Service task

A task that uses a service, such as a web service or an automated application.

Attributes: General

Attribute	Description
Model ID	The unique identifier of the element within the process model.
Name	The name of the element displayed in the diagram.
Documentation	A description and any additional information about this element.

Attributes: Details

Attribute	Description
Expression	Expression to be executed when the task is started. It allows you to interact with the backend by calling services, making calculations, and so on.
Delegate expression	Must resolve to a Java object, which itself must have a class that implements either JavaDelegate or ActivityBehavior.
Class	Fully qualified class name to be invoked when executing the task. The class must implement either JavaDelegate or ActivityBehavior.
Result variable	The name of the variable under which to store the result of the expression evaluation.
Store as local variable	Indicates whether to store the result variable as a local variable.
Class fields	Allows you to inject field values into your delegated class.

Attributes: Execution

Attribute	Description
Asynchronous	When enabled, the activity will be started as an asynchronous job.
Execution listeners	Allows you to invoke Java logic after certain events.
Skip expression	Defines an expression which is evaluated before executing the task. If it evaluates to true, the task is skipped.

Attributes: Multi Instance

Attribute	Description
Multi instance type	Determines if multiple instances of this activity are created. There are three choices: None - default, only one instance is created. MI parallel - activities are created in parallel. This is good practice for User Tasks. MI sequential - activities are created sequentially. This is good practice for Service Tasks.
Collection	The number of instances is determined by the elements of a collection. For each element in the collection, a new instance is created.
Element variable	The variable under which each element is available to the newly created instance.
Element index variable	The variable under which the current number of iterations is stored.
Cardinality	An expression or numeric value which determines how many instances are created.
Completion condition	An expression which, if evaluated to true, stops the creation of new instances.

Attributes: Visual

Attribute	Description
Font color	The font color of the element in the diagram.
Font size	The font size of the element in the diagram.
Font style	The font style of the element in the diagram.
Font weight	The font weight of the element in the diagram.
Background color	The background color of the element in the diagram.
Border color	The border color of the element in the diagram.