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While

BPMN Implementation: Loop

The While activity executes an activity repeatedly until its condition evaluates to false.

In contrast to the Repeat Until activity, the Qhile loop may not execute the contained activity at all.

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 While:

From the Control Flow
palette, drag a Loop
activity to the Process Editor canvas.

Double-click the Qhile to open the Condition Builder. For details, see Using the Expression Builder.

Drag an activity, such as a Scope or Invoke, inside the While.

Specify all the properties for each activity in the while.

XML Syntax

<while standard-attributes>
  <condition expressionLanguage="anyURI"?>
   bool-expr
  </condition>
    standard-elements
    activity
</while>

Example:

<while>
  <condition>
    $orderDetails > 100
  </condition>
  <scope>
    ...
  </scope>
</while>

Watch

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