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For uPortal 3.1 includes a database-persistent PortalEvent logger will be included. The logger will use the same JPA/Hibernate persistence API that other new database facing code in uPortal 3 uses. The event driven portal statistics model introduced in uPortal 2.6 is used which allows new events to be logged by this handler by simply adding the appropriate Hibernate mapping information about the classevent logger capable of tracking a large amount of information about portal usage. Interesting loggable activities include user sessions, portlet interactions, and portlet rendering times. Adopters may also add new loggable events.

Database Event Logging Concerns

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To configure which events are logged refer to the JavaDocs for the AbstractLimitedSupportEventHandler. The QueueingEventHandler which sits in front of the persisting bean extends AbstractLimitedSupportEventHandler to event filtering can be configured there.

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The Hibernate entity mappings and PortalEvent classes are not designed to be read from the database using Hibernate, only to be a logging facility. Any reporting tools should just use straight SQL as doing large reporting tasks via ORM is not easy and the PortalEvent object model is not designed for such use.