DB session used by an AM

Question

Hello,
a typical scenario is when you have a web application referencing an application module, which, in turns, uses some db connections from a given datasource.
Suppose I want to do some DML via some exported AM methods attached to some button actions on the page. These methods get a DBTransaction() of the AM to build CallableStatements that in turn will call stored procedures WITHOUT committing.
How can I be sure that all those calls issued by spot user actions (during his/her http session) share the same DB session?
Thanks.

Answer 1

Hello John,
but when you have buttons that end up performing the following block of code, there is no entity taking care of the modifications on the DB, since as far as I know calling the statement this way bypasses any potential services from BC components. This is why I asked if all these kind of statements issued by user requests at any time belong to the same DB session, so that on commit the whole group of previous modifications are committed together as if they were a single atomic transaction.
Basically I am asking if there is any risk that the following method will use different DB sessions when the user clicks many times on the same button in one page during one HTTP browser-session.
In other words I am afraid that getDBTransaction() might take different DB connections from the pool of available connections, where each connection also has a different DB session for some reason.
    public void doSomething() {
        CallableStatement cs;
        cs = getDBTransaction().createCallableStatement(" Declare  Begin  mypck.do_something_involving_dml_on_different_objects(?, ?); End; ", 0);
        try {
            cs.setString(1, "param1");
            cs.setString(2, "param2");
            cs.execute();
            cs.close();
        } catch (SQLException e) {
    }