How to use RAC database connection details in oc4j.xcfg files

Hi all,
we are using oc4j.xcfg files for the application module configuration for an ADF application. and one of the database has been configured on RAC. Any input on how to specify the RAC database details in the oc4j.xcfg file specially for the host name parameter.
The example entry like in oc4j.xcfg is like
?xml version = '1.0' encoding = 'UTF-8'?>
<BC4JConfig>
<AppModuleConfigBag>
<AppModuleConfig name="AppModuleLocal">
<AppModuleJndiName>dbta.model.AppModule</AppModuleJndiName>
<DeployPlatform>LOCAL</DeployPlatform>
<JDBCName>connectDB</JDBCName>
<ApplicationName>dbta.model.AppModule</ApplicationName>
<jbo.project>Model</jbo.project>
</AppModuleConfig>
</AppModuleConfigBag>
<ConnectionDefinition name="connectDB">
<ENTRY name="ConnectionName" value="connectDB"/>
<ENTRY name="URL" value="jdbc:oracle:thin:<user>/<pass>@<server>:<Port>:<SID>"/>
<ENTRY name="HOSTNAME" value="<server>"/>
<ENTRY name="JDBC_PORT" value="<port>"/>
<ENTRY name="SID" value="<SID>"/>
<ENTRY name="ConnectionType" value="JDBC"/>
<ENTRY name="JdbcDriver" value="oracle.jdbc.driver.OracleDriver"/>
<ENTRY name="ORACLE_JDBC_TYPE" value="thin"/>
<ENTRY name="DeployPassword" value="true"/>
</ConnectionDefinition>
how to specify the failover nodes details in the above entry for host name etc.
Thanks
Navin

Here you are; all you want at
http://www.oracle.com/technology/sample_code/tech/java/sqlj_jdbc/files/9i_jdbc/OCIdriverTAFSample/OCIdriverTAFSample.java.html

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