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From "Rahul Akolkar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (SCXML-105) Current status updated after onentry is called
Date Sun, 11 Jan 2009 07:15:59 GMT

    [ https://issues.apache.org/jira/browse/SCXML-105?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12662735#action_12662735
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Rahul Akolkar commented on SCXML-105:
-------------------------------------

This behavior is actually by design, though somewhat subtle. Since any transitions on the
state machine are supposed to be atomic operations, the status is not updated until all the
necessary steps to complete the transition are done without any fatal errors. This includes
the executable content onexit of source state, in transition and onentry of target state.
However, finding out the parent transition target (state) for actions within an onentry block
is fairly straightforward -- in Action#execute(), the Action#getParentTransitionTarget() method
will give the parent transition target if needed.


> Current status updated after onentry is called
> ----------------------------------------------
>
>                 Key: SCXML-105
>                 URL: https://issues.apache.org/jira/browse/SCXML-105
>             Project: Commons SCXML
>          Issue Type: Bug
>    Affects Versions: 0.9
>            Reporter: Mike Tillberg
>            Priority: Minor
>             Fix For: 0.10
>
>         Attachments: custom-state-01.xml, CustomActionTest.patch, GetStateAction.java
>
>
> When retrieving the current state using a custom action in the onentry section of a state,
the state is incorrect.  The state retrieved is the previous state.  The problem appears to
be in SCXMLExecutor.triggerEvents, where updateStatus() is called after semantics.executeActions().
 Adding an additional updateStatus() before executeActions() seems to fix the problem, and
all tests still pass.
> Attached is a test case showing the problem.

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