Database Adapter configuration in WebLogic Server
Oracle database connector is a JCA connector, which is a DBAdapter.jar file deployed to the WebLogic server during the installation of FMW. The DB adapter enables the Oracle SOA Suite application (ex: BPEL process) communicate to the Oracle database via a JNDI data source. The DB adapter relies on the JDBC driver to establish communication. The interaction between the SOA application to the Oracle database via the adapter is XML message. The DB adapter received XML message and response back XML message, so it is loosely modeled, so it easily plugged into SOA application.
DB adapter consist of multiple instances, Each instance (example: eis/DB/HR ) points to a single database and the instance must map with a JNDI data source
In this section, we talk about how to create a JDBC data source and configure DB adapter for HR Schema in WebLogic 12C.
Oracle WebLogic 12C
HR Schema (Bundles with Oracle database)
Create JDBC Datasource
Login into WebLogic Server
Expand Services >> Click New >> Select Generic Data Source
Input a Name >>input a JDBC Name (format is jdbc/<SCHEMANAME>) >> Database type as Oracle >> Click Next
Note: Copy this JNDI name in a notepad file, we need this name to configure DB adapter
Click driver as Oracle >> Click Next
Input the Database connection configuration >> Click Next
Click the button Test Configuration >> Verify the connection result
Enable the server >> Click Finish
Note: Please point the server where you want to have the data source available. You may enable datasource to AdminServer, Cluster, Managed servers based upon how WebLogic configured.
The JDBC Data Sources wizard will list the data source that we created above
Configure datasource in DBAdapter
Click on the Deployments >> Click Next >> Click DbAdapter
Click Configuration >> Click Outbound Connection Tools >> Click New
Input your instance name (eis/DB/HR), You will need this name in your SOA application to create DB Adapter
It will display the successful message >> Click Ok
Now click the Configuration >> Outbound Connection Pools >> Click the instance (eis/DB/HR) we created above
Click on the propertyValue against the XADataSourceName >> Input the JNDI name (jdbc/HR) >> Hit Enter button on your keyboard >> Click Save
Note: we highlighted the JNDi name in green colour above
You will notice the successful message as shown below >> Click Save
Click Deployments >> Click Next >> Enable the checkbox for DBADapter >> Click Update
Click the box ‘Update this application in place with new deployment plan changes. (A deployment plan must be specified for this option)’ >> Click Update
Note: If you are configuring the DB adapter in a clustered environment then copy the plan.xml file to the other machine before the update. The plan.xml file location is mention in the Deployment Plan path as shown in the picture below
Success message appears on the screen, Restart the WebLogic server for the changes take effect
That’s it. We have configured a database connection in DBAdapter. Now use this DB adapter information in your SOA application. Click here for instruction to create an SOA project (BPEL) that connects a DB adapter instance.
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