[
https://issues.apache.org/jira/browse/SCXML-52?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12521370
]
Ingmar Kliche commented on SCXML-52:
------------------------------------
Here is a use case which still not works:
<?xml version="1.0"?>
<scxml version="1.0" xmlns="http://www.w3.org/2005/07/scxml";
initialstate="main" id="test">
<datemodel>
<data id="foo" expr="'1'"/>
<data id="bar" expr="'1'"/>
</datemodel>
<state id = "main">
<parallel id ="parallel">
<state id="s1">
<initial>
<transition target="s11"/>
</initial>
<state id="s11">
<transition event="event1">
<send event="interal_event1"/>
<send event="interal_event2"/>
</transition>
<transition event="event2" cond="foo == 2 and bar == 2" target="s12"/>
</state>
<state id="s12"/>
</state>
<state id="s2">
<transition event="interal_event1">
<assign name="foo" expr="'2'"/>
</transition>
<transition event="interal_event2">
<assign name="bar" expr="'2'"/>
</transition>
</state>
</parallel>
</state>
</scxml>
On event1 the state machine generates two internal events. While executing
the two internal events, the second transition on "internal_event2" gets
removed - which is not correct.
> Error on resolving conflicting transitions for compound states
> --------------------------------------------------------------
>
> Key: SCXML-52
> URL: https://issues.apache.org/jira/browse/SCXML-52
> Project: Commons SCXML
> Issue Type: Bug
> Affects Versions: 0.6
> Reporter: Ingmar Kliche
> Fix For: 0.7
>
>
> There seems to be a problem on the resolution of conflicting transitions for
> compound states. See the following scxml document:
> <scxml xmlns="http://www.w3.org/2005/07/scxml"; version="1.0"
> initialstate="s1">
> <datamodel>
> <data name="x"/>
> </datamodel>
>
> <state id="s1">
> <initial>
> <transition target="s11"/>
> </initial>
>
> <transition event="event_1">
> <assign name="x" expr="'s1'"/>
> </transition>
>
> <transition event="event_2" target="s1">
> <assign name="x" expr="'s1'"/>
> </transition>
>
> <state id="s11">
> <transition event="event_1">
> <assign name="x" expr="'s11'"/>
> </transition>
> <transition event="event_2" target="s11">
> <assign name="x" expr="'s11'"/>
> </transition>
> </state>
> </state>
>
> <state id="s2" final="true" />
> </scxml>
> The state machine enters a compound state s1 which contains another state s11
> as its intitial state. Both states have transitions on event_1 and event_2.
> Note that event_1 has no target, whereas event_2 has a target towards the
> same state.
> For event_2 everything works as expected, i.e. only the transition on state
> s11 is executed and therefor s11 is reentered (I have a listener in my
> environment and can monitor this).
> The error occurs at event_1. On event_1 both transitions of s1 _and_ s11 are
> executed - but only once. After this, the state machine gets stuck (in
> particular the currentStates-List is empty). Any subsequent event will not
> cause any further action.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
