org.activiti.engine.delegate

Class DelegateHelper

java.lang.Object

org.activiti.engine.delegate.DelegateHelper

public class DelegateHelper
extends Object

Class that provides helper operations for use in the JavaDelegate, ActivityBehavior, ExecutionListener and TaskListener interfaces.

Author:

Joram Barrez

Constructor Summary

Constructors

Constructor and Description
DelegateHelper()

Method Summary

Modifier and Type	Method and Description
static Expression	createExpressionForField(org.activiti.bpmn.model.FieldExtension fieldExtension) Creates an Expression for the FieldExtension.
static org.activiti.bpmn.model.BpmnModel	getBpmnModel(DelegateExecution execution) Returns the BpmnModel matching the process definition bpmn model for the process definition of the passed DelegateExecution.
static Map<String,List<org.activiti.bpmn.model.ExtensionElement>>	getExtensionElements(DelegateExecution execution) Returns for the activityId of the passed DelegateExecution the Map of ExtensionElement instances.
static org.activiti.bpmn.model.FieldExtension	getField(DelegateExecution execution, String fieldName) Returns the FieldExtension matching the provided 'fieldName' which is defined for the current activity of the provided DelegateExecution.
static Expression	getFieldExpression(DelegateExecution execution, String fieldName) Returns the Expression for the field defined for the current activity of the provided DelegateExecution.
static List<org.activiti.bpmn.model.FieldExtension>	getFields(DelegateExecution execution) Returns the list of field extensions, represented as instances of FieldExtension, for the current activity of the passed DelegateExecution.
static org.activiti.bpmn.model.FlowElement	getFlowElement(DelegateExecution execution) Returns the current FlowElement where the DelegateExecution is currently at.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DelegateHelper

public DelegateHelper()

Method Detail

getBpmnModel

public static org.activiti.bpmn.model.BpmnModel getBpmnModel(DelegateExecution execution)

Returns the BpmnModel matching the process definition bpmn model for the process definition of the passed DelegateExecution.

getFlowElement

public static org.activiti.bpmn.model.FlowElement getFlowElement(DelegateExecution execution)

Returns the current FlowElement where the DelegateExecution is currently at.

getExtensionElements

public static Map<String,List<org.activiti.bpmn.model.ExtensionElement>> getExtensionElements(DelegateExecution execution)

Returns for the activityId of the passed DelegateExecution the Map of ExtensionElement instances. These represent the extension elements defined in the BPMN 2.0 XML as part of that particular activity.

getFields

public static List<org.activiti.bpmn.model.FieldExtension> getFields(DelegateExecution execution)

Returns the list of field extensions, represented as instances of FieldExtension, for the current activity of the passed DelegateExecution.

getField

public static org.activiti.bpmn.model.FieldExtension getField(DelegateExecution execution,
                                                              String fieldName)

Returns the FieldExtension matching the provided 'fieldName' which is defined for the current activity of the provided DelegateExecution. Returns null if no such FieldExtension can be found.

createExpressionForField

public static Expression createExpressionForField(org.activiti.bpmn.model.FieldExtension fieldExtension)

Creates an Expression for the FieldExtension.

getFieldExpression

public static Expression getFieldExpression(DelegateExecution execution,
                                            String fieldName)

Returns the Expression for the field defined for the current activity of the provided DelegateExecution. Returns null if no such field was found in the process definition xml.