Hello ,
I have one sample "Student" Entity Bean(CMP) example which demonstrates the the Jboss Application server do not use any instance pooling.
It Creates a new Instance every time , I send a request to it.
My example first added 20,000 rows in Student table with schema (id,firstname,lastname,address).
the row is (id++,'test','test','test') with id start with 0.
I inserted this row using StudentHome.create(StudentValueObject) 20,000 times in a for loop.
Each time I iterate through this loop , container creates a new Instance of StudentEntityBean. I watched this by Putting Sys.out.println inside no argument constructor of my StudentBean.
It takes around 30 mins to add 20,000 rows on a machine with 256MB RAM.
One more thing , when i use findByName('test') , it returns me a collection of StudentRemote Objects of size 20,000 ;
Againg when I iterate through this collection to print the student (fname.lname,address) , it creates the new Instance of StudentBean for each iteration.
I think this demonstrates that JBoss do not use any instance pooling , it simply creates new entity bean instance every time.
Regards,
