Why do we need to specify Role baseprovider and membership provider in Central Admin and security config files?

Hi,
why do we need to specify role base provider and membership provider files in central admin and securiy config files.
thanks,
gaurav

We use 3 settings in Forms based auth:
1 Membership = This contains Users and groups information. (This table also has username and password)
2 ConnectionString = Connetion details to connect to database is stored here(servername, databasename, username, password, port )
3 Role = This table contains all the Roles (Admin, contibutor, etc of the data source)

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import java.sql.ResultSet;
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Context initContext = new InitialContext();
Context envContext = (Context) initContext.lookup("java:/comp/env");
OracleDataSource ds = (OracleDataSource) envContext.lookup("App1ConnectionPool");
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throw new Exception("Error: No Context");
if (ds == null)
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conn = null;
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conn = (OracleConnection ) ds.getConnection("app1","app1");
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conn = (OracleConnection ) ds.getConnection();
But when I use this code, I get the following error:
java.sql.SQLException: invalid arguments in call
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     at oracle.jdbc.driver.DatabaseError.throwSqlException(DatabaseError.java:146)
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     at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:221)
     at oracle.jdbc.pool.OracleDataSource.getConnection(OracleDataSource.java:165)
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... more follows, but I trimmed to keep posting shorter :-)
Is there anyway that I can avoid having to pass the user/password to getConnection()? It seems that I should be able to control the user/password used to establish the connection pool directly in the server.xml file and not have to supply it again in my java code. In earlier experiments when I was using "import java.sql.*" and using it's DataSource, I can use getConnection() without having to pass user/password, but then the Oracle Proxy methods don't work.
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If anyone can point me to a better method of using connection pools and proxy sessions, I would appreciate it.
Thanks,
Alan

Hi,
Thanks for the replies.
Avi, I'm not really sure what you are getting at with the setConnectionProperties. I looked at the javadoc and saw that I can specify user/password, but since I'm using a connection pool, shouldn't my Datasource already have that information?
Maro, your comment about not having set the user/password for the Datasource is interesting. Are you referring to setting it in the server.xml configuration file? As you can see I did specify it in addition to setting the URL. In my code example, I'm not having to respecify the URL, but maybe I have a typo in my config file that is causing the username/password not to be read properly??
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Thanks.

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