Maintaining OAS cartridge state

I'm not sure this forum is the right place to post this question
but anyway. My problem is to create OAS cartridge application
(JWeb or PLSQL ) that uses Oracle stored PLSQL packages. Each
time the OAS submits request to the stored procedure it seems
PLSQL package has lost its state. That means that all packaged
variables has been initialised. For example, consider this PLSQL
code stored in Oracle database
Package Test IS
Procedure First;
FUNCTION Second RETURN INTEGER;
END;
Package body Test IS
myVar INTEGER;
Procedure First IS
BEGIN
myVar := 1;
END;
Function Second RETURN INTEGER IS
BEGIN
RETURN myVar;
END;
END;
Let's say that created HTML wiht a button that fires Test.First
using either JWeb or PLSQL cartridge. After then it generates
HTML pages with another button. Clicking on that button fires
Test.Second functions using the same cartridge. That function is
supposed to return 1. But each time it returned NULL instead.
The documentation for OAS gives very confusing information about
that. It states that it is possible bind clients to particular
cartridge instance by enabling client sessions. Doing that
doesn't solve above mentioned problem. Using cookies will not
help as well because I cannot store structures like records,
PLSQL tables or cursors this way.
Andrei Filimonov
null

Andrei,
Here is a response from someone in the OAS team. Hope this
helps...
What you need is access to the same database session for all
the requests
from the same client. The session feature of OAS does guarantee
you access to the
same cartridge instance, but it's upto the cartridge instance
whether to maintain
the database session as part of the instance state or not.
You can certainly achieve this by JWeb cartridge by storing the
database session
handle as part of the instance state. As far as PL/SQl cartridge
is concerned, this
is not possible until OAS 4.0.8 which has this new feature.
Regards,
Andrei Filimonov (guest) wrote:
: I'm not sure this forum is the right place to post this
question
: but anyway. My problem is to create OAS cartridge application
: (JWeb or PLSQL ) that uses Oracle stored PLSQL packages. Each
: time the OAS submits request to the stored procedure it seems
: PLSQL package has lost its state. That means that all packaged
: variables has been initialised. For example, consider this
PLSQL
: code stored in Oracle database
: Package Test IS
: Procedure First;
: FUNCTION Second RETURN INTEGER;
: END;
: Package body Test IS
: myVar INTEGER;
: Procedure First IS
: BEGIN
: myVar := 1;
: END;
: Function Second RETURN INTEGER IS
: BEGIN
: RETURN myVar;
: END;
: END;
: Let's say that created HTML wiht a button that fires
Test.First
: using either JWeb or PLSQL cartridge. After then it generates
: HTML pages with another button. Clicking on that button fires
: Test.Second functions using the same cartridge. That function
is
: supposed to return 1. But each time it returned NULL instead.
: The documentation for OAS gives very confusing information
about
: that. It states that it is possible bind clients to particular
: cartridge instance by enabling client sessions. Doing that
: doesn't solve above mentioned problem. Using cookies will not
: help as well because I cannot store structures like records,
: PLSQL tables or cursors this way.
: Andrei Filimonov
null

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