Starting over and load XDK in the middle tier
Okay, I have seen how it works and very much appreciate its capabilities
even though I have only worked on the sample codes. My problem is
I had different versions of XDK components loaded (xmlparsers,oraclexsql
xslprocessors,etc) because the INSTRUCTIONS does not specify that
one should do a dropjava first before loading the new versions in.
<HINT! HINT!> It is stranged that I have used dropjava to unload
bunch of XDK related(at least from what i can remember) jar files
and rebooted the server, started but yet I can still serve XSQL files.
So it seems dropjava didnt work unloading this stuff.
How do I clean up and start from scratch again? What is the proper
steps to unload these XDK jar files? Furthermore, this time
I only want to load XDK in the middle tier and not on the database
itself, is this possible? I have the OC4J loaded on another machine
so I will use that to query the oracle database, basically having two
machines. Is there a documentation that explains these step by
step so I dont have to gather bits and pieces from different docs?
I even wanted to start further back to rmjvm.sql and the reload the
java jvm over again.
Thanks in advance.
Is it possible to take the credentials in the middle
tier and query sys.user$ whether this plaintext
username/password matches the username/hashed
password?You cannot use the sys.user$ table to query user information, you don't have the algorithms used to hash the password, so it is not possible, if you want to authenticate users at the middle tier using the actual database user, then you must consider using Single Sign On and use the Enterprise User, this way oracle doesn't locally authenticate users, but it does by means of the user stored at the OID.
If you use a J2EE based application you should consider using JAAS to perform authentication, if you are using Oracle Application Server, the JAAS module is already prepared (but not enabled) to be integraded with the Oracle Identity Management mechanism. I suggest you to enable the JAAS module, even if you have to authenticate users by means of the local /etc/passwd like file, then once you have learnt to configure SSO and Oracle IM, migrate the configuration to use OID.
~ Madrid
http://hrivera99.blogspot.com/
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