how to implement "context persistent" within AXIS

Hi, there,

I have a question about how to implement context persistence or context management in web service, mainly about AXIS. in my application, sometime the middle result is very large, so I prefer to store it in a file or database, and then the same call can take advantage of this session information when it access my service later.

in Axis, there seems two ways about context management. one is cookies and another is soap header. but both of them seem not suitable to store large data for a very long time. it seems to me they are just used to store some very short information and identify client.

as for tomcat, it provides a way to manage "context persistent". the admin can specify what kind of medium to store, plain file or database. but I don't know if I can incorporate this tomcat's technology into my web service application that use AXIS tool. if I can, how?

I will greatly appreciate if you can give me any hint or some link to relevant articles!

best wishes!
Sammy