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Exit Handlers
Use an exit handler to validate a business object before it’s returned from a subprocess (child process) to a calling process (parent process). An exit handler appears at the end of a process contract or as a subelement of the View action and is used with actions of the View and Process action types.
Example:
<Process name="Visit::DetailsProcess" defaultAction="showVisitDetails" schemaVersion="0.0.0.5">
<Entry>
<ProcessContext>
<Declarations>
<Declaration name="RetailStoreDetail" type="BoRetailStore" />
<Declaration name="Account" type="BoAccount" />
</Declarations>
<Parameters>
<Input name="BoVisit" type="BoVisit" />
</Parameters>
</ProcessContext>
<EntryActions>
<Action actionType="LOAD" name="LoadRetailStore" type="BoRetailStore">
<Parameters>
<Input name="pKey" value="ProcessContext::BoVisit.StoreId" />
</Parameters>
<Return name="ProcessContext::RetailStoreDetail" />
</Action>
<Action actionType="LOAD" name="LoadAccount" type="BoAccount">
<Parameters>
<Input name="pKey" value="ProcessContext::BoVisit.AccountId" />
</Parameters>
<Return name="ProcessContext::Account" />
</Action>
</EntryActions>
</Entry>
<Body>
<Actions>
<Action actionType="View" name="showVisitDetails">
<UIDescription>Visit::DetailsUI</UIDescription>
</Action>
<Action actionType="View" name="ShowDetail">
<UIDescription>Visit::DetailsUI</UIDescription>
<Events>
<Event name="editVisit" action="showRetailOverview" />
</Events>
</Action>
<Action actionType="View" name="showRetailOverview">
<UIDescription>Visit::RetailStoreCockpitUI</UIDescription>
</Action>
</Actions>
</Body>
<ExitHandlers>
<ExitHandler handlerName="beforeExit1" type="Validate" name="ProcessContext::BoVisit">
<OnValidationError transitionTo="showVisitDetails" />
</ExitHandler>
</ExitHandlers>
</Process>
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