[attributename := ] ORDERED( actionlist )
| attributename | Optional. The action name, which turns the action into an attribute definition, therefore not executed until the attributename is used as an action. |
| actionlist | A comma-delimited list of the actions to execute in order. These may be ECL actions or external actions. |
The ORDERED action executes the items in the actionlist in the order in which they appear in the actionlist. This is useful when a subsequent action requires the output of a precedent action.
It has the ordering requirements of SEQUENTIAL. This is most useful for ordering actions which do not have anything in common, for example, generating files and then sending email. If there is any chance of a shared value which may change meaning, you should use SEQUENTIAL.
ORDERED has no effect on PERSISTed attributes.
Example:
Action1 := OUTPUT(A_People,OutputFormat1,'//hold01/fred.out');
Action2 := OUTPUT(Person,{Person.per_first_name,Person.per_last_name})
Action2 := OUTPUT(Person,{Person.per_last_name})));
//by naming these actions, they become inactive attributes
//that only execute when the attribute names are called as actions
ORDERED(Action1,PARALLEL(Action2,Action3));
//executes Action1 alone, and then executes Action2 and Action3 together
See Also: PARALLEL, PERSIST, SEQUENTIAL