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leo.yue
PostPosted: Fri May 25, 2007 1:27 am    Post subject: Exception handling with message flow Reply with quote

Acolyte

Joined: 20 Oct 2004
Posts: 52
The scenario is 1. MQInput Node --> 2. Check Node ---> 3. MQOutput Node

1. The catch terminal of MQInput is connected to a subflow A (exception handling), and the failure terminal of MQInput is connected to a trace node.

2. The failure terminal of Check node is connected to a subflow B (specific handling)

My question is:
If there is a message arriving, check node generates an exception and propagates the message to failure terminal. Subflow B would handle the exception, but it generated exception also. Could the message roll back to the catch terminal or failure terminal of MQInput Node then?
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vk
PostPosted: Fri May 25, 2007 9:48 am    Post subject: Reply with quote

Partisan

Joined: 20 Sep 2005
Posts: 302
Location: Houston
Catch terminal.

The message would go to the Failure terminal of the MQInput node only for errors happening in the MQInput node. If the message is propagated out of the MQInput node and an exception happends downstream, then the control will go to the catch terminal of the MQInput node.

Regards.
VK.
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