Hello, I recently read that if a JavaBean implements Serializable the servlet engine can write it to disk if it is not being used and if it's algorithm decides this would be a good idea.
Can anybody tell me if Tomcat does this? Should I be sure to always implement Serializable in JavaBeans that I am storing in session? The actual quote from the book is: Occasionally some servers may choose to write these attributes to disk to free memory. To take advantage of this functionality, it is a good idea to ensure that any objects placed inside a session implement the java.io.Serializable interface so that the object may be written to a stream. In a similar manner, applications that execute inside a distributed environment may have their entire sessions and session attributes passivated and reactivated on a different machine. If our application is marked as distributable then it is important that any session attributes are Serializable to support this. Wrox: Professional SCWCD Certification: ISBN 1-86100-770-1 Thanks, Andoni.
