Re-Execute a Node's Action handler after an Exception

[dleerob]

Hi,

If you have a Node, which assigns a Java handler called 'MyAction':

<node name="Store Document">
 <action name="Store Document Action" class="MyAction"></action>
 <transition to="Complete"></transition>
 </node>

If the handler 'MyAction' throws an exception (perhaps a database it needed to query was down), execution of the flow will stop at that node. How do we re-execute that node using the API's once we have fixed the problem (brought the database up).

I tried just signalling the token (ie. token.signal()), but that doesn't re-execute 'MyAction', it just moves the token along to the next node.

Thanks.

[kukeltje]

in what node is the token after the error? the 'store document' node or a previous one?

Can you create a unit test with embedded actionhandler (innerclass) and an example processdefinition also embedded as a string?

[dleerob]

Thanks for the response.

It would still be in the 'Store Document' node.

Not to worry, I managed to find a solution:

I simply get the Token, and execute the following code:

Node node = token.getNode();
ExecutionContext executionContext = new ExecutionContext(token);
node.execute(executionContext);

The action is then executed again.
Any feedback is welcome. Hopefully this is the correct way of doing it.

Thanks.