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Hibernate version:3.2.6.ga
Spring:2.0.8
Name and version of the database you are using:SqlServer2005
Java version: 1.5
Tomcat version: 5.5.25
OS: Fedora 8


We have the following scenario:
- Web Application running on tomcat and using hibernate
- Web service running on another tomcat using hibernate
- Both have the same server/hibernate configurations and using Spring to instatiate their SessionFactory

WebApp make a call to WebService that returns a complex object that contains a reference to a SessionFactory(the one built on WebService context).

The questions are:
1- What about SessionFactory serialization ?
2- Is this a good pratice passing SessionFactory cross different context on different machines ?
3- Are there some perfromance pitfall (processor or network)

I don't think you're going to be able to serialize a SessionFactory and pass it across the network.

The XA specification deals with distributed transactions. What you really want is to have all the various players take part in a single, common transaction. That's the game you should play.

Distributed transactions across a web service are always painful. Let us know how you fare.