How to use

getExtensionId

method

in

org.flowable.bpmn.model.ServiceTask

@Override
protected void writeAdditionalAttributes(BaseElement element, BpmnModel model, XMLStreamWriter xtw) throws Exception {
  ServiceTask serviceTask = (ServiceTask) element;
  if (ImplementationType.IMPLEMENTATION_TYPE_CLASS.equals(serviceTask.getImplementationType())) {
    writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_CLASS, serviceTask.getImplementation(), xtw);
  } else if (ImplementationType.IMPLEMENTATION_TYPE_EXPRESSION.equals(serviceTask.getImplementationType())) {
    writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_EXPRESSION, serviceTask.getImplementation(), xtw);
  } else if (ImplementationType.IMPLEMENTATION_TYPE_DELEGATEEXPRESSION.equals(serviceTask.getImplementationType())) {
    writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_DELEGATEEXPRESSION, serviceTask.getImplementation(), xtw);
  }
  if (StringUtils.isNotEmpty(serviceTask.getResultVariableName())) {
    writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_RESULTVARIABLE, serviceTask.getResultVariableName(), xtw);
  }
  if (StringUtils.isNotEmpty(serviceTask.getType())) {
    writeQualifiedAttribute(ATTRIBUTE_TYPE, serviceTask.getType(), xtw);
  }
  if (StringUtils.isNotEmpty(serviceTask.getExtensionId())) {
    writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_EXTENSIONID, serviceTask.getExtensionId(), xtw);
  }
  if (StringUtils.isNotEmpty(serviceTask.getSkipExpression())) {
    writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_SKIP_EXPRESSION, serviceTask.getSkipExpression(), xtw);
  }
  if (serviceTask.isTriggerable()) {
    writeQualifiedAttribute(ATTRIBUTE_ACTIVITY_TRIGGERABLE, "true", xtw);
  }
  if (serviceTask.isUseLocalScopeForResultVariable()) {
    writeQualifiedAttribute(ATTRIBUTE_TASK_SERVICE_USE_LOCAL_SCOPE_FOR_RESULT_VARIABLE, "true", xtw);
  }
}

  public void setValues(ServiceTask otherElement) {
    super.setValues(otherElement);
    setImplementation(otherElement.getImplementation());
    setImplementationType(otherElement.getImplementationType());
    setResultVariableName(otherElement.getResultVariableName());
    setType(otherElement.getType());
    setOperationRef(otherElement.getOperationRef());
    setExtensionId(otherElement.getExtensionId());
    setSkipExpression(otherElement.getSkipExpression());

    fieldExtensions = new ArrayList<>();
    if (otherElement.getFieldExtensions() != null && !otherElement.getFieldExtensions().isEmpty()) {
      for (FieldExtension extension : otherElement.getFieldExtensions()) {
        fieldExtensions.add(extension.clone());
      }
    }

    customProperties = new ArrayList<>();
    if (otherElement.getCustomProperties() != null && !otherElement.getCustomProperties().isEmpty()) {
      for (CustomProperty property : otherElement.getCustomProperties()) {
        customProperties.add(property.clone());
      }
    }
  }
}

  public void setValues(ServiceTask otherElement) {
    super.setValues(otherElement);
    setImplementation(otherElement.getImplementation());
    setImplementationType(otherElement.getImplementationType());
    setResultVariableName(otherElement.getResultVariableName());
    setType(otherElement.getType());
    setOperationRef(otherElement.getOperationRef());
    setExtensionId(otherElement.getExtensionId());
    setSkipExpression(otherElement.getSkipExpression());
    setUseLocalScopeForResultVariable(otherElement.isUseLocalScopeForResultVariable());
    setTriggerable(otherElement.isTriggerable());

    fieldExtensions = new ArrayList<>();
    if (otherElement.getFieldExtensions() != null && !otherElement.getFieldExtensions().isEmpty()) {
      for (FieldExtension extension : otherElement.getFieldExtensions()) {
        fieldExtensions.add(extension.clone());
      }
    }

    customProperties = new ArrayList<>();
    if (otherElement.getCustomProperties() != null && !otherElement.getCustomProperties().isEmpty()) {
      for (CustomProperty property : otherElement.getCustomProperties()) {
        customProperties.add(property.clone());
      }
    }
  }
}