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Presentation Parameters

If you query on presentation parameters, additional information is returned.

<tsst:propertyValues 
      xmlns:tsst=
        "http://schemas.active-endpoints.com/b4p/wshumantask/
            2007/10/aeb4p-task-state-wsdl.xsd">
   <tsst:propertyValue 
       name="parentprocessid" type="ns:string" 
       xmlns:ns="http://www.w3.org/2001/XMLSchema">5013
   </tsst:propertyValue>
</tsst:propertyValues>

If no task is deployed with the presentation parameter, an error message is returned:

<htdt:illegalArgument 
   xmlns:htdt="http://www.example.org/WS-HT/api/xsd">
      Task parameter property 'parentProcessId1' does not
       exist.
</htdt:illegalArgument>

However, if no task with this parameter exists but it is a valid name, the returned information is empty. Here is an example of this kind of parameter:

<aetgt:getMyTasksResponse 
   xmlns:aetgt="http://www.example.org/WS-HT/api/xsd" 
   xmlns:htdt="http://www.example.org/WS-HT/api/xsd" 
   xmlns:result="http://saxon.sf.net/xquery-results" 
   xmlns:tss="http://www.activebpel.org/b4p/2007/10/wshumantask/aeb4p-task-storage.wsdl" 
   xmlns:xs="http://www.w3.org/2001/XMLSchema" 
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" >

This element lists tasks that a

parentProcessId

parameter and also returns what this value is:

<xsd:getMyTasks>
   <xsd:taskType>TASK</xsd:taskType>
   <xsd:whereClause>parentProcessId >''</xsd:whereClause> 
</xsd:getMyTasks>

The following table summarized what can occur when you use a presentation parameter.

Presentation Parameter	Is it Deployed	Actual Values	Query	Result
MyString	Yes	"a", "b"	<a where clause >	<a parameter result >
MyStringB	Yes	No Values	<a where clause >	<a parameter result >
MyStringC	No	Not applicable	<a where clause >	<a parameter result >