On 4/20/07, Rajendran, John Tom (STSD) <[EMAIL PROTECTED]> wrote:
Hi there, I have an orthogonal state chart implemented with SCXML, I have a SLOT and TASK defined in the parallel states. MSlotInitState to MSlotHeldState, MSlotQueuedState, MSlotLockedState is happening and in the MSlotLockedState I am trying to - <state id="MSlotLockedState"> - <onentry> <log expr="'Slot Locked State'" /> </onentry> <transition event="SlotReadyToBeHeldEvent" target="MSlotHeldState.aquireSlot" /> <transition event="TimerExpiredEvent" cond="_eventdata.timeAbs eq false" target="MSlotQueuedState.queueSlot" /> <transition event="TimerExpiredEvent" cond="_eventdata.timeAbs eq true" target="MSlotCancelledState.cancelSlot" /> <transition event="CancelEvent" target="MSlotCancelledState.freeSlot" /> </state> Move to MSlotHeldState.acquireSlot which is a method call within MSlotHeldState. Here the transition is not happening. Eventhough the event is triggered from server side. I am able to go from Init to the next transitions like MSlotHeldState, MSlotLockedState, MSlotqueuedState. Next level of transitions are not happening at all. Is there anything I am missing in the SCXML please help me.
<snip/>
The state machine looks OK to me (other than the expressions for the guard conditions which I cannot verify since the event payload is application specific). I'd recommend re-checking the expressions and the pertinent payload (_eventdata) classes. For that, you should really be familiar with the JEXL syntax [1] as well. As of now, there isn't enough information in this email to help you with the expressions. If you provide more details (via the smallest complete test case), I'll gladly take another look. -Rahul [1] http://jakarta.apache.org/commons/jexl/reference/syntax.html
Thanks John
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