Maintaining Single Session between 2 partner links in BPEL Process

Hi All,
We have a procedure that inserts data into a Global Temporary table. We have exposed this as a partner link in our BPEL process. We have a procedure that retrieves data from this Global Temporary table and does some processing. We have exposed this procedure also as a partner link in our BPEL process.
But problem is according to our understanding each partner link takes different session. And Global Temporary tables data is session/transaction specific.
Is there any way to make complete BPEL process or a set of BPEL activities run in same session or share same transaction.
Any pointer on this is of great help.
Thanks,
Uma.

1.     BPEL process should be sync (to ensure the process runs in one thread).
2.     On each partner link specify participate=true (as property)
3.     DB adapter's database connection MUST point to a XA-location to participate in the global transaction. I.e. modify oc4j-ra.xml, data-sources.xml as follows:
i. oc4j-ra.xml:
Location: BPEL_HOME\integration\orabpel\system\appserver\oc4j\j2ee\home\application-deployments\default\DbAdapter\oc4j-ra.xml
<connector-factory location="eis/DB/IGSD1R12" connector-name="Database Adapter">
<config-property name="driverClassName" value="oracle.jdbc.driver.OracleDriver"/>
<config-property name="connectionString" value="jdbc:oracle:thin:@ap672sdb.us.oracle.com:25502:IGSD1R12"/>
     <config-property name="userName" value="apps"/>
<config-property name="password" value="apps"/>
<config-property name="minConnections" value="1"/>
<config-property name="maxConnections" value="5"/>
<config-property name="minReadConnections" value="1"/>          <config-property name="maxReadConnections" value="5"/>
<config-property name="usesExternalConnectionPooling" value="false"/>
<config-property name="dataSourceName" value=""/>
<config-property name="usesExternalTransactionController" value="false"/>
<config-property name="platformClassName" value="oracle.toplink.internal.databaseaccess.OraclePlatform"/>
<config-property name="usesNativeSequencing" value="true"/>
<config-property name="sequencePreallocationSize" value="50"/>
<config-property name="tableQualifier" value=""/>
<config-property name="defaultNChar" value="false"/>
<config-property name="usesBatchWriting" value="false"/>
</connector-factory>
ii. data-sources.xml
Location: BPEL_HOME\integration\orabpel\system\appserver\oc4j\j2ee\home\config\data-sources.xml
     <data-source class="com.evermind.sql.DriverManagerDataSource"
name="LocalDataSource"
location="loc/LocalDataSource"
xa-location="LocalDataSource"
ejb-location="jdbc/LocalDataSource"
connection-driver="oracle.jdbc.OracleDriver"
username="apps"
password="apps"
max-connections="50"
min-connections="10"
     connection-retry-interval="30"
max-connect-attempts="10"
url="jdbc:oracle:thin:apps/[email protected]:25502:IGSD1R12"/>

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