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The UNTIL … DISPLAY statement, which is a looping construct with a display, displays a screen repetitively until an exception is encountered.Usage of UNTIL … DISPLAY
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5. The actions, which comprise the body of the loop, follow the colon. Each action starts on a separate line.Action sequence numbers are not permitted within an UNTIL loop; since an UNTIL loop constitutes a single statement, all the actions within it are executed whenever the UNTIL is executed.Execution of an UNTIL … DISPLAY statement terminates when an exception on the list is detected (and not handled by rules inside the UNTIL loop) during the execution of the statements comprising the loop. Control passes to the actions that follow the END statement of the loop.In this example, the QUERY_SCREEN screen appears up to the point the DONE exception is signaled during the display.TIBCO Object Service Broker Defining Screens and Menus about defining and displaying TIBCO Object Service Broker screens.
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Copyright © TIBCO Software Inc. All Rights Reserved |