I can rollback a update (ejb set methods), but can not rollback an
insert(ejb create methods)? Can anyone help me? Thanks.
-----Original Message-----
From: Komatineni, Satya [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, September 20, 2000 1:47 PM
To: [EMAIL PROTECTED]
Subject: EJBs & JDBC, commit(), rollback()
SessionBeanA - method1
******************************
1. Get a database connection
2. Insert a few rows
3. Close connection
SessionBeanB - method2
******************************
1. Get a database connection
2. Insert a few rows
3. Close connection
SessionBeanC - method-3
******************************
call sessionBeanA.method1()
call sessionBeanB.method2()
question
***********
If all three beans are marked as TX_REQUIRED, How does the EJB server
commits or rollback? For a regular JDBC connection( I think) , a close()
method will not allow any more rollbacks or commits. How does EJB Server
know to give the SessionBeanB-method2() the same connection that was given
to sessionBeanA?
Does EJB Server need the use of a special JDBC driver to accomplish this?
What if we want to use our own JDBC driver?
Some of the books have advocated the following method to obtain the
connection:
Datasource ds = (Datasource)jndiContext.lookup("java:comp/env/jdbc/myDB");
java.sql.Connection con = ds.getConnection();
I don'e see how the Datasource could have been aware of the ongoing
transaction. What could I be missing?
Thanks for your help
Satya.
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