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Posted to user@commons.apache.org by "Dark.Rider85" <da...@yahoo.de> on 2011/10/26 15:59:57 UTC
[SCXML] element
Hi!
I dealt with the <invoke> element of scxml a little. That element is
used to call external services. I was thinking about calling an external
service of the type "scxml" but I have no idea how to do that properly.
I consulted the working draft but it did not really help me. I have
problems in understanding the way to use it. Do I have to provide an
implementation which extends "Invoke"? Is there any simple example which
illustrates the proper use of the invoke element? Or should I use
another way to call that external service of the type scxml?
Thanks in advance!
Best regards
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Re: [SCXML] element
Posted by Rahul Akolkar <ra...@gmail.com>.
On Wed, Oct 26, 2011 at 9:59 AM, Dark.Rider85 <da...@yahoo.de> wrote:
> Hi!
> I dealt with the <invoke> element of scxml a little. That element is used to
> call external services. I was thinking about calling an external service of
> the type "scxml" but I have no idea how to do that properly.
<snip/>
Type "scxml" is reserved and has specific semantics of invoking
another state machine. If your external service isn't one, you should
use a different type that you define and register an Invoker
implementation for that type with the executor.
> I consulted the
> working draft but it did not really help me. I have problems in
> understanding the way to use it. Do I have to provide an implementation
> which extends "Invoke"? Is there any simple example which illustrates the
> proper use of the invoke element? Or should I use another way to call that
> external service of the type scxml?
>
<snap/>
The interface is called org.apache.commons.scxml.invoke.Invoker, you
can read more here [1] and click on the "Frames" click top right to
browse the rest of that Java package.
-Rahul
[1] http://commons.apache.org/scxml/0.9/apidocs/org/apache/commons/scxml/invoke/Invoker.html
> Thanks in advance!
>
> Best regards
>
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