The following elements are extension elements for the camunda namespace http://camunda.org/schema/1.0/cmmn.

caseExecutionListener

Description	Add an execution listener to an event in the lifecycle of a case item.
Attributes	event	The type of the lifecycle event for which the listener is called
	class	see camunda:class
	expression	see camunda:expression
	delegateExpression	see camunda:delegateExpression
Constraints	The event attribute is required and must be one of the lifecycle events that are valid for the plan item it is defined on. For regular tasks, these are: create, enable, disable, reenable, start, manualStart, complete, reactivate, terminate, exitparentTerminate, suspend, resume, parentSuspend, parentSuspend, close, occur
	One of the attributes class, expression or delegateExpression is mandatory
Parent elements	Case, Human Task, Process Task, Case Task, Stage, Milestone,
Child elements	camunda:field, camunda:script

expression

Description	Defines an expression to inject in delegated classes (see Field Injection).
Attributes	–
Text Content	The expression to inject
Constraints	–
Parent elements	camunda:field
Child elements	–

field

Description	Defines the value to inject in delegated classes (see Field Injection).
Attributes	name	The name of the field
	expression	The value of the field as expression
	stringValue	The value of the field as String
Constraints	Only one attribute of stringValue and expression or one of the child elements string and expression can be used
Parent elements	camunda:variableListener, camunda:caseExecutionListener
Child elements	camunda:expression, camunda:string

in

Description	This element specifies variables which should be passed to the sub instance (process instance or case instance), see passing variables to called process or passing variables to called case for more information.
Attributes	source	A name of a variable to be passed in
	sourceExpression	An expression to be evaluated and passed in
	variables	Can be set to all to pass all variables in
	target	Name of the variable inside the sub instance
	local	Can be set to true to only pass local variables of the case execution that executes this case/process task instance.
	businessKey	Set the business key of the sub instance
Constraints	Only one of the attributes source, sourceExpression, variables or businessKey can be used
	The attribute target is required if the source or sourceExpression attribute is used
Parent elements	Process Task, Case Task
Child elements	–

out

Description	This element specifies variables which should be passed back from the sub instance (process instance or case instance), see passing variables to called process or passing variables to called case for more information.
Attributes	source	A name of a variable to be passed back
	sourceExpression	An expression to be evaluated and passed back
	variables	Can be set to all to pass all sub instance variables back
	target	Name of the variable inside the calling case instance
Constraints	Only one of the attributes source, sourceExpression or variables can be used
	The attribute target is required if the source or sourceExpression attribute is used
Parent elements	Process Task, Case Task
Child elements	–

script

Description	A script element. The script is executed and the return value is used as mapping value.
Attributes	scriptFormat	The format identifier, normally the language of the script source code
	resource	equivalent to camunda:resource
Constraints	The scriptFormat attribute is required
	If the resource attribute is used, no source code text content is allowed
Parent elements	camunda:variableListener, camunda:caseExecutionListener
Child elements	–

string

Description	Defines a String value to inject in delegated classes (see Field Injection).
Attributes	–
Text Content	The String value to inject
Constraints	–
Parent elements	camunda:field
Child elements	–

taskListener

Description	Add a task listener to a task event.
Attributes	event	The type of the event for which the listener is called
	class	see camunda:class
	expression	see camunda:expression
	delegateExpression	see camunda:delegateExpression
Constraints	The event attribute is required and must be one of the task events: create, assignment, complete or delete
	One of the attributes class, expression or delegateExpression is mandatory
Parent elements	Human Task
Child elements	camunda:field, camunda:script

variableListener

Description	Adds custom code to listen to variable events such as the creation, update or deletion of a variable. A listener defined on a model scope (like the case plan model, a human task, etc.) is notified for all variable events that occur in this scope or any of its subordinate scopes.
Attributes	event	The type of the event for which the listener is called
	class	see camunda:class
	expression	see camunda:expression
	delegateExpression	see camunda:delegateExpression
Constraints	Valid values for the event attribute are create, update and delete. This attribute is optional and if left out, the listener is notified for all kinds of events.
	Either one of the attributes class, expression or delegateExpression, or a camunda:script child element is mandatory.
Parent elements	Case Plan Model, Stage, Human Task, Process Task, Case Task
Child elements	camunda:field, camunda:script

variableOnPart

Description	Add variableOnPart to sentry. see variableOnPart.
Attributes	variableName	see camunda:variableName
Constraints	variableEvent element and variableName attribute are mandatory fields when the variableOnPart is defined in a sentry.
Parent element	Sentries
Child element	camunda:variableEvent

variableEvent

Description	Add variableEvent to a VariableOnPart. A sentry is evaluated when the variableEvent transition occurs.
Value	Valid values are create,update or delete
Parent element	VariableOnPart