Repeat Until
BPMN Implementation: Repeat Pattern
The Repeat Until activity executes an activity repeatedly until its condition evaluates to true. In contrast to the While activity, the Repeat Until loop executes the contained activity at least once.
See also Ungrouping Selected Structured Activities.
Required Properties | Optional Properties |
|---|
Condition | Name. See Selecting Activity Labels |
Join Condition. See Creating a Join Condition for an Incoming Link |
Suppress Join Failure. See Process Properties |
Comment. See Adding Comments to a Process |
Documentation. See Adding Documentation to a Process |
See Setting Visual Properties and Using Your Own Library of Images. |
Execution State. See Viewing the Execution State of an Activity or Link |
Extension Attributes and Extension Elements. See Declaring Extension Elements and Attributes. |
To build a Repeat Until:
- 1. From the Control Flow palette, drag a Repeat Pattern activity to the Process Editor canvas.
- 2. Double-click the Repeat Until to open the Condition Builder and build a Boolean expression. For details, see Using the Expression Builder.
- 3. Drag an activity, such as a Scope or Invoke, inside the Repeat Until.
- 4. Specify all the properties for each activity in the Repeat Until.
XML Syntax
<repeatUntil standard-attributes>
standard-elements
activity
<condition expressionLanguage="anyURI"?>
bool-expr
</condition>
</repeatUntil>
Example: