CallBack from Oracle to a bean

Question

I am using WL5.1 and Oracle 8i.
My application demands clients to be refereshed whenever a table in the
database is modified.
For this, I plan to load Java class inside Oracle 8i wrap it inside a
procedure, which will be invoked on the table update.I was able to do
the basics and test it also.
But, I am unable to call the EJB Bean deployed in
the WL.
Here is part of the Java class loaded in Oracle 8i
static public Context getInitialContext() throws Exception
Hashtable h = new Hashtable();
h.put(Context.INITIAL_CONTEXT_FACTORY,
"weblogic.jndi.WLInitialContextFactory");
h.put(Context.PROVIDER_URL, url);
if (user != null) {
System.out.println ("user: " + user);
h.put(Context.SECURITY_PRINCIPAL, user);
if (password == null)
password = "";
h.put(Context.SECURITY_CREDENTIALS, password);
return new InitialContext(h);
I get an error
Cannot instantiate class: weblogic.jndi.WLInitialContextFactory.
what can be the problem, is it that it's not possible to
call a external program from within Oracle Server.Oracle documentation
doesn't talk about it clearly.
Can anybody help me out or give me a better idea of how to do callbacks.
Thanks!
Sandip

Answer 1

Yes i restarted. Here my file contains.
Can you pls check, did I done mistake on these files
listener.ora*
-bash-3.00$ cat listener.ora
# LISTENER.ORA Network Configuration File: /oracle/ora_9/network/admin/listener.ora
# Generated by Oracle configuration tools.
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dr-atm)(PORT = 1521))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = PLSExtProc)
(ORACLE_HOME = /oracle/ora_9)
(PROGRAM = extproc)
(SID_DESC =
(GLOBAL_DBNAME = orasql)
(ORACLE_HOME = /oracle/ora_9)
(SID_NAME = orasql)
(SID_DESC =
(PROGRAM = hsodbc)
(ORACLE_HOME = /oracle/ora_9)
(SID_NAME = myodbc5)
(ENVS=LD_LIBRARY_PATH = /usr/local/lib:/oracle/ora_9/lib)
tnsnames.ora_
# TNSNAMES.ORA Network Configuration File: /oracle/ora_9/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
ORASQL =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dr-atm)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orasql)
INST1_HTTP =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = dr-atm)(PORT = 1521))
(CONNECT_DATA =
(SERVER = SHARED)
(SERVICE_NAME = MODOSE)
(PRESENTATION = http://HRService)
EXTPROC_CONNECTION_DATA =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC))
(CONNECT_DATA =
(SID = PLSExtProc)
(PRESENTATION = RO)
HSODBC =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS =
(PROTOCOL = TCP)
(HOST = dr-atm)
(PORT = 1521)
(CONNECT_DATA =
(SID= myodbc5)
(HS=OK)
odbc.ini_
[myodbc5]
Driver = /opt/mysql/myodbc5/lib/libmyodbc5.so
Description = MySQL ODBC 3.51 Driver DSN
SERVER = 192.168.2.244
PORT = 3306
USER = jagath
Password =
Database = test
OPTION = 3
SOCKET =
[Default]
Driver = /usr/local/lib/libmyodbc3.so
Description = MySQL ODBC 3.51 Driver DSN
SERVER = localhost
PORT =
USER = root
Password =
Database = test
OPTION = 3
SOCKET =