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

assignee

Description
This attribute specifies a performer of a Human Task.
Type
——-
java.lang.String or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
The name of a performer as java.lang.String or an expression which evaluates to a java.lang.String e.g., ${perfomer}
Default Value
——-
–
CMMN 1.1 Elements
——-
Human Task

candidateGroups

Description
This attribute specifies which group(s) will be candidate for performing the Human Task.
Type
——-
java.lang.String or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
Comma separated list of group ids as java.lang.String or expressions that evaluate to a java.lang.String or a java.util.Collection of java.lang.String, e.g., management or management, ${accountancyGroupId()}
Default Value
——-
–
CMMN 1.1 Elements
——-
Human Task

candidateUsers

Description
This attribute specifies which user(s) will be candidate for performing the Human Task.
Type
——-
java.lang.String or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
Comma separated list of user ids as java.lang.String or expressions that evaluate to a java.lang.String or a java.util.Collection of java.lang.String, e.g., kermit, gonzo or ${ldapService.findAllSales()}
Default Value
——-
–
CMMN 1.1 Elements
——-
Human Task

caseBinding

Description
This attribute specifies which case definition version should be called inside the case task.
Type
——-
java.lang.String
Possible Values
——-
latest, deployment, version
Constraints
——-
If the value is set to version the attribute camunda:caseVersion is required, see Case Binding for more information.
Default Value
——-
–
CMMN 1.1 Elements
——-
Case Task

caseTenantId

Description
The attribute specifies the tenant id of the case definition which is to be resolved by a case task, see Case Tenant Id for more information.
Type
——-
java.lang.String or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
A concrete tenant id or an expression which evaluates to a java.lang.String e.g., ${caseExecution.tenantId}
Default Value
——-
–
CMMN 1.1 Elements
——-
Case Task

caseVersion

Description
This attribute explicitly defines which case definition version should be called inside the case task.
Type
——-
java.lang.Integer or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
All deployed version numbers of the case definition to call or an expression which evaluates to a java.lang.Integer
Default Value
——-
–
CMMN 1.1 Elements
——-
Case Task

class

Description
The attribute specifies which Java class will be executed at runtime. The stated class must implement a Java delegate interface.
Type
——-
java.lang.String
Possible Values
——-
Fully qualified Java class name of a class which implements a Java Delegate interface, e.g., org.camunda.bpm.MyJavaDelegate
Default Value
——-
–
CMMN 1.1 Elements
——-
camunda:variableListener, camunda:caseExecutionListener

decisionBinding

Description
This attribute specifies which decision definition version should be evaluated inside the decision task.
Type
——-
java.lang.String
Possible Values
——-
latest, deployment, version
Constraints
——-
If the value is set to version the attribute camunda:decisionVersion is required.
Default Value
——-
latest
CMMN 1.1 Elements
——-
Decision Task

decisionTenantId

Description
The attribute specifies the tenant id of the decision definition which is to be evaluated by a decision task, see Decision Tenant Id for more information.
Type
——-
java.lang.String or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
A concrete tenant id or an expression which evaluates to a java.lang.String e.g., ${caseExecution.tenantId}
Default Value
——-
–
CMMN 1.1 Elements
——-
Decision Task

decisionVersion

Description
This attribute explicitly defines which decision definition version should be called inside the decision task.
Type
——-
java.lang.Integer or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
All deployed version numbers of the decision definition to call or an expression which evaluates to a java.lang.Integer
Default Value
——-
–
CMMN 1.1 Elements
——-
Decision Task

delegateExpression

Description
The attribute allows specification of an expression which must resolve to an object that implements the corresponding interface (see delegation code).
Type
——-
org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
Expression which evaluates to a Java class implementing a delegation interface, e.g., ${myVariableListener}.
Default Value
——-
–
CMMN 1.1 Elements
——-
camunda:variableListener, camunda:caseExecutionListener

dueDate

Description
This attribute specifies the initial due date of a Human Task when it is created.
Type
——-
org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
An expression which evaluates to a java.util.Date, java.util.String (ISO 8601 formatted) or null, e.g., ${dueDate}
Default Value
——-
–
CMMN 1.1 Elements
——-
Human Task

expression

Description
The attribute defines an expression which will be evaluated at runtime.
Type
——-
org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
Expression, e.g., ${gender == 'male' ? 'Mr.' : 'Mrs.'} or #{printer.printMessage()}
Default Value
——-
–
CMMN 1.1 Elements
——-
camunda:variableListener, camunda:caseExecutionListener

formKey

Description
This attribute specifies a form resource. See task forms for more information.
Type
——-
java.lang.String
Possible Values
——-
A java.lang.String of a form resource which can be evaluated by the Tasklist
Default Value
——-
–
CMMN 1.1 Elements
——-
Human Task

historyTimeToLive

Description
The attribute specifies the history time to live (in days) for the case definition. It is used within History cleanup.
Type
——-
java.lang.Integer or java.lang.String
Possible Values
——-
Any non-negative integer number or string containing a time in days defined by the ISO-8601 date format.
Default Value
——-
null - means that case definition history won't ever be removed during history cleanup run
CMMN 1.1 Elements
——-
Case

mapDecisionResult

Description
The attribute references which built-in Decision Result Mapper is used to pass the result of an evaluated decision to a case variable. It should be used in combination with camunda:resultVariable.
Type
——-
java.lang.String
Possible Values
——-
singleEntry, singleResult, collectEntries, resultList
Default Value
——-
resultList
CMMN 1.1 Elements
——-
Decision Task

priority

Description
This attribute specifies the initial priority of a Human Task when it is created.
Type
——-
org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
An expression which evaluates to a java.lang.Number or a java.lang.String which represents a number or null, e.g., ${priority}
Default Value
——-
–
CMMN 1.1 Elements
——-
Human Task

processBinding

Description
This attribute specifies which process definition version should be called inside the process task.
Type
——-
java.lang.String
Possible Values
——-
latest, deployment, version
Constraints
——-
If the value is set to version the attribute camunda:processVersion is required, see Process Binding for more information.
Default Value
——-
–
CMMN 1.1 Elements
——-
Process Task

processTenantId

Description
The attribute specifies the tenant id of the process definition which is to be resolved by a process task, see Process Tenant Id for more information.
Type
——-
java.lang.String or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
A concrete tenant id or an expression which evaluates to a java.lang.String e.g., ${caseExecution.tenantId}
Default Value
——-
–
CMMN 1.1 Elements
——-
Process Task

processVersion

Description
This attribute explicitly defines which process definition version should be called inside the process task.
Type
——-
java.lang.Integer or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
All deployed version numbers of the process definition to call or an expression which evaluates to a java.lang.Integer
Default Value
——-
–
CMMN 1.1 Elements
——-
Process Task

repeatOnStandardEvent

Description
The attribute specifies a transition in which the repetition rule of a stage or task is evaluated. Note that this attribute is omitted when the stage or task to repeat has at least one entry criterion.
Type
——-
java.lang.String
Possible Values
——-
create, enable, disable, reenable, manualStart, start, complete, exit
Default Value
——-
complete
CMMN 1.1 Elements
——-
Repetition Rule

resource

Description
The attribute specifies an external resource. The resource can be part of the deployment or exists in the classpath. To specify the type of resource, a URL scheme like prefix deployment:// resp. classpath:// can be supplied. If the scheme is omitted, it is assumed that the resource exists in the classpath.
Type
——-
java.lang.String or org.camunda.bpm.engine.delegate.Expression
Possible Values
——-
The path to a resource or an expression which returns the path. Optional the path can start with an URL like scheme classpath:// or deployment:// to specify where to find the resource. If omitted the resource is assumed to exists in the classpath.
Default Value
——-
–
CMMN 1.1 Elements
——-
camunda:variableListener, camunda:caseExecutionListener

resultVariable

Description
The attribute specifies the case variable in which the returned decision result is saved. It can be used in combination with camunda:mapDecisionResult to define a decision result mapping.
Type
——-
java.lang.String
Possible Values
——-
The name of a case variable to save the return value
Default Value
——-
–
CMMN 1.1 Elements
——-
Decision Task

variableName

Description
The variable name that is attached to element camunda:variableOnPart for which the sentry listens. Sentry is evaluated when the variable event transition occurs.
Type
——-
java.lang.String
Camunda extension element
——-
camunda:variableOnPart

原文: https://docs.camunda.org/manual/7.9/reference/cmmn11/custom-extensions/camunda-attributes/