[kepler-dev] Ports

[Ivens]

When i tried to link an UNKNOWN port to a GENERAL port, i got error
messages...
why?


[image: help.JPG]


[image: error.JPG]

On Fri, Jul 30, 2010 at 10:00 AM, Ivens <ivensportugal at gmail.com> wrote:

> Hi ilkay,
>
> yes i can add the actor do Display, and it works well.
> But Display Actor has a port from General Type and accepts every type of
> Token.
>
> The problem is... my actor must send the Token he received... but i dont
> know the type of that Token.
>
> For instance:
> suppose i have (SDF Director) a String Constant --- myActor --- String to
> Int --- Display
>
> my actor must get a String from String Constant (which is easy using an
> input Port from GENERAL type) and send this String Token through a STRING
> type Port, because String to Int must receive a StringToken.
>
> But..
> Suppose (SDF Director)   Const --- myActor --- AddOrSubtract --- Display
>
> my actor must get a Integer and send it through a INTEGER type Port,
> because AddOrSubtract expects that.
>
> In other words, the output Port may be generic...
> but if i declare it as GENERAL, it won't work
>
> and i cannot use output.setTypeAtLeast(input), because my input port is
> GENERAL.
>
> did you understand?
>
> On Wed, Jul 28, 2010 at 4:42 PM, Ilkay Altintas <altintas at sdsc.edu> wrote:
>
>> Hi,
>>
>> The general data type is the most inclusive of the types.  Can you link
>> your actor to display?
>>
>> There's some more information on the type system conversions in the
>> ptolemy documentation  (section 4.5.4: Conversions) at:
>> http://www.eecs.berkeley.edu/Pubs/TechRpts/2008/EECS-2008-28.html
>>
>> -ilkay
>>
>>
>> --
>> Ilkay ALTINTAS
>> Deputy Coordinator for Research, San Diego Supercomputer Center (SDSC)
>> Lab Director, Scientific Workflow Automation Technologies (SWAT @ SDSC)
>>
>> University of California, San Diego
>> 9500 Gilman Drive, MC: 0505  La Jolla, CA  92093-0505
>> Phone: (858) 210-5877                     Fax: (858) 534-8303
>> Web: http://users.sdsc.edu/~altintas
>> Skype: ilkay.altintas
>>
>>
>>
>>
>>
>>
>>
>>
>> On Jul 28, 2010, at 10:32 AM, Ivens wrote:
>>
>>  Hi,
>>>
>>> I wrote an Actor in Java that has 2 ports: one is input and the other one
>>> is output.
>>> Both are from GENERAL type. (deal with GENERAL tokens)
>>>
>>> The output port sends the same data the input port receives.
>>> And then, i connect the output port to any other Kepler Actor (for
>>> instance, String to Int.string)
>>>
>>> When i click 'play' to start the execution, i get an error message.
>>> i think that is because my output port is from GENERAL type... and it is
>>> connected to a port from STRING type
>>>
>>> So, i changed that type to UNKNOWN... but the error persists...
>>> Can you help me?
>>>
>>> Thanks
>>> _______________________________________________
>>> Kepler-dev mailing list
>>> Kepler-dev at kepler-project.org
>>> http://mercury.nceas.ucsb.edu/kepler/mailman/listinfo/kepler-dev
>>>
>>
>>
>
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