Unable to use ora:countNodes in OBPM 11g

Question

Hi,
I have a BPM Data Object 'solutionProposal' which has the following value after picking up the response from a service call.
<?xml version="1.0" encoding="UTF-8" ?>
<solutionProposal xmlns="http://agreement.pdom.nordea.com/solutionproposal/object/v2">
<initiatedByCustomer xmlns="">53273267</initiatedByCustomer>
<solutionProposalId xmlns="">12787382</solutionProposalId>
     <!--Zero or more repetitions: -->
<tailoredPSO xmlns="">
<productServiceOfferGroupId>DEPOSIT</productServiceOfferGroupId>
<tailoredItemId>12</tailoredItemId>
</tailoredPSO>
<tailoredPSO xmlns="">
<productServiceOfferGroupId>NCL</productServiceOfferGroupId>
<tailoredItemId>12</tailoredItemId>
</tailoredPSO>
</solutionProposal>
As can be seen, "TailoredPSO" is directly defined under "SolutionProposal" and can have a repetition of 1 til 20. The schema definition is as below.
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema xmlns:sp="http://agreement.pdom.nordea.com/solutionproposal/object/v2" xmlns:xsd="http://www.w3.org/2001/XMLSchema" targetNamespace="http://agreement.pdom.nordea.com/solutionproposal/object/v2">
<xsd:element name="solutionProposal" type="sp:SolutionProposal"/>
<xsd:complexType name="SolutionProposal">
     <xsd:sequence>
          <xsd:element name="initiatedByCustomer" type="sp:GenericId"/>
          <xsd:element name="solutionProposalId" type="sp:GenericId"/>
          <xsd:element name="tailoredPSO" type="sp:TailoredPSO" minOccurs="0" maxOccurs="unbounded"/>
     </xsd:sequence>
</xsd:complexType>
<xsd:complexType name="TailoredPSO">
     <xsd:sequence>
          <xsd:element name="productServiceOfferGroupId" type="sp:GenericId"/>
          <xsd:element name="tailoredItemId" type="sp:GenericId"/>
     </xsd:sequence>
</xsd:complexType>
<xsd:simpleType name="GenericId">
     <xsd:restriction base="xsd:string">
          <xsd:maxLength value="22"/>
     </xsd:restriction>
</xsd:simpleType>
</xsd:schema>
I have not been able to use ora:countNode expression in OBPM 11g (Patch Set 2) while trying to evaluate how many "TailoredPSO" element are there is the response. Any help will be appreciated.
Following are the various permutations I have tried out but all of them return a response of 1 only instead of expected 2.
ora:countNodes('solutionProposal','solutionProposal','//solutionProposal/tailoredPSO')
ora:countNodes('solutionProposal','//solutionProposal/tailoredPSO')
ora:countNodes('solutionProposal','//*:solutionProposal/*:tailoredPSO')
ora:countNodes('solutionProposal','TailoredPSO','//solutionProposal/tailoredPSO')
ora:countNodes('solutionProposal','tailoredPSO','//solutionProposal/tailoredPSO')
Nothing seems to return a value of 2.
Previously we have only used OBPM 10g and ALBPM 6.0 SP4 and there were other ways of working with this problem.
Thanks
Edited by: user9019487 on Jan 31, 2011 7:09 AM

Answer 1

Hi,
To access the number of nodes within a list you can do as follows:
instead of using ora:countNodes('solutionProposal','//solutionProposal/tailoredPSO') choose "simple function" instead of "XPath" and, in your case:
solutionProposal.tailoredPSO.length() will give you the size of the array you're trying to get.
Hope it helps.
Pablo