is there any reason to use Java serialization as opposed to serialization to the XPDL standard? Sincerely, Anthony Eden > -----Original Message----- > From: obe...@li... > [mailto:obe...@li...] On Behalf > Of ja...@pe... > Sent: Wednesday, August 14, 2002 12:56 PM > To: Obe...@li... > Subject: [Obe-developer] obe core Package is not Serializable ... > > > Hihi, > > Any plans to make the 'Package' class serializable ? > Obviously, child objects contained within 'Package' > would also need to be serializable. > > Jason. > > > ------------------------------------------------------- > This sf.net email is sponsored by: Dice - The leading online > job board for high-tech professionals. Search and apply for > tech jobs today! http://seeker.dice.com/seeker.epl?rel_code=31 > _______________________________________________ > Obe-developer mailing list > Obe...@li... > https://lists.sourceforge.net/lists/listinfo/obe-developer > |
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From: <ja...@pe...> - 2002-08-14 16:56:33
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Hihi, Any plans to make the 'Package' class serializable ? Obviously, child objects contained within 'Package' would also need to be serializable. Jason. |
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From: Anthony E. <me...@an...> - 2002-08-02 02:59:08
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I have never actually used a workflow engine like OBE in a production system. I have created workflow-like processes that were hard coded for e-commerce situations. For example, a typical transaction might involve: - Pre Auth Credit Card - Send Order to Warehouse - Post Auth Credit Card - Generate and Send Receipt - Record sale in database And so on. This is a good situation where workflow is useful. There are lots of other cases as well. I think the main reason it has taken so long to take off is that workflow has typically been reserved for large organizations with extremely complex business processes because the cost of ownership was so high. I think the next year or two will result in a larger amount of usage because inexpensive and open source solutions are starting to appear. The key is to make the tools easy to use and install. As for OBE itself, I don't think it is quite ready for a production system. I need to work out some more of the runtime details and release some of the tools such as the designer before it will be really useable. Sincerely, Anthony Eden -----Original Message----- From: obe...@li... [mailto:obe...@li...] On Behalf Of Li Ma Sent: Thursday, August 01, 2002 9:16 PM To: obe...@li... Subject: [Obe-developer] Any real life usage of OBE? I'm interested in concept of Workflow. But seams like it's been moving very slowly in tghe industry. Lot of spec on WfCM was still made in mid-90's. I'm wondering if anyone ever used or seen anyone used workflow, better be OBE, in real life project? And under what circumstance is it used? Thanks! -Li --------------- li...@em... _____ Do You Yahoo!? Yahoo! Health <http://health.yahoo.com/> - Feel better, live better |
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From: Li Ma <li_...@ya...> - 2002-08-02 01:16:09
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I'm interested in concept of Workflow. But seams like it's been moving very slowly in tghe industry. Lot of spec on WfCM was still made in mid-90's. I'm wondering if anyone ever used or seen anyone used workflow, better be OBE, in real life project? And under what circumstance is it used? Thanks! -Li --------------- li...@em... --------------------------------- Do You Yahoo!? Yahoo! Health - Feel better, live better |
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From: Anthony E. <me...@an...> - 2002-08-01 22:18:46
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> -----Original Message----- > From: obe...@li... > [mailto:obe...@li...] On Behalf > Of Setera, Craig > Sent: Thursday, August 01, 2002 5:23 PM > To: 'obe...@li...' > Subject: [Obe-developer] Which version of XPDL is supported? > > > I've just started looking into workflow and stumbled onto OBE > and XPDL. I'm still trying to tackle and understand all of > this. I just noticed today that they added a new Version 1.0 > Beta of the XPDL document to the WfMC web site. Does OBE > cover handle this version? If not, how close is it? OBE currently uses the XPDL DTD version 0.03a. I will look into what changes have occurred in the new type definition. Of course, the fact that it uses XSchema as opposed to a DTD means it will take a little longer since I can't really put them side-by-side and diff them. Go WfMC. Off of the top of my head I do see some variations: Additions: - ActivitySets and ActivitySet elements - Activity Deadline element - Application ExternalReference element - Script element - SchemaType element - BlockActivity element - WorkflowProcess AccessLevel attribute Changes: - The type definitions have been modified All in all I think it will take a little time to support these new elements. > On a related note, is there any schedule or roadmap for OBE? > It looks like it is in pretty good shape from what I've seen, > but I also see a number of pieces (designer, etc) in CVS that > haven't been released at all yet. There is no roadmap at the moment because it is dependent on what kind of time I have to dedicate to it. The plan on the designer is to finish up a first alpha release within the next couple of weeks. I need to read through the updated specification and make necessary updates as well and will probably do that next week. Naturally, if you want to see it go faster then contributions are always welcome. :-) Sincerely, Anthony Eden |
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From: Setera, C. <Cra...@Ki...> - 2002-08-01 21:26:25
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I've just started looking into workflow and stumbled onto OBE and XPDL. I'm still trying to tackle and understand all of this. I just noticed today that they added a new Version 1.0 Beta of the XPDL document to the WfMC web site. Does OBE cover handle this version? If not, how close is it? On a related note, is there any schedule or roadmap for OBE? It looks like it is in pretty good shape from what I've seen, but I also see a number of pieces (designer, etc) in CVS that haven't been released at all yet. Thanks, Craig Craig Setera Sun Certified Java Programmer/Developer/Web Component Developer Senior Software Architect, Kingland Systems Corporation |
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From: Anthony E. <me...@an...> - 2002-07-31 12:15:11
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I forgot to explain how Jython is being used. Jython is currently used as the expression language for conditions. Sincerely, Anthony Eden > > -----Original Message----- > > From: obe...@li... > > [mailto:obe...@li...] On Behalf > > Of Verscharen, Joe > > Sent: Tuesday, July 30, 2002 2:01 PM > > To: 'obe...@li...' > > Subject: [Obe-developer] How is Jython being utilized? > > > > > > Also in the obedesigner, I have not been able to add my own > > subflows even > > though I see these in the examples, any idea on what I'm > > missing? > > The sub flow selector appears to be broken. I will take a > look at it today and let you know when it is fixed. > > Sincerely, > Anthony Eden > > > > ------------------------------------------------------- > This sf.net email is sponsored by: Dice - The leading online > job board for high-tech professionals. Search and apply for > tech jobs today! http://seeker.dice.com/seeker.epl?rel_code=31 > _______________________________________________ > Obe-developer mailing list > Obe...@li... > https://lists.sourceforge.net/lists/listinfo/obe-developer > |
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From: Anthony E. <me...@an...> - 2002-07-31 12:06:29
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> -----Original Message----- > From: obe...@li... > [mailto:obe...@li...] On Behalf > Of Verscharen, Joe > Sent: Tuesday, July 30, 2002 2:01 PM > To: 'obe...@li...' > Subject: [Obe-developer] How is Jython being utilized? > > > Also in the obedesigner, I have not been able to add my own > subflows even > though I see these in the examples, any idea on what I'm > missing? The sub flow selector appears to be broken. I will take a look at it today and let you know when it is fixed. Sincerely, Anthony Eden |
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From: Verscharen, J. <Joe...@te...> - 2002-07-30 18:56:33
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Also in the obedesigner, I have not been able to add my own subflows even though I see these in the examples, any idea on what I'm missing? I've just starting looking at this today, it looks great especially, obedesigner. |
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From: Anthony E. <me...@an...> - 2002-07-30 12:52:01
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Take a look at the OBE Test example which is available for download at http://www.openbusinessengine.org/ . The test application shows how you can embed the OBE Engine in your applications (which is the method for execution at the moment). Sincerely, Anthony Eden > -----Original Message----- > From: obe...@li... > [mailto:obe...@li...] On Behalf > Of heh...@vi... > Sent: Tuesday, July 30, 2002 8:37 AM > To: obe...@li... > Subject: [Obe-developer] how to start obeengine .thanks > > > > ______________________________________ > > =================================================================== > > > ------------------------------------------------------- > This sf.net email is sponsored by: Dice - The leading online > job board for high-tech professionals. Search and apply for > tech jobs today! http://seeker.dice.com/seeker.epl?rel_code=31 > _______________________________________________ > Obe-developer mailing list > Obe...@li... > https://lists.sourceforge.net/lists/listinfo/obe-developer > |
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From: <heh...@vi...> - 2002-07-30 12:41:58
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______________________________________ =================================================================== |
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From: Anthony E. <me...@an...> - 2002-06-26 14:37:51
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I am trying to finish up the rewrite of OBE so that it conforms to the WfMC's XPDL specification. The engine is almost complete. It has been quite a challenge to rewrite OBE from scratch in order to conform to the XPDL (OBE actually creates an in-memory type-safe object model which represents the XPDL document). Hopefully I will release the engine within the next couple of weeks as a 1.0 beta followed shortly thereafter by the OBE Designer (the GUI tool for designing XPDL documents). You can also download the code from the CVS server and build it using Ant to see what OBE does right now. Sincerely, Anthony Eden > -----Original Message----- > From: obe...@li... > [mailto:obe...@li...]On Behalf Of Shailesh > Sent: Wednesday, June 26, 2002 5:14 AM > To: obe...@li... > Subject: [Obe-developer] Release > > > Hi, > > I am currently working on the osworkflow from opensymphony. There in one of > the mail archives I came to know about you. Went through your site. Obe does > look promising. > > I was keen on knowing, when are you planning to release it ? > > regards > Shailesh > > > > ------------------------------------------------------- > This sf.net email is sponsored by: Jabber Inc. > Don't miss the IM event of the season | Special offer for OSDN members! > JabConf 2002, Aug. 20-22, Keystone, CO http://www.jabberconf.com/osdn > _______________________________________________ > Obe-developer mailing list > Obe...@li... > https://lists.sourceforge.net/lists/listinfo/obe-developer > |
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From: Shailesh <SSr...@ic...> - 2002-06-26 09:10:36
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Hi, I am currently working on the osworkflow from opensymphony. There in one of the mail archives I came to know about you. Went through your site. Obe does look promising. I was keen on knowing, when are you planning to release it ? regards Shailesh |
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