| Alias | Implement this interface when implementing special custom Aliases
 for classes, packages or namespaces. | 
| CacheConfiguration | Interface to configure the cache configurations. | 
| CacheConfigurationProvider | A configuration provider that provides access
 to the cache-related configuration methods. | 
| ClientServerConfiguration | Client/Server configuration interface. | 
| CommonConfiguration | Common configuration methods, applicable for
 embedded, client and server use of db4o.
 In Client/Server use it is good practice to configure the
 client and the server in exactly the same way.
 | 
| CommonConfigurationProvider | A configuration provider that provides access to
 the common configuration methods that can be called
 for embedded, server and client use of db4o. | 
| Compare | allows special comparison behaviour during query evaluation. | 
| Configuration | configuration interface. | 
| ConfigurationItem | Implement this interface for configuration items that encapsulate
 a batch of configuration settings or that need to be applied 
 to ObjectContainers after they are opened. | 
| EmbeddedConfiguration | Configuration interface for db4o in embedded use. | 
| EmbeddedConfigurationItem | Implement this interface for configuration items that encapsulate
 a batch of configuration settings or that need to be applied 
 to EmbeddedObjectContainers after they are opened. | 
| EnvironmentConfiguration | Configures the environment (set of services) used by db4o. | 
| FileConfiguration | File-related configuration methods, applicable 
 for db4o embedded use and on the server in a 
 Client/Server setup. | 
| FileConfigurationProvider | A configuration provider that provides access
 to the file-related configuration methods. | 
| FreespaceConfiguration | interface to configure the freespace system to be used. | 
| FreespaceFiller | Callback hook for overwriting freed space in the database file. | 
| IdSystemConfiguration | Interface to configure the IdSystem. | 
| IdSystemConfigurationProvider | A configuration provider that provides access
 to the IdSystem-related configuration methods. | 
| IdSystemFactory | Factory interface to create a custom IdSystem. | 
| LegacyClientServerFactory |  | 
| NameProvider | A provider for custom database names. | 
| ObjectAttribute | generic interface to allow returning an attribute of an object. | 
| ObjectClass | configuration interface for classes. | 
| ObjectConstructor | interface to allow instantiating objects by calling specific constructors. | 
| ObjectField | configuration interface for fields of classes. | 
| ObjectTranslator | translator interface to translate objects on storage and activation. | 
| QueryConfiguration | interface to configure the querying settings to be used by the query processor. |