this Exception is thrown during any of the db4o open calls if the database file is locked by another process.

db4o exception wrapper: Exceptions occurring during internal processing will be proliferated to the client calling code encapsulated in an exception of rhis type.

a unique universal identify for an object.

extended factory class with static methods to open special db4o sessions.

carries in-memory data for db4o in-memory operation.

this Exception is thrown, if objects can not be stored and if db4o is configured to throw Exceptions on storage failures.

An old file was detected and could not be open.

Static constants to describe the status of objects.

generic callback interface.

extended client functionality for the ExtObjectContainer interface.

Both Db4o.openClient() methods always return an object so a cast is possible.

The ObjectContainer functionality is split into multiple interfaces to allow newcomers to focus on the essential methods.

extended functionality for the ObjectContainer interface.

Every db4o ObjectContainer always is an so a cast is possible.

Db4objects.Db4o.IObjectContainer.Ext is a convenient method to perform the cast.

The ObjectContainer functionality is split to two interfaces to allow newcomers to focus on the essential methods.

extended functionality for the ObjectServer interface.

extended functionality for the ObjectSet interface.

Every db4o ObjectSet always is an ExtObjectSet so a cast is possible.

Db4objects.Db4o.IObjectSet.Ext is a convenient method to perform the cast.

The ObjectSet functionality is split to two interfaces to allow newcomers to focus on the essential methods.

callback methods.

interface to the internal reference that an ObjectContainer holds for a stored object.

the internal representation of a stored class.

the internal representation of a field on a stored class.

provides information about system state and system settings.