ServiceTaskExpressionActivityBehavior (Camunda Platform Javadocs 7.16.18-ee)

java.lang.Object
- org.camunda.bpm.engine.impl.bpmn.behavior.FlowNodeActivityBehavior
- - org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior
  - - org.camunda.bpm.engine.impl.bpmn.behavior.TaskActivityBehavior
    - - org.camunda.bpm.engine.impl.bpmn.behavior.ServiceTaskExpressionActivityBehavior

All Implemented Interfaces:

CoreActivityBehavior<ActivityExecution>, ActivityBehavior, SignallableActivityBehavior
```
public class ServiceTaskExpressionActivityBehavior
extends TaskActivityBehavior
```
ActivityBehavior that evaluates an expression when executed. Optionally, it sets the result of the expression as a variable on the execution.

Author:

Tom Baeyens, Christian Stettler, Frederik Heremans, Slawomir Wojtasiak (Patch for ACT-1159), Falko Menge

Field Summary

Fields
Modifier and Type Field Description

protected Expression expression

protected java.lang.String resultVariable
- Fields inherited from class org.camunda.bpm.engine.impl.bpmn.behavior.TaskActivityBehavior
  activityInstanceId
- Fields inherited from class org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior
  LOG
- Fields inherited from class org.camunda.bpm.engine.impl.bpmn.behavior.FlowNodeActivityBehavior
  bpmnActivityBehavior

Constructor Summary

Constructors
Constructor Description

ServiceTaskExpressionActivityBehavior(Expression expression, java.lang.String resultVariable)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`performExecution(ActivityExecution execution)`	The method which should be overridden by the sub classes to perform an execution.

Methods inherited from class org.camunda.bpm.engine.impl.bpmn.behavior.TaskActivityBehavior
execute, postExecution, preExecution

Methods inherited from class org.camunda.bpm.engine.impl.bpmn.behavior.AbstractBpmnActivityBehavior
createCompensateEventSubscription, doLeave, executeWithErrorPropagation, isCompensationEventSubprocess, signal, signalCompensationDone

Methods inherited from class org.camunda.bpm.engine.impl.bpmn.behavior.FlowNodeActivityBehavior
leave, leaveIgnoreConditions

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - expression
```
protected Expression expression
```
  - resultVariable
```
protected java.lang.String resultVariable
```
- Constructor Detail
  - ServiceTaskExpressionActivityBehavior
```
public ServiceTaskExpressionActivityBehavior(Expression expression,
                                             java.lang.String resultVariable)
```
- Method Detail
  - performExecution
```
public void performExecution(ActivityExecution execution)
                      throws java.lang.Exception
```
    Description copied from class: TaskActivityBehavior
    
    The method which should be overridden by the sub classes to perform an execution.
    
    Overrides:
    
    performExecution in class TaskActivityBehavior
    
    Parameters:
    
    execution - the execution which is used during performing the execution
    
    Throws:
    
    java.lang.Exception