How to call a object in Session in workflow?

In order to make my application work efficiently, i am going to put an class
instance in Session. However, how can i call this object in a workflow
e.g. in a business operation )?
Or does anybody can tell me whether there is another way to maintain an
instance through several workflows? By using variables, we simply can
maintain an instance (e.g. EJB or javabean ) in a single workflow. Am i
right?
Thanks a lot.
* Name: Gary Wang
* Tele: 010-65546668-8119
* Mail: [email protected]

Is your "object" and "method" in a "package" Java? Loaded in the database or outside? (ie is it a java stored procedure? )
null

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