Thread: [Embedlets-dev] Fair warning....
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From: Andrzej J. T. <an...@ch...> - 2003-07-17 14:41:06
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...my gig at The Hartford is winding down, and so....in my best Arnold voice: I'LL BE BACK! I'm playing a bit of catchup on the lists for the last couple of months and will be posting some thoughts/ideas on things like Container Architecture, JXTA/JINI, PicoContainer, some derogatory comments about Java chips in the latest Embedded Systems rag and more... Hope to get back to slinging some more Embedlets code shortly, before I get trapped into another heads down gig. Chris...maybe I can help you get past the Persistence integration and other design issues.... Stay tuned. (That's a threat...not a promise <grins>). Andrzej Jan Taramina Chaeron Corporation: Enterprise System Solutions http://www.chaeron.com |
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From: Ted K. <tk...@ya...> - 2003-07-17 16:35:50
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Andrzej wrote: > I'LL BE BACK! Geez Andrzej, when I read your "Fair Warning" subject line I thought perhaps you were going to give us some bad news! Anyway, it is going to be very good to have you back. Ted __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com |
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From: James C. <ca...@vi...> - 2003-07-18 18:31:40
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Feels like the gang is getting some clean air again :-) James Caska www.muvium.com uVM - 'Java Bred for Embedded' -----Original Message----- From: emb...@li... [mailto:emb...@li...] On Behalf Of Ted Kosan Sent: Thursday, 17 July 2003 6:36 PM To: emb...@li... Subject: Re: [Embedlets-dev] Fair warning.... Topic tags:[ARCH][JAPL][WIRING][DOCS][MGMT][STRATEGY][NEWBIE] _______________________________________________ Andrzej wrote: > I'LL BE BACK! Geez Andrzej, when I read your "Fair Warning" subject line I thought perhaps you were going to give us some bad news! Anyway, it is going to be very good to have you back. Ted __________________________________ Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! http://sbc.yahoo.com ------------------------------------------------------- This SF.net email is sponsored by: VM Ware With VMware you can run multiple operating systems on a single machine. WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines at the same time. Free trial click here: http://www.vmware.com/wl/offer/345/0 _______________________________________________ Embedlets-developer mailing list Emb...@li... https://lists.sourceforge.net/lists/listinfo/embedlets-developer |
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From: Christopher S. <cs...@oo...> - 2003-07-21 18:35:35
Attachments:
Counter.java
CounterContext.java
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Andrzej, The approach that I have taken is an attempt to accomplish three objectives: 1. A reduced embedlet footprint for the low end uVm type processors. 2. A flexible context/persistence structure. The idea is to remove context awareness from the Embedlets and apply an adapter pattern to the components in order to integrate with the context infrastructure. In this design the Embedlet is created with the lifecycle methods and standard bean patterns to expose the properties. The Embedlet is decoupled form the specifics of the container environment unless it is required for the task at hand eg. external communication or logging. A system could be built without the complexities of the context environment by 'hard-wiring' the components in an initialization method of the container, thus allowing 'Level I' containers to provide streamlined Embedlet systems. The 'Level II' Containers would provide initialization context by matching the 'Level I' Embedlets with a context adpater. The type and level of service provided by the adapter would be defined by the vendor and may include local flash based initialization, remote configuration or full persistence. This will allow the same Embedlet code to scale to the container environment. Here is an example of a component and it's context/persistence adapter as well as the xml snippet for initialization. <Component identity="COUNTER_001" class="org.outpost.components.digital.CounterContext" emb.description="Watch Dog Counter" initialValue="0" threshold=10000 thresholdAction=0> <producer href="TOGGLE_01"/> </Component> I am testing a three component Embedlet system with this approach. The system is made up of a timer, a binary toggle and a counter, wired together with the synchronous event model. Chris > > Topic tags:[ARCH][JAPL][WIRING][DOCS][MGMT][STRATEGY][NEWBIE] > _______________________________________________ > > ...my gig at The Hartford is winding down, and so....in my best > Arnold voice: > > I'LL BE BACK! > > I'm playing a bit of catchup on the lists for the last couple of > months and > will be posting some thoughts/ideas on things like Container > Architecture, > JXTA/JINI, PicoContainer, some derogatory comments about Java > chips in the > latest Embedded Systems rag and more... > > Hope to get back to slinging some more Embedlets code shortly, > before I get > trapped into another heads down gig. Chris...maybe I can help > you get past > the Persistence integration and other design issues.... > > Stay tuned. (That's a threat...not a promise <grins>). > > Andrzej Jan Taramina > Chaeron Corporation: Enterprise System Solutions > http://www.chaeron.com > > > > ------------------------------------------------------- > This SF.net email is sponsored by: VM Ware > With VMware you can run multiple operating systems on a single machine. > WITHOUT REBOOTING! Mix Linux / Windows / Novell virtual machines at the > same time. Free trial click here: http://www.vmware.com/wl/offer/345/0 > _______________________________________________ > Embedlets-developer mailing list > Emb...@li... > https://lists.sourceforge.net/lists/listinfo/embedlets-developer > |
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