ADF Database Connection at Runtime

Hi,
I have developed a ADF based Web Application, deploy the code into different appServers [connecting to Different Databases] but unable to connect to the Required Database at Runtime.
I have the following in my dataSources.xml & web.xml which looks like this.
dataSources.xml
<managed-data-source connection-pool-name="AIAQueryConnectionPool" jndi-name="jdbc/AIAQueryDataSource" name="AIAQueryDataSource"/>
<connection-pool name="AIAQueryConnectionPool">
<connection-factory factory-class="oracle.jdbc.pool.OracleDataSource" user="aia" password="aia" url="jdbc:oracle:thin:@//occf09.techmahindra.com:1521/ftsit"/>
</connection-pool>
web.xml
<resource-ref>
<description>AIA data source connection for FastTelco</description>
<res-ref-name>jdbc/AIAQueryDataSource</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
<res-sharing-scope>Shareable</res-sharing-scope>
</resource-ref>
deployed the web Application "TestTransaction" and created ConnectionPool & DataSources for this Application "TestTransaction"
when i run the Application i am unable to connect to the required Database/(s)
Is that correct what i was doing ?
BUT If i have the entry of that specific Database in ./model/common/bc4j.xcfg file i am able to Connect to the Database
and if i remove the entry from ./model/common/bc4j.xcfg file, I am unable to Connect to the Database.
Why is it so ??
Can anybody give me the process / code to Connect to the Database in web based ADF Application at Runtime.
or
Pick up the Database Configuration Values from a Properties file and establish a Database Connection ??
thanks in Advance...
regards,
anvv sharma

Hi,
I got it working today and not yes'day to the modifications suggested by arun...the only difference being i have stop / start the Application then it started with the working what i have done yes'day
also thanks for shay....... it was useful link
regards,
anvv sharma

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