Mapping enumeration (multiple values) to a 1..n field

Question

Hi Experts,
I try to pass an enumeration (with three values) to a field of type string (1..unbounded). Therefor I have created an XSD file with this three values:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xsd:schema xmlns="http://XXXX.net/Reservation/Sharepoint"
  xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://XXXX.net/Reservation/Sharepoint">
  <xsd:complexType name="SubscribeEventTypes">
  <xsd:sequence>
  <xsd:element name="EventTypes">
  <xsd:complexType>
  <xsd:sequence>
  <xsd:element maxOccurs="unbounded" name="EventType">
  <xsd:simpleType>
  <xsd:restriction base="xsd:string">
  <xsd:enumeration value="CreatedEvent" />
  <xsd:enumeration value="ModifiedEvent" />
  <xsd:enumeration value="DeletedEvent" />
  </xsd:restriction>
  </xsd:simpleType>
  </xsd:element>
  </xsd:sequence>
  </xsd:complexType>
  </xsd:element>
  </xsd:sequence>
  </xsd:complexType>
</xsd:schema>
The XSD based on the Microsoft Web Service Interface for Exchange Server (OLX).
Another try of myself was the string-joing extraction (but did not worked for me):
string-join("CreatedEvent,ModifiedEvent,DeletedEvent",",")
Without this values, I can't start the accordant operation.
Many Thanks for help.
Cheers,
Cengiz

Answer 1

No, it's not a part of response what I'm talking about. I try to pass three values to an enumeration field which belongs to the request object. Microsoft has a Web Service interface to access the content of the MS Exchange (OLX) server. If you want to start this operation, you need to pass these values to the request object's parameter named "EventTypes":
"CreatedEvent", "ModifiedEvent" and "DeletedEvent"
I have tried to do this with the BPM exclusion "single-join". Here you can define these three values and a separater (e. g. a comma), but has not worked for me.
Cheers,
Cengiz