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procedure BeginActivity

    (itemtype in varchar2,
     itemkey in varchar2,
     activity in varchar2);

Description

Determines if the specified activity can currently be performed on the process item and raises an exception if it cannot.

The CompleteActivity() procedure automatically performs this function as part of its validation. However, you can use BeginActivity to verify that the activity you intend to perform is currently allowed before actually calling it. See: CompleteActivity.

Arguments (input)	itemtypeA valid item type.
itemkey	A string generated from the application object's primary key. The string uniquely identifies the item within an item type. The item type and key together identify the process.
activity	The process activity to perform. Provide the process activity's label name. If the process activity label name does not uniquely identify the activity you can preceed the label name with the internal name of its parent process. For example, <parent_process_internal_name>:<label_name>.

Example

/*Verify that a credit check can be performed on an order. If it is allowed, perform the credit check, then notify the Workflow Engine when the credit check completes.*/

begin
	wf_engine.BeginActivity('ORDER', to_char(order_id),'CREDIT_CHECK')
	OK = TRUE
exception
	when others then
		WF_CORE.Clear
		OK = FALSE
end;
if OK then
	-- perform activity --
   wf_engine.CompleteActivity('ORDER', to_char(order_id),
	'CREDIT_CHECK' :result_code);
endif;