Handling collection in OBR facts

Question

Is it possible to pass collection of data as input facts to ORB? How can we access individual element in the collection when define the Rules?
For example, I want to send list of employees to the OBR and define rule that will iterate over employees and return something.

Answer 1

Hi
It is possible to pass collection of data to OBR using xsd and jaxb classes..
Create xsd with following elements
create employee structure
create employee collection structure with employee as element which is of type employee structure
create message element which contains employeecollection element which is of type employee collection structure.
Here I am just giving an idea of how xsd will be:
<xs:element name="message" >
<xs:sequence>
<xs:element name="employeeCollection" type="employeeCollectionType"/>
</xs:sequence>
</xe:element>
<xs:complextype name="employeeCollectionType">
<xs:sequence>
<xs:element name="employee" type="employeeStructure" minOccurs="1" maxoccurs="unbounded"/>
</xs:sequence>
</xs:complextype>
<xs:complextype name="employeeStructure">
<xs:sequence>
<xs:element name="id" type="int"/>
<xs:element name="name" type="string"/>
</xs:sequence>
</xs:complextype>
Provide above completed xsd in Buesiness rules it will then create JAXB classes.
1.you can get the employee collection object like following in BR functions
java.util.List set = message.getEmployeeCollection();
2.while iterate through above list object and you can get induvidual employee data as object.
3.once you integrate business rules in BPEL , using transform collection employee's data into employeeCollection element.
Thanks
Seshagiri.Rayala
http://soabpel.wordpress.com