How to iterate through multiple records read from a file adapter?

Question

I am reading multiple records from a file using SyncRead file adapter.
I want to iterate through the records to perform some action on every record. How to do this?
I found few threads related to this..but did not get the solution.
Please note that I am using Jdev 10.1.3.4
Thanks

Answer 1

For count expression, I am getting following error:
<Faulthttp://schemas.oracle.com/bpel/extensionhttp://schemas.xmlsoap.org/soap/envelope/>
<faultcode>null:subLanguageExecutionFault</faultcode>
<faultstring>business exception</faultstring>
<faultactor>cx-fault-actor</faultactor>
<detail>
<code>XPathExecutionError</code>
<summary>XPath expression failed to execute. Error while processing xpath expression, the expression is "ora:countNodes(bpws:getVariableData('Invoke_3_SynchRead_OutputVariable','EmpCollection','/ns4:EmpCollection'))", the reason is FOTY0001: type error. Please verify the xpath query. </summary>
</detail>
</Fault>
I hard-coded count, in order to proceed. Then I got following error
<Faulthttp://schemas.oracle.com/bpel/extensionhttp://schemas.xmlsoap.org/soap/envelope/>
<faultcode>null:bindingFault</faultcode>
<faultstring>business exception</faultstring>
<faultactor>cx-fault-actor</faultactor>
<detail>
<code>null</code>
<summary>file:/C:/product/10.1.3.1/OracleAS_1/bpel/domains/default/tmp/.bpel_BPELProcess4_1.0_dc4a703c46a242f69d6cea305b2df3a3.tmp/WriteDA.wsdl [ WriteDA_ptt::insert(VbEmpCollection) ] - WSIF JCA Execute of operation 'insert' failed due to: Mapping Not Found Exception. The mapping [C1] for descriptor [class bpel___localhost_default_BPELProcess4_1_0__MD5_ad2539e1386433a9e059bcc969732f11_.WriteDA.VbEmp] could not be found. The input xml record had an element [VbEmp/C1]. ; nested exception is: ORABPEL-11627 Mapping Not Found Exception. The mapping [C1] for descriptor [class bpel___localhost_default_BPELProcess4_1_0__MD5_ad2539e1386433a9e059bcc969732f11_.WriteDA.VbEmp] could not be found. The input xml record had an element [VbEmp/C1]. Make sure that the input xml is valid relative to the xsd and that the mapping exists in the Mappings.xml. If an old version of the descriptor without this mapping has been loaded by the database adapter, you may need to bounce the app server. If the same descriptor is described in two separate Mappings.xml files, make sure both versions include this attribute/mapping. </summary>
<detail>null</detail>
</detail>
</Fault>
The bpel code is as follows (I can share entire BPEL project..But not sure how to attach to the thread :( )
<?xml version = "1.0" encoding = "UTF-8" ?>
<!--
Oracle JDeveloper BPEL Designer
Created: Wed Feb 03 18:00:26 IST 2010
Author: administrator
Purpose: Synchronous BPEL Process
-->
<process name="BPELProcess4"
targetNamespace="http://xmlns.oracle.com/BPELProcess4"
xmlns="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:bpws="http://schemas.xmlsoap.org/ws/2003/03/business-process/"
xmlns:xp20="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.Xpath20"
xmlns:ns4="http://TargetNamespace.com/InboundService"
xmlns:ids="http://xmlns.oracle.com/bpel/services/IdentityService/xpath"
xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:client="http://xmlns.oracle.com/BPELProcess4"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:xref="http://www.oracle.com/XSL/Transform/java/oracle.tip.xref.xpath.XRefXPathFunctions"
xmlns:hwf="http://xmlns.oracle.com/bpel/workflow/xpath"
xmlns:ns1="http://xmlns.oracle.com/pcbpel/adapter/file/ReadFA/"
xmlns:ehdr="http://www.oracle.com/XSL/Transform/java/oracle.tip.esb.server.headers.ESBHeaderFunctions"
xmlns:ns3="http://xmlns.oracle.com/pcbpel/adapter/db/top/WriteDA"
xmlns:ns2="http://xmlns.oracle.com/pcbpel/adapter/db/WriteDA/"
xmlns:bpelx="http://schemas.oracle.com/bpel/extension"
xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc">
<!--
PARTNERLINKS
List of services participating in this BPEL process
-->
<partnerLinks>
<!--
The 'client' role represents the requester of this service. It is
used for callback. The location and correlation information associated
with the client role are automatically set using WS-Addressing.
-->
<partnerLink name="client" partnerLinkType="client:BPELProcess4"
myRole="BPELProcess4Provider"/>
<partnerLink name="WriteDA" partnerRole="WriteDA_role"
partnerLinkType="ns2:WriteDA_plt"/>
<partnerLink name="ReadFA" partnerRole="SynchRead_role"
partnerLinkType="ns1:SynchRead_plt"/>
</partnerLinks>
<!--
VARIABLES
List of messages and XML documents used within this BPEL process
-->
<variables>
<!-- Reference to the message passed as input during initiation -->
<!-- Reference to the message that will be returned to the requester-->
<variable name="inputVariable"
messageType="client:BPELProcess4RequestMessage"/>
<variable name="outputVariable"
messageType="client:BPELProcess4ResponseMessage"/>
<variable name="Invoke_2_insert_InputVariable"
messageType="ns2:VbEmpCollection_msg"/>
<variable name="Invoke_3_SynchRead_InputVariable"
messageType="ns1:Empty_msg"/>
<variable name="Invoke_3_SynchRead_OutputVariable"
messageType="ns1:EmpCollection_msg"/>
<variable name="Invoke_3_SynchRead_InputVariable_1"
messageType="ns1:Empty_msg"/>
<variable name="Count" type="xsd:integer"/>
<variable name="iterater" type="xsd:integer"/>
</variables>
<!--
ORCHESTRATION LOGIC
Set of activities coordinating the flow of messages across the
services integrated within this business process
-->
<sequence name="main">
<!-- Receive input from requestor. (Note: This maps to operation defined in BPELProcess4.wsdl) -->
<receive name="receiveInput" partnerLink="client"
portType="client:BPELProcess4" operation="process"
variable="inputVariable" createInstance="yes"/>
<!-- Generate reply to synchronous request -->
<invoke name="Invoke_3" partnerLink="ReadFA" portType="ns1:SynchRead_ptt"
operation="SynchRead"
outputVariable="Invoke_3_SynchRead_OutputVariable"
inputVariable="Invoke_3_SynchRead_InputVariable_1"/>
<assign name="Assign_1">
<copy>
<from expression="1"/>
<to variable="iterater"/>
</copy>
<copy>
<from expression="1"/>
<to variable="Count"/>
</copy>
</assign>
<while name="While_1"
condition="bpws:getVariableData('iterater') &lt;= bpws:getVariableData('Count')">
<sequence name="Sequence_2">
<switch name="Switch_1">
<case condition="bpws:getVariableData('Invoke_3_SynchRead_OutputVariable','EmpCollection','/ns4:EmpCollection/ns4:Emp/ns4:C4') = &quot;Pune&quot;">
<sequence name="Sequence_1">
<assign name="Assign_3">
<copy>
<from expression="bpws:getVariableData('Invoke_3_SynchRead_OutputVariable','EmpCollection','/ns4:EmpCollection/ns4:Emp')[bpws:getVariableData('iterater')]"/>
<to variable="Invoke_2_insert_InputVariable"
part="VbEmpCollection"
query="/ns3:VbEmpCollection/ns3:VbEmp"/>
</copy>
</assign>
<invoke name="Invoke_2" partnerLink="WriteDA"
portType="ns2:WriteDA_ptt" operation="insert"
inputVariable="Invoke_2_insert_InputVariable"/>
</sequence>
</case>
<otherwise>
<sequence name="Sequence_3">
<empty name="Empty_1"/>
<assign name="Transform_1">
<bpelx:annotation>
<bpelx:pattern>transformation</bpelx:pattern>
</bpelx:annotation>
<copy>
<from expression="ora:processXSLT('Transformation_3.xsl',bpws:getVariableData('Invoke_3_SynchRead_OutputVariable','EmpCollection'))"/>
<to variable="Invoke_2_insert_InputVariable"
part="VbEmpCollection"/>
</copy>
</assign>
</sequence>
</otherwise>
</switch>
<assign name="Assign_2">
<copy>
<from expression="bpws:getVariableData('iterater') + 1"/>
<to variable="iterater"/>
</copy>
</assign>
</sequence>
</while>
<reply name="replyOutput" partnerLink="client"
portType="client:BPELProcess4" operation="process"
variable="outputVariable"/>
</sequence>
</process>
From the process flow, I can see that the array element expression works and the first employee record is correctly assigned to the Invoke_2_Input_Variable.
However Invoke_2 is erroring out.
Thanks
Edited by: user8645981 on Feb 5, 2010 2:44 AM