Obtaining the instance of the processing node

I have a process that polls a database and I only want one soa instance to poll the database.
I have found the meta link document that says how to do it.
They provided the following example:
<binding name="receiveService_binding" type="tns:receiveService_ptt">
<pc:inbound_binding/>
<operation name="receive">
<jca:operation
ActivationSpec="oracle.tip.adapter.db.DBActivationSpec"
DescriptorName="receiveService.Movies"
QueryName="receiveService"
PollingStrategyName="LogicalDeletePollingStrategy"
MarkReadFieldName="DELETED"
MarkReadValue="READ${instance}"
MarkReservedValue="MINE${instance}"
MarkUnreadValue="FALSE"
SequencingFieldName="TITLE"
MaxRaiseSize="5"
MaxTransactionSize="5"
PollingInterval="5"
NumberOfThreads="1"
DelayCommit="false"
PollForChildUpdates="false"
UseBatchDestroy="false"
ReturnSingleResultSet="false"
MappingsMetaDataURL="receiveService_toplink_mappings.xml" />
<input/>
</operation>
</binding>
The only problem I am having is when I get the ${instance} a 0 is returned instead of the instance number.
Am I missing something in the configuration of the soa instance or what???
thanks
james

Disabled services cannot be started.
You need to change its status to Manual to be able to do that.
Once done, then to start:
C:\> net start OracleService<your_sid>to stop:
C:\> net stop OracleService<your_sid>

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Edited by: user13095767 on 26-Feb-2012 22:40
Edited by: user13095767 on Feb 27, 2012 8:50 PM

user13095767 wrote:
Hello,
Suppose, this is a 2 node rac and where the failover is on and load balance is off.
I just want to know, that when during failover the service will points out to other instance.
1) Want to know, when the service gets failover after connecting to database [i.e., sqlplus]
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We are using ORACLE CLUSTERWARE 11G R1 and database 11g R1.
And also, I want to take the awr snapshot report where my servie is running at that point of time. Is there any way to find it out. Unnecessarily i don't want to generate the report for other instances as well.
Thanks in advance,
Thanks,
Edited by: user13095767 on 26-Feb-2012 22:40
please do not type the subject in upper case. please edit it.
refer the links:-http://www.ardentperf.com/pub/schneider-services.pdf
http://oracleinstance.blogspot.in/2010/08/transparent-application-failover-taf.html
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Microsoft (R) Windows Script Host Version 5.6
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ID : 2091137906
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Obtaining the instance of the processing node

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