Error while launching the workflow from OAF controller class.

Question

Hi Everyone,
I'm using the below code from the submit button event to launch the workflow. The workflow works fine when I submit for the first time, when i try to submit for the second time from the same session it throws me the error as
"Workflow with item type (XXCEDASP) and item key (SUNDRY-1061) is in progress. Abort existing workflow before launching a new process for this transaction."
The item key which it is showing in the error is the item key for the previous transaction. Also I tried the code that is commented below (code between /* */). If I use the commented code, it doesn't throw me error but cancels all the transactions(that are initiated from the same session) except the last one.
Is there any work around for this from oaf? Please help.
Code:
public void launchCustomWorkFlow(OAPageContext pageContext,
String transaction_id, String requestor) {
String wfItemType = "XXCEDASP";
String wfProcess = "XXCED_MAIN_PROCESS";
OANavigation wfClass = new OANavigation();
String wfItemKey = transaction_id;
/*if (OANavigation.isWorkflowInProgress(pageContext))
String oldKey = OANavigation.getItemKey(pageContext);
if (!OANavigation.abortProcess(pageContext, wfItemType,wfProcess, oldKey,
null, null))
throw new OAException("Error", OAException.ERROR);
System.out.println("transaction ID = " + transaction_id);
//Create Workflow Process
wfClass.createProcess(pageContext, wfItemType, wfProcess, wfItemKey);
wfClass.setItemAttrText(pageContext, wfItemType, wfItemKey,
"TRANSACTION_ID",transaction_id);
wfClass.setItemAttrText(pageContext, wfItemType, wfItemKey,
"REQUESTOR_NAME",requestor);
// Start Workflow Process
wfClass.startProcess(pageContext, wfItemType, wfProcess, wfItemKey);
Thanks
Sunny

Answer 1

Hi Haroon,
Thanks for your reply. I tried doing it using the database procedure too. I'm having different problem if I do so. The problem is that when I submit the first transaction, the workflow is not kicked off. when i submit the second transaction, the first one gets kicked off, when I submit the 3rd one second one gets kicked off. So the last one never gets kicked off. This is the pattern I have observed.
here is my code
OAF Code:
OracleCallableStatement cs = null;
try {
cs = (OracleCallableStatement)getOADBTransaction().createCallableStatement("{call XXCED_APWFL006_SUNDRYAPPR_PKG.INITIATE_WORKFLOW(:1,:2)}", -1);
cs.setString(1,transaction_id);
cs.setString(2,requestor);
cs.execute();
System.out.println("callable statement executed for transaction "+transaction_id);
cs.close();
catch(SQLException e) {
throw new OAException("Error Raised:"+e,OAException.ERROR);
Procedure Code:
PROCEDURE Initiate_Workflow(transaction_id in varchar2,
requestor in varchar2)
is
l_item_type varchar2(20):= 'XXCEDASP';
l_start_process varchar2(30):='XXCED_MAIN_PROCESS';
l_item_key varchar2(30):= transaction_id;
begin
wf_engine.createprocess(l_item_type,l_item_key,l_start_process);
wf_engine.setitemattrtext(l_item_type,l_item_key,'TRANSACTION_ID',transaction_id);
wf_engine.setitemattrtext(l_item_type,l_item_key,'REQUESTOR_NAME',requestor);
wf_engine.startprocess(l_item_type,l_item_
Can you please let me know what am I doing wrong?
Also please send the code that has worked for you.
Thanks
Sunny