internal transition in compound state implementation - SCXML spec
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Key: SCXML-162
URL: https://issues.apache.org/jira/browse/SCXML-162
Project: Commons SCXML
Issue Type: Improvement
Affects Versions: 0.9
Reporter: vance huang
Priority: Minor
Fix For: 0.10
According to the SCXML spec, the following was stated:
"The behavior of transitions with 'type' of "internal" is identical, except in
the case of a transition whose source state is a compound state and whose
target(s) is a descendant of the source. In such a case, an internal transition
will not exit and re-enter its source state, while an external one will, as
shown in the example below."
<state id="s1" initial="s11">
<onentry>
<log expr="entering S1"/>
</onentry>
<onexit>
<log expr="'leaving s1'"/>
</onexit>
<state id="s11">
<onentry>
<log expr="entering s11"/>
</onentry>
<onexit>
<log expr="'leaving s11'"/>
</onexit>
</state>
<state id="s12">
<onentry>
<log expr="entering s12"/>
</onentry>
<onexit>
<log expr="'leaving s12'"/>
</onexit>
</state>
<transition event="e" target="s12" type="internal">
<log expr="'executing transition'"/>
</transition>
</state>
Assuming we are in s11 when event e fired. The SM should not go out of s1 and
enters s12.
This feature needs to be implemented.
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