Error while using jdbc pool

Question

Hi ,
I tried to create an oracle pool by admin server. When I tried to ping it I got an error something like the cache name is already used.
When I tried to use it in my code I got another error :
'java.lang.ClassCastException: com.sun.gjc.spi.DataSource cannot be cast to oracle.jdbc.pool.OracleDataSource'
The pool properties I used are :
Url : dbc:oracle:thin:@servername:port:dbname
DataSourceName: OracleDataSource
ConnectionCacheName: cache2
ConnectionCachingEnabled: true
The code I used to get the connection :
OracleDataSource poolConnDs = null;
Connection poolConn = null;
try{
InitialContext jdbcContext = new InitialContext();
poolConnDs = (OracleDataSource)jdbcContext.lookup("java:comp/env/jdbc/jndi_pool_name");
poolConn = poolConnDs.getConnection();
ResultSet res = poolConn.createStatement().executeQuery("Select * from my_table");
}catch(Exception e){
e.printStackTrace();
}finally{
try{
poolConn.close();
}catch(Exception e){
e.printStackTrace();
Can anybody help me ??
Thanx in advance

Answer 1

You should not be using com.sun.appserv.jdbc.DataSource in your code.
Neither OracleDataSource.
Change your code from
"poolConnDs = (OracleDataSource)jdbcContext.lookup("java:comp/env/jdbc/jndi_pool_name");"
to
"poolConnDs = (javax.sql.DataSource)jdbcContext.lookup("java:comp/env/jdbc/jndi_pool_name");"
Hope this works.
Thanks,
-Jagadish