Calling Asynch Service in a Parallel Flow (FlowN)

Hi,
In one of the processes, we have a requirement to call an Asynch Service within parallel flow, meaning that, the same Asynch Service would be called several times, with different payload, dependent on the number of lines, which is decided during the run time. When this Async Service is called, the expectation is, after the flow is completed, it will call back the exact location, where the call was made from, to the corresponding line.
This second Asynch Service is also depicted by a BPEL process. When we have multiple such calls made, the Receive after the invoke from the main process, fails, with the following message:
<conflictingReceive>
<part name="summary" >
<summary>Conflicting receive. Another receive activity or equivalent (currently, onMessage branch in a pick activity) has already been enabled with the partnerLink "MobileNumberPortabilityService", operation name "onResult" and correlation set "" (or conversation id). Appendix A - Standard Faults in the BPEL 1.1 specification specifies a fault should be thrown under these conditions. </summary>
</part>
</conflictingReceive>
When I looked into the conversation id of the sub-process, the conversation id seems to be the same for every process which got initiated as follows:
bpel://localhost/default/ROTelcoNewOrder~1.0/7358-BpInv14-BpSeq31.330-2
Given this scenario, how would the sub-process know to call back the exact instance (within the parallel flow), where the call came from, so that it can exactly join the location. Does it require a different kind of implementation, for parallel flows, please..
Any pointers or guidelines, please..
Thanks and Regards,
Vijay.

Vijay,
this may be caused by a bug in the FlowN (bugnumber 4944123), where the values used on the invokes are the same for all the calls. For an asynchronous call, this can be bypassed by making two loops based on the number of lines (loop 1 for invoke, loop 2 for receive). That way you won't have any trouble with the correlation as well.
Hth,
Mike

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Parallel Flow invokes async services with incorrect parameters

Hi
I'm calling an async service using 2 partnerlinks in a parallel flow.
The input variables are being assigned correctly but one of the invokes is using the wrong values.
The problem appears to be around the use of a shared variable (Invoke_initiate_InputVariable) that is 'copied' to each of the invoke variables
On invocation both services are iincorrectly nvoked with:
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Example BPEL code:
<process name="ParallelTest" targetNamespace="http://itv.com/ParallelTest"
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:ns1="http://itv.com/HumanTask"
xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:bpelx="http://schemas.oracle.com/bpel/extension"
xmlns:client="http://itv.com/ParallelTest"
xmlns:ora="http://schemas.oracle.com/xpath/extension"
xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc">
<partnerLinks>
<partnerLink name="client" partnerLinkType="client:ParallelTest"
myRole="ParallelTestProvider"
partnerRole="ParallelTestRequester"/>
<partnerLink myRole="HumanTaskRequester" name="HumanTask_1"
partnerRole="HumanTaskProvider"
partnerLinkType="ns1:HumanTask"/>
<partnerLink myRole="HumanTaskRequester" name="HumanTask_2"
partnerRole="HumanTaskProvider"
partnerLinkType="ns1:HumanTask"/>
</partnerLinks>
<variables>
<variable name="inputVariable"
messageType="client:ParallelTestRequestMessage"/>
<variable name="outputVariable"
messageType="client:ParallelTestResponseMessage"/>
<variable name="Invoke_initiate_InputVariable"
messageType="ns1:HumanTaskRequestMessage"/>
<variable name="Invoke_1_initiate_InputVariable"
messageType="ns1:HumanTaskRequestMessage"/>
<variable name="Invoke_2_initiate_InputVariable"
messageType="ns1:HumanTaskRequestMessage"/>
<variable name="Receive_1_onResult_InputVariable"
messageType="ns1:HumanTaskResponseMessage"/>
<variable name="Receive_2_onResult_InputVariable"
messageType="ns1:HumanTaskResponseMessage"/>
</variables>
<sequence name="main">
<receive name="receiveInput" partnerLink="client"
portType="client:ParallelTest" operation="initiate"
variable="inputVariable" createInstance="yes"/>
<assign name="Assign_2">
<copy>
<from expression="'A Title'"/>
<to variable="Invoke_initiate_InputVariable" part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Title"/>
</copy>
<copy>
<from expression="5"/>
<to variable="Invoke_initiate_InputVariable" part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Priority"/>
</copy>
<copy>
<from expression="'GRA'"/>
<to variable="Invoke_initiate_InputVariable" part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:UserGroups"/>
</copy>
</assign>
<flow name="Flow_1">
<sequence name="Sequence_1">
<assign name="Assign_1">
<copy>
<from variable="Invoke_initiate_InputVariable"/>
<to variable="Invoke_2_initiate_InputVariable"/>
</copy>
<copy>
<from expression="'Title2'"/>
<to variable="Invoke_2_initiate_InputVariable"
part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Title"/>
</copy>
<copy>
<from expression="2"/>
<to variable="Invoke_2_initiate_InputVariable"
part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Priority"/>
</copy>
<copy>
<from expression="'STC'"/>
<to variable="Invoke_2_initiate_InputVariable"
part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:UserGroups"/>
</copy>
</assign>
<invoke name="Invoke_2" partnerLink="HumanTask_2"
portType="ns1:HumanTask" operation="initiate"
inputVariable="Invoke_2_initiate_InputVariable"/>
<receive name="Receive_2" partnerLink="HumanTask_2"
portType="ns1:HumanTaskCallback" operation="onResult"
variable="Receive_1_onResult_InputVariable"
createInstance="no"/>
</sequence>
<sequence name="Sequence_1">
<assign name="Assign_1">
<copy>
<from variable="Invoke_initiate_InputVariable"/>
<to variable="Invoke_1_initiate_InputVariable"/>
</copy>
<copy>
<from expression="'Title1'"/>
<to variable="Invoke_1_initiate_InputVariable"
part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Title"/>
</copy>
<copy>
<from expression="3"/>
<to variable="Invoke_1_initiate_InputVariable"
part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Priority"/>
</copy>
<copy>
<from expression="'NTC'"/>
<to variable="Invoke_1_initiate_InputVariable"
part="payload"
query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:UserGroups"/>
</copy>
</assign>
<invoke name="Invoke_1" partnerLink="HumanTask_1"
portType="ns1:HumanTask" operation="initiate"
inputVariable="Invoke_1_initiate_InputVariable"/>
<receive name="Receive_1" partnerLink="HumanTask_1"
portType="ns1:HumanTaskCallback" operation="onResult"
variable="Receive_2_onResult_InputVariable"
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</sequence>
</flow>
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inputVariable="outputVariable"/>
</sequence>
</process>

Thanks Marc, I've done what you suggested but it hasn't fixed the problem.
Here is the updated process with scopes and local variables:
<process name="ParallelTest" targetNamespace="http://itv.com/ParallelTest" 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:ns1="http://itv.com/HumanTask" xmlns:ldap="http://schemas.oracle.com/xpath/extension/ldap" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:bpelx="http://schemas.oracle.com/bpel/extension" xmlns:client="http://itv.com/ParallelTest" xmlns:ora="http://schemas.oracle.com/xpath/extension" xmlns:orcl="http://www.oracle.com/XSL/Transform/java/oracle.tip.pc.services.functions.ExtFunc">
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          <partnerLink myRole="HumanTaskRequester" name="HumanTask_2" partnerRole="HumanTaskProvider" partnerLinkType="ns1:HumanTask"/>
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          <variable name="inputVariable" messageType="client:ParallelTestRequestMessage"/>
          <variable name="outputVariable" messageType="client:ParallelTestResponseMessage"/>
          <variable name="Invoke_initiate_InputVariable" messageType="ns1:HumanTaskRequestMessage"/>
          <variable name="Receive_1_onResult_InputVariable" messageType="ns1:HumanTaskResponseMessage"/>
          <variable name="Receive_2_onResult_InputVariable" messageType="ns1:HumanTaskResponseMessage"/>
     </variables>
     <sequence name="main">
          <receive name="receiveInput" partnerLink="client" portType="client:ParallelTest" operation="initiate" variable="inputVariable" createInstance="yes"/>
          <assign name="Assign_2">
               <copy>
                    <from expression="'A Title'"/>
                    <to variable="Invoke_initiate_InputVariable" part="payload" query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Title"/>
               </copy>
               <copy>
                    <from expression="5"/>
                    <to variable="Invoke_initiate_InputVariable" part="payload" query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Priority"/>
               </copy>
               <copy>
                    <from expression="'GRA'"/>
                    <to variable="Invoke_initiate_InputVariable" part="payload" query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:UserGroups"/>
               </copy>
          </assign>
          <flow name="Flow_1">
               <sequence name="Sequence_2">
                    <scope name="Scope_2">
                         <variables>
                              <variable name="Invoke_2_initiate_InputVariable" messageType="ns1:HumanTaskRequestMessage"/>
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                         <sequence name="Sequence_2">
                              <assign name="Assign_1">
                                   <copy>
                                        <from variable="Invoke_initiate_InputVariable"/>
                                        <to variable="Invoke_2_initiate_InputVariable"/>
                                   </copy>
                                   <copy>
                                        <from expression="'Title2'"/>
                                        <to variable="Invoke_2_initiate_InputVariable" part="payload" query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Title"/>
                                   </copy>
                                   <copy>
                                        <from expression="2"/>
                                        <to variable="Invoke_2_initiate_InputVariable" part="payload" query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Priority"/>
                                   </copy>
                                   <copy>
                                        <from expression="'STC'"/>
                                        <to variable="Invoke_2_initiate_InputVariable" part="payload" query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:UserGroups"/>
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                              </assign>
                              <invoke name="Invoke_2" partnerLink="HumanTask_2" portType="ns1:HumanTask" operation="initiate" inputVariable="Invoke_2_initiate_InputVariable"/>
                              <receive name="Receive_2" partnerLink="HumanTask_2" portType="ns1:HumanTaskCallback" operation="onResult" variable="Receive_2_onResult_InputVariable" createInstance="no"/>
                         </sequence>
                    </scope>
               </sequence>
               <sequence name="Sequence_1">
                    <scope name="Scope_1">
                         <variables>
                              <variable name="Invoke_1_initiate_InputVariable" messageType="ns1:HumanTaskRequestMessage"/>
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                         <sequence name="Sequence_3">
                              <assign name="Assign_1">
                                   <copy>
                                        <from variable="Invoke_initiate_InputVariable"/>
                                        <to variable="Invoke_1_initiate_InputVariable"/>
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                                   <copy>
                                        <from expression="'Title1'"/>
                                        <to variable="Invoke_1_initiate_InputVariable" part="payload" query="/ns1:HumanTaskProcessRequest/ns1:HumanTask/ns1:Title"/>
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Hi all,
As known, each branch of a parallel flow activity must be completed for rest of the BPEL execution continues. Let me expose a scenario:
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BPEL/ESB Training:
http://www.ibiztrack.com/html/oracle-bpel-soa-training.html

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</configurations>
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my bpel.xml
<?xml version = '1.0' encoding = 'UTF-8'?>
<BPELSuitcase>
<BPELProcess id="SyncParallelFlow" src="SyncParallelFlow.bpel">
<partnerLinkBindings>
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<property name="wsdlLocation">SyncParallelFlow.wsdl</property>
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<property name="nonBlockingInvoke">true</property>
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<property name="inMemoryOptimization">true</property>
<property name="completionPersistPolicy">faulted</property>
<property name="completionPersistLevel">All</property>
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</BPELProcess>
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Well, remember inMemoryOptimization works only for Synchronous-Transient (Without any dehydration in between) processes.
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[email protected]
http://www.ibiztrack.com

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increment variable counter by 1
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Regards
Marlon Dumas (m . dumas @ qut . edu . au)

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2)     Added a Transport header in the Response action on the main pipeline
3)     Used Inbound variable to extract however it turns up empty.
any useful ideas would be appreciated. Thanks

When you call the external service it returns a SessionID in the header?
If that is the case then test the service from sbconsole debug console and in the invocation trace check the value of $inbound variable within the context of service callout and check if external service has actually added a transport header for session ID.

CVP call server service?

How call server service(ICM,SIP,IVR) are intercommunicating. i was gone through comprehensive call flow, when call hits on CVP with help of SIP service and communicate with ICM using ICM service.
HOw ICM and SIP service are communicating.

Hi Bala,
The call server uses a central messaging bus to allow each service to communicate. All the messages between these services passes via Message Bus.
Regards,
Senthil

Error while calling ejb service call from BPM service

Hi,
We are using the Oracle 11.1.1.5.0
We are calling ejb service call from BPM service to update the data to Oracle database.
We are getting the below error when we executing the ejb service call from BPM Service.
<Error> <EJB> <BEA-010026> <Exception occurred du
ring commit of transaction Name=[EJB oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliver
yBean.handleCallback(java.lang.String,java.lang.String,java.lang.String,int,bool
ean)],Xid=BEA1-45B91984D57960994897(30845116),Status=Rolled back. [Reason=javax.
transaction.xa.XAException: JDBC driver does not support XA, hence cannot be a p
articipant in two-phase commit. To force this participation, set the GlobalTrans
actionsProtocol attribute to LoggingLastResource (recommended) or EmulateTwoPhas
eCommit for the Data Source = EBSConnection],numRepliesOwedMe=0,numRepliesOwedOt
hers=0,seconds since begin=1,seconds left=60,XAServerResourceInfo[SOADataSource_
base_domain]=(ServerResourceInfo[SOADataSource_base_domain]=(state=rolledback,as
signed=soa_server1),xar=SOADataSource,re-Registered = false),XAServerResourceInf
o[ArCnTaskForms@EBSConnection@EBSConnection_base_domain]=(ServerResourceInfo[ArC
nTaskForms@EBSConnection@EBSConnection_base_domain]=(state=rolledback,assigned=s
oa_server1),xar=weblogic.jdbc.wrapper.JTSEmulateXAResourceImpl@fa5476,re-Registe
red = false),SCInfo[base_domain+soa_server1]=(state=rolledback),properties=({web
logic.jdbc.remote.EBSConnection=t3://192.168.10.114:8001, weblogic.transaction.n
ame=[EJB oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliveryBean.handleCallback(java.la
ng.String,java.lang.String,java.lang.String,int,boolean)]}),local properties=({w
eblogic.jdbc.jta.SOADataSource=[ No XAConnection is attached to this TxInfo ]}),
OwnerTransactionManager=ServerTM[ServerCoordinatorDescriptor=(CoordinatorURL=soa
server1+192.168.10.114:8001+basedomain+t3+, XAResources={eis/tibjms/Queue, eis
/activemq/Queue, WLStore_base_domain_BPMJMSFileStore, WLStore_base_domain__WLS_s
oa_server1, eis/fioranomq/Topic, eis/jbossmq/Queue, eis/Apps/Apps, eis/websphere
mq/Queue, eis/AQ/aqSample, WLStore_base_domain_SOAJMSFileStore, eis/aqjms/Queue,
WSATGatewayRM_soa_server1_base_domain, eis/sunmq/Queue, eis/pramati/Queue, SSCo
nnectionDS_base_domain, eis/tibjms/Topic, eis/tibjmsDirect/Queue, eis/wls/Queue,
eis/tibjmsDirect/Topic, EDNDataSource_base_domain, eis/wls/Topic, eis/aqjms/Top
ic, RL3TST_base_domain, ArCnTaskForms@EBSConnection@EBSConnection_base_domain, S
OADataSource_base_domain, WLStore_base_domain_UMSJMSFileStore_auto_2},NonXAResou
rces={})],CoordinatorURL=soa_server1+192.168.10.114:8001+base_domain+t3+): weblo
gic.transaction.RollbackException: Could not prepare resource 'ArCnTaskForms@EBS
Connection@EBSConnection_base_domain
JDBC driver does not support XA, hence cannot be a participant in two-phase comm
it. To force this participation, set the GlobalTransactionsProtocol attribute to
LoggingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source
= EBSConnection
at weblogic.transaction.internal.TransactionImpl.throwRollbackException(
TransactionImpl.java:1881)
at weblogic.transaction.internal.ServerTransactionImpl.internalCommit(Se
rverTransactionImpl.java:345)
at weblogic.transaction.internal.ServerTransactionImpl.commit(ServerTran
sactionImpl.java:239)
at weblogic.ejb.container.internal.BaseLocalObject.postInvoke1(BaseLocal
Object.java:622)
at weblogic.ejb.container.internal.BaseLocalObject.__WL_postInvokeTxRetr
y(BaseLocalObject.java:455)
at weblogic.ejb.container.internal.SessionLocalMethodInvoker.invoke(Sess
ionLocalMethodInvoker.java:52)
at oracle.bpm.bpmn.engine.ejb.impl.BPMNDeliveryBean_of8dk6_ICubeDelivery
LocalBeanImpl.handleCallback(Unknown Source)
at com.collaxa.cube.engine.dispatch.message.instance.CallbackDeliveryMes
sageHandler.handle(CallbackDeliveryMessageHandler.java:47)
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(Dispatc
hHelper.java:140)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.process(BaseDispatc
hTask.java:88)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTas
k.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:662)
Caused by: javax.transaction.xa.XAException: JDBC driver does not support XA, he
nce cannot be a participant in two-phase commit. To force this participation, se
t the GlobalTransactionsProtocol attribute to LoggingLastResource (recommended)
or EmulateTwoPhaseCommit for the Data Source = EBSConnection
at weblogic.jdbc.wrapper.JTSXAResourceImpl.prepare(JTSXAResourceImpl.jav
a:83)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:1327)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:513)
at weblogic.transaction.internal.ServerSCInfo$1.run(ServerSCInfo.java:36
8)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTunin
gWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
.>
<12 Oct, 2012 12:34:40 PM IST> <Error> <oracle.soa.bpel.engine.dispatch> <BEA-00
0000> <failed to handle message
javax.transaction.xa.XAException: JDBC driver does not support XA, hence cannot
be a participant in two-phase commit. To force this participation, set the Globa
lTransactionsProtocol attribute to LoggingLastResource (recommended) or EmulateT
woPhaseCommit for the Data Source = EBSConnection
at weblogic.jdbc.wrapper.JTSXAResourceImpl.prepare(JTSXAResourceImpl.jav
a:83)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:1327)
at weblogic.transaction.internal.XAServerResourceInfo.prepare(XAServerRe
sourceInfo.java:513)
at weblogic.transaction.internal.ServerSCInfo$1.run(ServerSCInfo.java:36
8)
at weblogic.work.SelfTuningWorkManagerImpl$WorkAdapterImpl.run(SelfTunin
gWorkManagerImpl.java:528)
at weblogic.work.ExecuteThread.execute(ExecuteThread.java:209)
at weblogic.work.ExecuteThread.run(ExecuteThread.java:178)
>
<12 Oct, 2012 12:34:40 PM IST> <Error> <oracle.soa.bpel.engine.dispatch> <BEA-00
0000> <Failed to handle dispatch message ... exception ORABPEL-05002
Message handle error.
error while attempting to process the message "com.collaxa.cube.engine.dispatch.
message.instance.CallbackDeliveryMessage"; the reported exception is: Error comm
itting transaction:; nested exception is: javax.transaction.xa.XAException: JDBC
driver does not support XA, hence cannot be a participant in two-phase commit.
To force this participation, set the GlobalTransactionsProtocol attribute to Log
gingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source = EB
SConnection
This error contained an exception thrown by the message handler.
Check the exception trace in the log (with logging level set to debug mode).
ORABPEL-05002
Message handle error.
error while attempting to process the message "com.collaxa.cube.engine.dispatch.
message.instance.CallbackDeliveryMessage"; the reported exception is: Error comm
itting transaction:; nested exception is: javax.transaction.xa.XAException: JDBC
driver does not support XA, hence cannot be a participant in two-phase commit.
To force this participation, set the GlobalTransactionsProtocol attribute to Log
gingLastResource (recommended) or EmulateTwoPhaseCommit for the Data Source = EB
SConnection
This error contained an exception thrown by the message handler.
Check the exception trace in the log (with logging level set to debug mode).
at com.collaxa.cube.engine.dispatch.DispatchHelper.handleMessage(Dispatc
hHelper.java:207)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.process(BaseDispatc
hTask.java:88)
at com.collaxa.cube.engine.dispatch.BaseDispatchTask.run(BaseDispatchTas
k.java:64)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec
utor.java:886)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor
.java:908)
at java.lang.Thread.run(Thread.java:662)
>
Could any body help on this issue.It is little bit urgent for us to resolve.
Thanks in advance.

Thanks Sudipto Desmukh,
The link is helpful me to resolve this issue.
Thanks,
Narasimha E

Calling web service from oracle forms 10g

Problem Description:
I'm following the steps as per the doc:
http://www.oracle.com/technology/products/forms/htdocs/10gr2/howto/webservicefromforms/ws_10_1_3_from_forms.html
to create a java stub to call external web service and then use java importer in oracle forms to call this web service from oracle forms.
WSDL for external web service used is http://gend:83/DesignService.svc?wsdl
The service was developed by us.
Calling the web service using JDeveloper works fine but when I complie in Oracle Forms it returns wrong number of types of arguments in call SENDHELLO.
The code from oracle form to call web service is as below:
DECLARE
jo ora_java.jobject;
xo ora_java.jobject;
rv varchar2(2000);
ex ora_java.jobject;
str varchar2(100);
BEGIN
jo := GendServiceClient.new;
rv := GendServiceClient.sendHello('Nora');
EXCEPTION
WHEN ORA_JAVA.JAVA_ERROR then
message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
WHEN ORA_JAVA.EXCEPTION_THROWN then
ex := ORA_JAVA.LAST_EXCEPTION;
message(Exception_.toString(ex));
END;
Any help/ideas on this is greatly appreciated. Thanks.
Edited by: KE Nora Loera on Jun 1, 2012 1:24 PM

My primary skill is PL/SQL but the only information I found on Oracle's site to call a web service from a 10g Form was creating a jar file and importing the java class. Since I don't want to ask our corporate IT to make changes on the UNIX box for the jar files I went a different route.
I use UTL_HTTP.BEGIN_REQUEST to call a URL then load I load the data to a table as a CLOB since we have more than 4000 characters. Now I need to parse the XML and load it into a form. I have never done this so if there is a helpful site please let me know. I have looked at several sites but none do what I want.
Thanks

Calling web service from oracle forms fails with ORA_JAVA.JAVA_ERROR

Problem Description:
I'm following the steps as per the doc:
http://www.oracle.com/technology/products/forms/htdocs/10gr2/howto/webservicefromforms/ws_10_1_3_from_forms.html
to create a java stub to call external web service and then use java importer in oracle forms to call this web service from oracle forms.
WSDL for external web service used is http://www.webservicex.net/CurrencyConverter.asmx?wsdl
Calling the web service using JDeveloper works fine but from Oracle Forms returns ORA_JAVA.JAVA_ERROR; Unable to call out to Java, Invalid object type for argument 1
The code from oracle form to call web service is as below:
DECLARE
jo ora_java.jobject;
rv ora_java.jobject;
ex ora_java.jobject;
outString varchar2(2000);
BEGIN
jo:= CurrencyConvertorStub.new;
--This will get the exchange rate from US Dollars to UK Sterling.
rv:= CurrencyConvertorStub.ConversionRate(jo,'CAD','USD');
message (float_.floatValue(RV));
EXCEPTION
WHEN ORA_JAVA.JAVA_ERROR then
message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
WHEN ORA_JAVA.EXCEPTION_THROWN then
ex := ORA_JAVA.LAST_EXCEPTION;
outString := Exception_.toString(ex);
message(outString);
END;
Any help/ideas on this is greatly appreciated. Thanks.

Yes, it is the message line - so basically this call fails => rv:= CurrencyConvertorStub.ConversionRate(jo,'CAD','USD'); and control goes in the exception block
WHEN ORA_JAVA.JAVA_ERROR then
message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
Below is the code from java stub that was generated using JDeveloper by using web services stub/skeleton and associating the WSDL
public Double ConversionRate(String FromCurrency, String ToCurrency) throws Exception
URL endpointURL = new URL(endpoint);
Envelope requestEnv = new Envelope();
Body requestBody = new Body();
Vector requestBodyEntries = new Vector();
String wrappingName = "ConversionRate";
String targetNamespace = "http://www.webserviceX.NET/";
Vector requestData = new Vector();
requestData.add(new Object[] {"FromCurrency", FromCurrency});
requestData.add(new Object[] {"ToCurrency", ToCurrency});
requestBodyEntries.addElement(toElement(wrappingName, targetNamespace, requestData));
requestBody.setBodyEntries(requestBodyEntries);
requestEnv.setBody(requestBody);
Message msg = new Message();
msg.setSOAPTransport(m_httpConnection);
msg.send(endpointURL, "http://www.webserviceX.NET/ConversionRate", requestEnv);
Envelope responseEnv = msg.receiveEnvelope();
Body responseBody = responseEnv.getBody();
Vector responseData = responseBody.getBodyEntries();
return (Double)fromElement((Element)responseData.elementAt(0), java.lang.Double.class);
}

Calling Asynch Service in a Parallel Flow (FlowN)

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