Problems populating complex type structre in bpel

Question

Hi All,
I'm trying to populate with no good results a complexType variable that contains n maxOccurs="unbounded" element.
This is the schema:
<xsd:complexType name="logWarnParam">
<xsd:sequence>
<xsd:element name="Message" type="xsd:string"/>
<xsd:element name="MessageParam" type="xsd:string" maxOccurs="unbounded"/>
<xsd:element name="context" type="ns1:context"/>
</xsd:sequence>
</xsd:complexType>
This is the bpel variable
<variable name="logWarnParamVariable" element="ns3:logWarnParam"/>
and these are the parts of the bpel that applies to this case:
<while name="While1"
condition="bpws:getVariableData('i')&lt;number(5)">
<scope name="Log1" variableAccessSerializable="no">
<sequence name="Sequence1">
<assign name="assign1">
*<bpelx:append>*
*<bpelx:from expression="string('value1')"/>*
*<bpelx:to variable="logWarnParamVariable"*
query="/ns3:logWarnParam/MessageParam"/>
*</bpelx:append>*
<copy>
<from expression="bpws:getVariableData('i')+1"/>
<to variable="contador"/>
</copy>
</assign>
</sequence>
</scope>
</while>
Can anyone help me with the way to populate this structure?
Thanks in advance!

Answer 1

The complexType element defines a complex type. A complex type element is an XML element that contains other elements and/or attributes.
Its a place holder to hold different types of element or same set of elements.
In the below example you will get more information.
*<xs:element name="employee" type="fullpersoninfo"/>*
*<xs:complexType name="personinfo">*
<xs:sequence>
<xs:element name="firstname" type="xs:string"/>
<xs:element name="lastname" type="xs:string"/>
</xs:sequence>
</xs:complexType>
*<xs:complexType name="fullpersoninfo">*
<xs:complexContent>
<xs:extension base="personinfo">
<xs:sequence>
<xs:element name="address" type="xs:string"/>
<xs:element name="city" type="xs:string"/>
<xs:element name="country" type="xs:string"/>
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
In this example i would like to have more than one employee information. So i have created a complexType as "fullpersoninfo", Then in run time i will populate the values inside "fullpersoninfo"
not the employee or fullpersoninfo variable, rather i will populate the firstname, lastname, address, city and country.
The out put will be having value like the below.
<employee>
     <firstname></firstname>
     <lastname></lastname>
     <address>Duke Street</address>
     <city>Liverpool</city>
     <country>UK</country>
</employee>
<employee>
     <firstname></firstname>
     <lastname></lastname>
     <address>Duke Street</address>
     <city>Liverpool</city>
     <country>UK</country>
</employee>
I will populate the elements inside the complex type element not it self.
I took the example from below URL
http://www.w3schools.com/schema/el_complextype.asp
You should modify your assign as below.
<bpelx:append>
<bpelx:from expression="string('value1')"/>
<bpelx:to variable="logWarnParamVariable"
query="*/ns3:logWarnParamVariable/ns3:logWarnParam/ns3:MessageParam*"/>
</bpelx:append>
Let me know how you go !!
Thanks,
Vijay