Hi Edward, In some of our actors, we need to change the interface of the actor depending on when the attributes are changed and checking if the values have really changed. An example is the web service actor, where we need to update the ports only if the user has changed the values of the parameters. Knowing where the change occured will be very helpful as it will simplify the code that implements this.
-ilkay On Tue, March 21, 2006 4:39 pm, Edward A. Lee wrote: > > This would enormously complicate the design. > > Before going down this path, I would prefer to understand better why > an actor would care what the source of the parameter change is... > Shouldn't the actor just be told that it's parameter changed? > Why does it matter who initiated the change? > > Edward > > > At 01:24 PM 3/21/2006, Jing Tao wrote: >>Thank you, Edward. >> >>I talked with Ilkay about this issues too. Both of us think it will >>be great if there is a flag in attributeChanged method. Currently >>this method looks like attributeChanged(Attribute attribute). Could >>we add a new one: >>attributeChanged(Attribute attribute, String resource) (resource can >>be another object)? >> >>Thanks, >> >>Jing >> >>Jing Tao >>National Center for Ecological >>Analysis and Synthesis (NCEAS) >>735 State St. Suite 204 >>Santa Barbara, CA 93101 >> >>On Tue, 21 Mar 2006, Edward A. Lee wrote: >> >>>Date: Tue, 21 Mar 2006 11:17:04 -0800 >>>From: Edward A. Lee <[EMAIL PROTECTED]> >>>To: Jing Tao <[EMAIL PROTECTED]> >>>Cc: ptolemy-hackers@eecs.berkeley.edu >>>Subject: Re: AttributeChanged >>> >>>There is no distinction between these. >>>In fact, the UI creates MoML and runs it through the MoML parser... >>> >>>Edward >>> >>>At 04:55 PM 3/20/2006, Jing Tao wrote: >>>>Hi, devs: >>>>I have a actor X and it has a attribute A. Now I am implementing >>>>the behavior of A in attributeChanged method. Unfortunately >>>>attribute A has two different behaviors, one is only for when user >>>>opens a workflow (Momlparser read A value from moml file), the >>>>other is only for when user use actor configuration panel to update A. >>>>Now I have difficuty to implement the attributeChanged method for >>>>attribute A because I couldn't find any information to tell the >>>>different change request. Could anyone point it out to me? >>>>Thanks. >>>>Jing >>>>Jing Tao >>>>National Center for Ecological >>>>Analysis and Synthesis (NCEAS) >>>>735 State St. Suite 204 >>>>Santa Barbara, CA 93101 >>>>---------------------------------------------------------------------------- >>>>Posted to the ptolemy-hackers mailing list. Please send administrative >>>>mail for this list to: >>>> [EMAIL PROTECTED] >>> >>>------------ >>>Edward A. Lee >>>Professor, Chair of the EE Division, Associate Chair of EECS >>>231 Cory Hall, UC Berkeley, Berkeley, CA 94720 >>>phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845 >>>[EMAIL PROTECTED], http://ptolemy.eecs.berkeley.edu/~eal >>>---------------------------------------------------------------------------- >>>Posted to the ptolemy-hackers mailing list. Please send administrative >>>mail for this list to: [EMAIL PROTECTED] >>> > > ------------ > Edward A. Lee > Professor, Chair of the EE Division, Associate Chair of EECS > 231 Cory Hall, UC Berkeley, Berkeley, CA 94720 > phone: 510-642-0253 or 510-642-0455, fax: 510-642-2845 > [EMAIL PROTECTED], http://ptolemy.eecs.berkeley.edu/~eal > > > ---------------------------------------------------------------------------- > Posted to the ptolemy-hackers mailing list. Please send administrative > mail for this list to: [EMAIL PROTECTED] > ---------------------------------------------------------------------------- Posted to the ptolemy-hackers mailing list. Please send administrative mail for this list to: [EMAIL PROTECTED]
