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From "Ate Douma (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (SCXML-224) Improve SCXML state configuration handling and optional validation
Date Fri, 02 Jan 2015 19:37:34 GMT

     [ https://issues.apache.org/jira/browse/SCXML-224?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ate Douma resolved SCXML-224.
-----------------------------
    Resolution: Fixed

> Improve SCXML state configuration handling and optional validation 
> -------------------------------------------------------------------
>
>                 Key: SCXML-224
>                 URL: https://issues.apache.org/jira/browse/SCXML-224
>             Project: Commons SCXML
>          Issue Type: Improvement
>    Affects Versions: 2.0
>            Reporter: Ate Douma
>            Assignee: Ate Douma
>             Fix For: 2.0
>
>
> The (new) SCXML state configuration handling isn't properly handling intermediate (in-progess)
transitions yet as it currently only updates/refreshes the state configuration (through the
Status object) after processing a step.
> This causes errors like reported on SCXML-208 but also [SCXML IRP|http://www.w3.org/Voice/2013/scxml-irp/]
test failures (tests 409, 411 and 417). 
> As the Status object is directly mutable *and* dynamically derives the active states,
this needs a new/immutable implementation without (need for) caching the active states.
> To keep supporting setting the current state configuration a new API will be added to
the SCXMLExecutor to (only) set the state configuration through atomic stateIds, which also
first will check the resulting configuration is a valid/legal configuration.
> Finally, as checking the legal configuration in itself can be relatively time-consuming
and this not always might be needed (if the state machine is properly defined and controlled),
checking the configuration will be made optional (default enabled). 
> These changes will have some API changes as result but should be trivial to be resolved
at compile time.



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