Consider the following code excerpt:

...

<scope name="TravelAgencyBooking">
...

<faultHandlers>

<catch faultName="h:UnavailableHotelException">

<!-- Do something -->

</catch>
<catch faultName="f:UnavailableFlightException">

<!-- Do something -->

</catch>  

</faultHandlers>

...

<sequence>

<!-- Make a concurrent invocation to Hotel and Flight -->

<flow>

<sequence>   

<!-- Async invoke of the Hotel web service and wait for the callback -->

<invoke partnerLink="HotelWS"
portType="h:HotelAvailabilityPT"
operation="CheckHotelAvailability"
inputVariable="HotelDetails" />  
<receive partnerLink="HotelWS"
portType="h:HotelCallbackPT"
operation="HotelAvailabilityCallback"
variable="HotelResponse" />   

</sequence>

<sequence>

<!-- Async invoke of the Flight web service and wait for the callback -->
<invoke partnerLink="FlightWS"
portType="f:FlightAvailabilityPT"
operation="CheckFlightAvailability"
inputVariable="FlightDetails" />                 

<receive partnerLink="FlightWS"
portType="f:FlightCallbackPT"
operation="FlightAvailabilityCallback"
variable="FlightResponse" />   

</sequence>

</flow>

<!-- Do something -->

</sequence>
</scope>
...

Consider that the operations CheckHotelAvailability and CheckFlightAvailability throw, respectively, an UnavailableHotelException and UnavailableFlightException.

As we can see, the two operations are invoked concurrently. Because of that, we can have a situation where both exceptions are thrown at the same time. In that case, what would happen? Would both fault handlers be executed, or just one would be chosen?

Moreover, is it possible to call a specific fault handler within another one?



Thanks in advance,

Douglas Leite